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Supply chain analysis of fresh fruits and vegetables (FFV): Prospects of contract farmingNalini ARUMUGAM, Mohamed Arshad FATIMAH, Eddie F.C. CHIEW, Mohamed ZAINALABIDINAgric. Econ. - Czech, 2010, 56(9):435-442 | DOI: 10.17221/30/2009-AGRICECON The paper examines the factors that lead farmers to participate in c the contract farming in the Peninsular Malaysia. The primary data was collected through a survey using a questionnaire on the total of two hundred and eight farmers from various states in Malaysia. The study utilizes the stratified sampling method. Both descriptive and inferential statistics were used to analyze the data. The survey identified forty-one contract farmers. Factor analysis was carried out to identify the factors that lead farmers to participate in the contract farming. Based on the analysis, five factors were identified as the reasons for contracting, namely, market stability, and access to marketing information and technology, transfer of technology to improve farming practices, access to inputs and indirect benefit. Contract farming or contract arrangements can be a valuable source of an additional income and knowledge that can be employed to enhance the productivity of the entire farming enterprise. |
The effect of different nitrogen nutrition on proline and asparagine content in plantM. Neuberg, D. Pavlíková, M. Pavlík, J. BalíkPlant Soil Environ., 2010, 56(7):305-311 | DOI: 10.17221/47/2010-PSE Mixture of plants (Festulolium: Trifolium pretense L.) was grown in the pot experiment with different forms of nitrogen nutrition. The fertilizers (ammonium sulphate or calcium nitrate or ammonium nitrate) were applied conventionally or according to the CULTAN method (Controlled Uptake Long Term Ammonium Nutrition). The absolute growth rate (AGR) and contents of free asparagine and proline in the aboveground biomass were determined. Additional nitrogen increased the dry weight of biomass and AGR of the plants treated with sidedress application in comparison with plants treated with the CULTAN method. The results suggest increased levels of free proline in CULTAN-treated plants while those of asparagine did not increase. The significance of these observations to the loss of potential yield and the relationship between methods of application is considered. |
Soil characteristics under selected broadleaved tree species in East NorwayK. Rejšek, O. Haveraaen, A. Sandnes, K. SomerlíkováJ. For. Sci., 2010, 56(7):295-306 | DOI: 10.17221/86/2009-JFS Comprehensive analyses of soil properties of sites of native Scandinavian broadleaved tree species were performed in 36 habitats in East Norway. The material consisted of stands of silver birch (Betula pendula Roth.), white birch (Betula pubescens Ehrh.), black alder (Alnus glutinosa Gaertn.), speckled alder (Alnus incana Moench.), European ash (Fraxinus excelsior L.), pedunculate oak (Quercus robur L.) and sessile oak (Quercus petraea [Matt.] Liebl.). The main objective was to describe the vertical characteristics and variations in some selected soil variables of the soil profiles. Particular soil horizons of 15 Brunisolic soils, 11 Regosolic soils, 6 Gleysolic and 4 Podzolic were sampled and analyzed for soil texture, bulk density, specific density, porosity, oxidizable carbon, total nitrogen content, pH in water, exchangeable acidity, exchangeable cations and anions (Mg, Ca, Mn, Al, S, Fe, B, P and K), cation exchange capacity and base saturation. No regular patterns were found in selected soil properties when tested between various soil units in silver birch stands. Furthermore, silver birch stands were found on sites, which topsoil (i) significantly differed in their cation exchange capacities, (ii) did not differ significantly in their pH values, and (iii) mostly differed in their clay contents and (iv) mostly did not differ in BS. Differences among the Humic Regosols, Luvic Gleysols, Sombric Brunisols, Eutric Brunisols and Humo-Ferric Podzols for silver birch stands in their topmost horizons of humified organic matter intimately mixed with the mineral fraction horizons and differences among particular soil horizons for the main soil properties under all the selected broadleaved tree species stands are discussed. |
Winter wheat EllyNew VarietiesP. Horčička, O. Veškrna, T. Sedláček, J. ChrpováCzech J. Genet. Plant Breed., 2010, 46(4):183-185 | DOI: 10.17221/125/2010-CJGPB |
Analysis of genetic diversity and phylogeny of partial coat protein domain in Czech and Italian GFLV isolatesAleš EICHMEIER, Miroslav BARÁNEK, Miroslav PIDRAPlant Protect. Sci., 2010, 46(4):145-148 | DOI: 10.17221/10/2010-PPS The genetic diversity of Grapevine fanleaf virus (GFLV) was evaluated in 4 isolates sampled from naturally infected grapevines from South Moravia (Czech Republic) and 2 Italian isolates from Bari (Italy). Conserved regions within sequences in databases were found and new primers corresponding to these regions were designed and tested for RT-PCR amplification of the CP codifying region. After sequencing of obtained amplicons the similarity of isolates was analysed via alignments of sequences and by means of dendrograms |
Inguinal-scrotal herniation and torsion of the large colon in an adult Andalusian stallion: a case reportF.J. Mendoza, A. Perez-Ecija, J.C. EstepaVet Med - Czech, 2010, 55(6):281-284 | DOI: 10.17221/2993-VETMED A 3-year-old Andalusian stallion was referred to the Veterinary Teaching Hospital of the University of Cordoba due to acute onset of colic pain. At admission, the horse presented a pronounced distension of the inguinal and scrotal region which was cold and painful on palpation. On rectal palpation no small intestine gas distention was noticed, and the left large colon was detected protruding into the left internal inguinal ring. The percutaneous scrotal sonogram showed an intestinal loop which had moved into the scrotal bag close to the left testicle. The horse was diagnosed with indirect acquired left inguinal hernia. The necropsy revealed an impacted and twisted pelvic flexure in the vaginal space. To the authors' knowledge, this report is the first that describes a clinical case of inguinal-scrotal herniation and torsion of the pelvic flexure into the inguinal canal in an adult stallion associated with an impaction of the ascending colon. |
Guttural pouch mycosis in a donkey (Equus asinus): a case reportF. Laus, E. Paggi, M. Cerquetella, D. Spaziante, A. Spaterna, B. TeseiVet Med - Czech, 2010, 55(11):561-565 | DOI: 10.17221/3011-VETMED Guttural pouch mycosis is an emergency disease of the upper respiratory tract in equine species. In the present report a case of guttural pouch mycosis in a female, seven year-old pregnant donkey is described. A serious dyspnea which necessitated tracheotomy and preceding epistaxis was the most important clinical feature of guttural pouch mycosis in the donkey. A full and rapid effectiveness of the topical therapy, the protocol for which is described, is the main distinguishing feature with regard to treatment. In the Authors' knowledge a detailed description of clinical features, treatment and follow up of guttural pouch mycosis in a donkey is not available in the scientific literature. The anatomical and physiological peculiarity of donkeys could explain some of the differences with horses in clinical presentation and therapeutic management. |
Studies on antioxidant constituents of some domesticated capsicums in the middle hill conditions of western HimalayasV. Pandey, H. K. Pandey, D. Dayal, U. C. Joshi, T. Pant, Z. AhmedHort. Sci. (Prague), 2009, 36(1):26-30 | DOI: 10.17221/18/2008-HORTSCI The objective of this study was to determine some cultivars suitable for their antioxidant constituents, which can further be used in breeding programmes to breed superior varieties and F1 for higher quality attributes. Thirty cultivars of domesticated capsicums were grown and analyzed during 2006-2007; they showed significant variation in their ascorbic acid and capsaicinoids contents. On the basis of ascorbic acid, the rank order of cultivars was PBC-926 > Chilli Long Black > HC-201 > KT OV > Local D-2. On the basis of capsaicinoids content, five top cultivars were selected, namely DARL-210 > Naga Jalokia > Red Sabina > CO-6-1 > Chilli Long Black. |
Comparison of demographic development in the CR and the EU countriesLibuše SVATOŠOVÁAgric. Econ. - Czech, 2010, 56(4):176-182 | DOI: 10.17221/24/2010-AGRICECON Demographic development of human society is influenced by economic and political changes. The demographic development of most EU countries, including the Czech Republic, is characterized by the change of the age structure, the increase in the share of the third biological generation and thereby by aging of the population. These changes do not proceed with the same intensity in all countries; there are differences in the development, both among the EU countries and also the regional ones in the frame of the country. The paper presents an evaluation of the demographic development in the EU countries and further in the particular CR regions. The aim is to judge the regional differentiation of this development and to find an analogy of the EU countries. |
A role of the mechanical preparation of soil in the natural regeneration of pedunculate oak (Quercus robur L.) in floodplain forestsK. HouškováJ. For. Sci., 2005, 51(8):371-379 | DOI: 10.17221/4572-JFS The subject of our research was to verify effects of the mechanical preparation of soil in the natural regeneration of pedunculate oak in a floodplain forest. On the site of a hard-wooded floodplain forest at the confluence of the Morava and Dyje rivers (Czech Republic), several sample plots were established differing in the preparation of soil during regeneration, in weeding the plots and in the period of the implementation of soil surface scarification before and after the fall (or distribution) of acorns. On the basis of results obtained, mechanical preparation of soil on non-weed-infested plots in the heavy seed year is not necessary, however, it supports seedling emergence from acorns and eliminates weed tree emergence and weed. However, it is better to realize it only after the fall of acorns and to incorporate them into soil and thus their emergence will be increased. Soil scarification can be carried out also in the course of harvesting the parent stand through the extraction of wood and slash from the regenerating area. In weed-infested stands, however, the thorough preparation of soil before the fall of acorns appears to be a necessity. |
State and evaluation of information and communication technologies development in agricultural enterprises in the Czech RepublicJ. Vaněk, E. Červenková, J. Jarolímek, P. ŠimekPlant Soil Environ., 2010, 56(3):144-147 | DOI: 10.17221/212/2009-PSE The paper presents selected information on the newest results of a wide investigation of the state of information and communication technologies development in agricultural production enterprises in the Czech Republic. The investigation was realized in the first half of 2009 with the main aim to analyze development of information infrastructure and actual trends in ICT use in rural regions where most entrepreneurial subjects operate. Besides a presentation of own research results, some obtained pieces of knowledge are then commented and eventually discussed in connection with official outputs of the Czech Statistical Office (CSO), if they have a certain relevance to the given problems. |
Application of different sterilising modes and the effects on processed cheese qualityZuzana Lazárková, František Buňka, Leona Buňková, Pavel Valášek, Stanislav Kráčmar, Jan HraběCzech J. Food Sci., 2010, 28(3):168-176 | DOI: 10.17221/44/2008-CJFS The aim of the present work is to evaluate the impacts of four different sterilising modes (110°C 100 min, 115°C 32 min, 120°C 10 min, and 125°C 3.2 min - with a constant lethal effect on microorganisms) on some chemical (pH, total and bio-available lysine, and ammonia content), microbiological, and sensory (shade and acceptability) properties of processed cheese depending on the lactose additions (0.0-2.0% w/w). All sterilising modes used were sufficient to inactivate the microorganism groups observed (total number of microorganisms, colony forming units of yeasts and/or moulds, number of spore-forming microorganisms). The falling sterilisation temperature kept for an adequately prolonged period of time caused darkening of the processed cheese and a decline of their acceptability. Consequently, greater losses of lysine and ammonia content increase occurred when the sterilisation temperature decreased. Compared to non-sterilised products, the smallest changes were detected in the cheese treated with temperatures 125°C for 3.2 min, and 120°C for 10 minutes. The decrease of the processed cheese quality was more apparent with the growing lactose concentration. |
Must characteristics of selected grapevine varieties used for local wine productionP. Vrána, O.M. JandurováCzech J. Genet. Plant Breed., 2010, 46(10):S82-S84 | DOI: 10.17221/697-CJGPB The must characteristics of some old varieties (present on the list of varieties allowed for land wine making) were compared with their commercial relatives, in order to estimate their specific benefits and advantages for wine processing. In the case of Portuguese blue and Pinot noir pr飯ce, we additionally identified the influences of environmental conditions on their must composition and wine quality. Clear differences in sugar accumulation among varieties were detected, as well as differences in earliness. |
Effect of the mycoflora of ergot (Claviceps purpurea)sclerotia on their viabilityMichal ONDŘEJ, Bohumír CAGAŠ, Eliška ONDRÁČKOVÁPlant Protect. Sci., 2010, 46(2):66-71 | DOI: 10.17221/48/2009-PPS Twenty fungal species were isolated from sclerotia of ergot (Claviceps purpurea) originating from rye. In in vitro tests with the anamorphic stage of ergot (known as Sphacelia segetum) high mycoparasitic activity was exhibited only by two of them - Clonostachys rosea and Trichoderma harzianum, moderate mycoparasitic activity was detected in Ulocladium sp., Clonostachys catenulata, Trichoderma hamatum, and Trichothecium roseum. In in vitro tests of mycoparasitic activity with sclerotia of the fungus Sclerotinia sclerotiorum their rapid and total destruction was brought about only by the fungi Clonostachys rosea and Trichoderma harzianum. The viability of overwintering ergot sclerotia in the soil was influenced by their placement, age, depth of placement and treatment with a conidial suspension of the fungus Clonostachys rosea. The highest viability values were reported in fresh one-year-old sclerotia. In two-year-old sclerotia their viability was reduced and their sensitivity to microbial activity was higher. The sclerotia aged 3 years or more did not germinate and were all microbiologically degraded in the soil. More than 80% of degradation of sclerotia which were 1 to 2 years old was caused by the fungus Clonostachys rosea. The degradation of sclerotia aged 3 to 4 years was brought about by bacteria, soil edafauna (mites, nematodes) and fungi of the genera Trichoderma, Fusarium, Clonostachys, etc. |
Effects of long-term liquid commercial semen extender and storage time on the membrane quality of boar semenS. Frydrychová, J. Čeřovský, A. Lustyková, M. RozkotCzech J. Anim. Sci., 2010, 55(4):160-166 | DOI: 10.17221/62/2009-CJAS The objective of this study was to assess the sperm membrane integrity in extended boar semen during storage time using specific spectrum laboratory methods. Boar semen was diluted with the long-term liquid commercial extenders Androhep (A), Androstar (AS), Androstar plus (AS+), LD and M III and was stored up to 96 h. The sperm membrane integrity was evaluated by motility, viable spermatozoa, short hypoosmotic swelling test (sHOST) and by the activity of the enzyme aspartate aminotransferase (AST). Negative changes in the quality of sperm membrane in relation to storage time were observed after 48 h for sHOST, after 72 h for viable spermatozoa and after 72 h for motility. The percentage of viable spermatozoa was decreased by 0.27% each hour. A statistically significant difference between extenders A and LD was observed in sHOST after 72 h and 96 h storage (P < 0.05). The AST activity did not show any statistically significant differences in extenders and in storage time. In overall assessment Androhep was the best of the tested extenders, followed by AS, AS+, M III and LD in terms of motility, viable spermatozoa and sHOST. The correlations among laboratory methods were highly significant (P < 0.001). In conclusion, the results documented that the sperm membrane integrity was statistically significantly affected by extenders and storage time (P < 0.001). Boar semen quality was the best in extender A. sHOST is a very sensitive and relatively simple method for the assessment of sperm membrane integrity in diluted semen. |
Laying pattern parameters in broiler breeder hens and intrasequence changes in egg compositionM. Gumulka, E. Kapkowska, D. MajCzech J. Anim. Sci., 2010, 55(10):428-435 | DOI: 10.17221/1698-CJAS The aim of the study was to analyze the pattern of oviposition time in laying sequences in broiler breeder hens and to determine a relationship between egg position in the sequence and egg quality. The sequences were described using mean oviposition time (hour) within a sequence, mean lag of oviposition time between successive ovipositions, and mean and cumulative lag of oviposition for a sequence. Egg weight, percentage of egg components and shape index were determined for successive eggs in a sequence. The 2-, 3-, 4-, 5- to 6- and 7- to 9-egg sequences were considered. The light/dark regime was 16 h/8 h (05:00 a.m. to 09:00 p.m.). Hens laid the first egg in a sequence about 3.5 h after the beginning of the photoperiod. With increasing sequence length, the first egg was laid sooner after the beginning of the photoperiod and the intervals between successive ovipositions shortened. This suggests that when planning the frequency of egg collection in a flock of broiler breeder hens, one should account for changes in the egg sequence length during the production period. No significant relationship between egg position in the sequence and quality of egg components was observed. |
Upper eyelid and medial canthus reconstructive surgery after histiocytoma resection in a dog: a case reportM. Lew, S. Lew, A. RozickaVet Med - Czech, 2010, 55(3):137-143 | DOI: 10.17221/69/2010-VETMED A six year old crossbred male dog presented with non-pigmented, pale pink, unhaired, ulcerative tumor of the medial canthus and upper eyelid region. As treatment, surgery was proposed. During the surgery complete excision of the tumor was performed. The extent of skin loss, especially in the upper eyelid required plastic reconstruction by pedicle flap transposition. The soft skin of the cheek was chosen as a graft donor site. The postoperative period proceeded without any complications and ended with successful engraftment. The soft cheek skin did not impede movement of the upper eyelid. Histopathological examination indicated histiocytoma and tumor-free excisional margins were confirmed. There has been no recurrence during the subsequent 12 month period. |
Effects of an aerobic training program on oxidative stress biomarkers in bullsB.M. Escribano, I. Tunez, F. Requena, M.D. Rubio, R. De Miguel, P. Montilla, P. Tovar, E.I. AgueraVet Med - Czech, 2010, 55(9):422-428 | DOI: 10.17221/2979-VETMED The aim of this study was to evaluate the effect of aerobic training (16 weeks - T1 and 24 weeks - T2) on oxidative stress biomarkers. To this end, GSH, GSH-peroxidase (GSH-Px) and catalase (CAT) activity were analysed in plasma. Nine bulls (3-4 years), were included in this work. The exercise training protocol was performed in a track ("taurodromo") three days per week for 24 weeks and consisted of 400 m warming up, 1200 m to 4-5 m/s, two minutes' resting, 1200 m to 4-5 m/s and, finally, 400 m walking. The results reflected that GSH-Px activity was higher at T1 (6.18 ± 0.45) than at baseline (T0; 2.31 ± 0.08) while the GSH level (2.98 ± 0.37) was lower vs. T0 (14.59 ± 3.40). Moreover, there were significant increases in GSH-Px (18.23 ± 1.36) and CAT (2.52 ± 0.04) activities and the recovery of basal values in GSH (11.75 ± 2.84) in T2. In conclusion, the type of training carried out in this study involved two well-defined stages: (i) a period of perturbation, followed by (ii) adaptation. The former stage was characterised by the induction of oxidative stress manifested as a decrease in the GSH, and the latter (T2) by the recovery of this non-enzymatic antioxidant. |
Effects of root pruning on the vegetative growth and fruit quality of Zhanhuadongzao treesS. Yang, S. Xing, C. Liu, Z. Du, H. Wang, Y. XuHort. Sci. (Prague), 2010, 37(1):14-21 | DOI: 10.17221/29/2009-HORTSCI The effects of root pruning on the vegetative growth and fruit quality of six-year-old Zhanhuadongzao (Ziziphus jujube Mill.) trees were evaluated. Three root pruning treatments (severe, moderate and light degree) were conducted at the distance of 3, 5 and 7 times trunk diameter from trunk on both inter-row sides of the trees, respectively. The results showed that the severe root pruning decreased the length of primary branch by 27.9% and the number of primary branches by 12.1% in contrast to the control of no root pruning. Compared to the control, both severe and moderate root pruning had no apparent effects on nitrogen, phosphorus and potassium contents of leaves after 35 days, but had significant effects after 161 days. Severe root pruning had larger effectiveness of controlling vegetative growth than the moderate one. By root pruning, the contents of vitamin C and total sugar were increased but the content of cypermethrin was decreased in fruits and no effects were found on total acid content of fruit and yield at harvest. In the rhizosphere soil, root pruning decreased the microbial populations and enzymes activities but increased the concentrations of cypermethrin, available nitrogen, phosphorus and potassium. It is proposed that the removal of root at 3 times trunk diameter distance from trunk was feasible to regulate the vegetative growth and fruit quality of Zhanhuadongzao tree. |
Impact of long term fertilization on soil water content in HaploborollsC.Y. Song, X.Y. Zhang, X.B. Liu, Y.Y. Sui, Z.L. LiPlant Soil Environ., 2010, 56(9):408-411 | DOI: 10.17221/173/2009-PSE Soil water content under no fertilizer (NF), fertilizer (F) (N:30; P2O5: 45 kg/ha), and fertilizer plus pig manure (FO) (N:30; P2O5: 45 kg/ha; pig manure 15 000 kg/ha in 2003; and 30 000 kg/ha in 2004 and 2005) treatments was measured using neutron probe instrument for a period three years in a long term field experiment in order to investigate the impact of different fertilization treatments on Haploborolls soil water content. Fertilization had significant effects on the soil water content. FO treatment had greater soil water content in 10 cm depth than F treatment with average 9.9% increase (P < 0.05) but lower than NF treatment; however, in the depth from 30 to 90 cm, there was no water content difference between F and FO treatments. Treatment with organic amendments reduced total soil water content on the long term experiment basis. Across the three years, no fertilizer treatment had total soil water content higher by 1.2% and 3.1% than fertilizer treatment and fertilizer plus pig manure treatment within 10 to 210 cm soil profile in most of the months, respectively. |
The influence of Picea abies on herb vegetation in forest plant communities of the Veporské vrchy Mts.F. Máliš, J. Vladovič, V. Čaboun, A. VodálováJ. For. Sci., 2010, 56(2):58-67 | DOI: 10.17221/39/2009-JFS Natural mixed beech-fir forests were quite widely replaced by spruce dominated stands in Slovakia. Given the demands on the assessment of the forest status as well as on stopping the biodiversity loss it is required to evaluate the influence of Picea abies (L.) Karst. on the species composition. In a case study from the Veporské vrchy Mts. natural beech dominated forests were compared to stands with different spruce proportion. Within three groups of relevés with no, less and more than a half proportion of Picea abies the species diversity and Ellenberg indicator values were compared. The response of particular species to the proportion of Picea abies was evaluated by partial relation in direct gradient analysis. The increasing spruce proportion causes particularly higher occurrence of acidophytes and a decrease in nitrophytes. Species with the highest positive response to spruce are mostly shallow-rooted or characteristic of natural spruce forests. Greater richness along with the highest diversity was found in mixed stands with less than a half proportion of Picea abies. The most significant difference in species composition was between natural and spruce dominated stands. However the proportion of Picea abies does not reduce the species diversity in general, it causes significant changes in the species composition. As the results show, to avoid the negative effect and loss of phytodiversity it is required not to grow spruce dominated stands out of the natural occurrence of Picea abies. |
Safety and quality of farm fresh goat's cheese in the Czech RepublicBohumíra Janštová, Michaela Dračková, Šárka Cupáková, Hana Přidalová, Markéta Pospíšilová, Renáta Karpíšková, Lenka VorlováCzech J. Food Sci., 2010, 28(1):1-8 | DOI: 10.17221/210/2008-CJFS The composition and selected physical and chemical parameters of 44 samples of fresh goat cheeses produced on a farm in the Czech Republic were determined. The following average values were obtained for the parameters analysed: pH 4.87 ± 0.14, titratable acidity (SH) 98.09 ± 4.93, dry matter 46.83 ± 1.57%, fat in dry matter 52.74 ± 5.24%, sodium chloride (NaCl) 2.08 ± 0.54%, and aw 0.979 ± 0.007. All samples showed excellent sensory characteristics and their compositions corresponded to those declared by the producer. Microbiological tests were used for the detection of Enterobacteriaceae spp., lactic acid bacteria, Escherichia coli, Enterococcus spp., Staphylococcus aureus, Bacillus cereus, Salmonella spp. and Listeria monocytogenes. Under the applicable regulations, the analysed fresh goat's cheeses were microbiologically safe and had the appropriate physical and chemical characteristics. |
Research work on Vitis vinifera ssp. sylvestris in SlovakiaD. Pospíšilová, R. Šimora, D. SekeraCzech J. Genet. Plant Breed., 2010, 46(10):S47-S49 | DOI: 10.17221/989-CJGPB By 2008, twelve localities had been investigated. At each location we assessed the degree of threats to the wild grapevine. Flowering plants were seldom found. The plants found were localized geographically, and 149 vines were described using the characteristics of shoot types and leaves, using the O.I.V. descriptor list. Morphological differences of the leaf shape, hair or bristle density are high. A few seeds which were found in dry black berries are much smaller in size than the seeds of Vitis vinifera ssp. sativa. From plants that were easily attainable, cuttings were taken with the objective to multiply the Vitis sylvestris and to establish an ex situ collection. In 2008, we repeated the procedure with 54 vines. The state of health of the vines in situ is very good. No fungal diseases were visible, and mites occurred only rarely. In the nursery, some plants were contaminated by mildew. |
The effect of lycopene supplementation on lipid profile and meat quality of broiler chickensS. Ševčíková, M. Skřivan, G. DlouháCzech J. Anim. Sci., 2008, 53(10):431-440 | DOI: 10.17221/350-CJAS An experiment was conducted to determine the effect of lycopene on lipid profile and quality of meat of broiler chickens Ross 308 at a different form of selenium. 540 broiler cockerels were randomly divided into 6 groups: without lycopene supplement (groups C and E3), supplemented with 50 mg/kg lycopene (groups E1 and E4), supplemented with 100 mg/kg lycopene (groups E2 and E5) while the source of selenium was sodium selenite (groups C, E1, E2) and Se-enriched yeast (groups E3, E4, E5). The experimental period was from 14 to 35 days of broiler age and was terminated by slaughter. The organic form of dietary selenium increased (P ≤ 0.05) its content in breast meat (E3 - 174.2 μg/kg, E4 - 186.4 μg/kg, E5 - 191.9 μg/kg) compared to selenite (C - 125.4 μg/kg, E1 - 123.3 μg/kg, E2 - 128.5 μg/kg). The shear force of meat was higher (P ≤ 0.05) in groups receiving the organic form of Se (E3 - 0.026 kN, E4 - 0.025 kN, E5 - 0.024 kN) in comparison with group C (0.017 kN), E1 (0.016 kN) and E2 (0.014 kN). Se in Se-enriched yeast reduced (P ≤ 0.05) the concentration of malondialdehyde in breast meat after 5 days of storage. There were no significant differences in concentrations of cholesterol, LDL cholesterol and lipase in plasma. The higher content of HDL cholesterol in plasma was recorded in groups supplemented with 50 mg of lycopene, followed by groups with 100 mg of lycopene and the lowest values were measured in groups without lycopene supplementation when the difference between group E1 (1.64 mmol/l) and E3 (1.51 mmol/l) was significant (P ≤ 0.05). Concentrations of LDL cholesterol showed an opposite trend. The lycopene supplement had a positive effect on the lipid profile of blood plasma of broiler chickens. |
The influence of litter age, litter temperature and ventilation rate on ammonia emissions from a broiler rearing facilityM. Knížatová, Š. Mihina, J. Brouček, I. Karandušovská, J. MačuhováCzech J. Anim. Sci., 2010, 55(8):337-345 | DOI: 10.17221/176/2009-CJAS The research reported in this article attempts to address the ammonia problem by quantifying the effect of several variables on ammonia concentrations and emissions. These variables include litter temperature, litter age and ventilation rate. Data was collected in a commercial tunnel-ventilated grow-out facility with deep litter, designed for 25 000 broilers, during 6 consecutive flocks. Birds were housed from hatching to approximately 40 days of age. Litter temperature and litter age were positively correlated (P < 0.0001) with the production of ammonia gas. The amount of ammonia emissions increased with the litter age (P < 0.0001) as a consequence of both the increased ammonia concentration and the ventilation rate (P < 0.0001). The lowest concentrations of NH3 were observed in a "summer" period, although ammonia emissions tended to be higher just in summer months because of a higher ventilation rate. The elevated levels of ammonia in winter were attributed to the lower ventilation rate during cold weather. After the evaluation of ammonia emissions it can be concluded that during the grow-out period of broilers kept on renewed litter there is an average loss of 6.18 g ammonia per bird and/or 0.043 kg of ammonia per bird yearly. The increase in litter temperature during grow-out periods is a process which could be controlled to prevent excessive ammonia volatilization from housing facilities. |
Macroanatomy of the cranial cervical ganglion in Angora goatsH.H. Ari, Z. Soyguder, S. CinarogluVet Med - Czech, 2010, 55(8):389-393 | DOI: 10.17221/2952-VETMED The cranial cervical ganglia (CCG) in the heads of six adult (three male and three female) Angora goats were dissected in detail. The ganglion was located on the ventral aspect of the tympanic bulla, cranio-ventral to the atlas, medio-ventral to the jugular process and lateral to the longus capitis muscle. The branches of the ganglion were the internal and external carotid nerves, the jugular and laryngopharyngeal nerves and the connecting branches to the vagus and glossopharyngeal nerve. The internal carotid nerve arose as three branches (cranial, caudal and medial) from the cranial region of the ganglion. The cranial branch, the profound petrosal nerve, entered the pterygoid canal. The caudal branch terminated at the trigeminal ganglion. The medial branch terminated at the cavernous sinus. The other cranial branch ramifying from the cranial region of the ganglion was the jugular nerve. The internal carotid and laryngopharyngeal nerves arose from the caudal region of the ganglion. In conclusion, compared with published data on other species, we found differences in the number and courses of the branches ramifying from the CCG of Angora goats and in the branches connected to the vagus, glossopharyngeal and hypoglossal nerves. |
Effect of salinity stress on mycorrhizal association and growth response of peanut infected by Glomus mosseaeA.S. Al-KhalielPlant Soil Environ., 2010, 56(7):318-324 | DOI: 10.17221/204/2009-PSE Arbuscular mycorrhiza is a mutualistic association between fungi and higher plants, and play a critical role in nutrient cycling and stress tolerance. However, much less is known about the mycorrhiza-mediated enhancement in growth and salinity tolerance of the peanuts (Arachis hypogaea L.) growing in the arid and semi-arid areas. Therefore, mycorrhizal status of Glomus mosseae in diverse salinity levels on original substrate soil conditions was investigated. Different growth parameters, accumulation of proline content and salt stress tolerance were studied. These investigations indicated that the arbuscular mycorrhizal fungi could improve growth of peanuts under salinity through enhanced nutrient absorption and photosynthesis. Chlorophyll content and leaf water content were increased significantly under salinity stress by the inoculation with mycorrhizal fungi. Tolerance of the plants to salinity was increased and the mycorrhizal association was found highly effective in enhancing peanut growth and establishment in soils under salinity and deficient in phosphorus. |
Effects of drainage treatment and stand growth on changes in runoff components from a forested watershedV. Černohous, F. Šach, D. KacálekJ. For. Sci., 2010, 56(7):307-313 | DOI: 10.17221/103/2009-JFS Runoff generation under various natural conditions has often been studied in forested watersheds for a long time. In 1967, Hewlett designed a variable source area model. The model is based on the expansion and shrinkage of variable source areas and consequent changes in a drainage network during a discharge event. The runoff investigation was carried out in a forested watershed situated in the summit area of the Orlické hory Mts. The watershed has a drainage area of 32.6 ha with the land-surface elevation ranging from 880 to 940 m a.s.l. Runoff components, their amounts and ratios were calculated using a simple graphical-mathematical method of the hydrograph recession limb analysis according to a reservoir model representing the particular components (base flow, subsurface flow and overland flow, in other words slow, accelerated and rapid flows). Comparing the amount of slow and rapid runoff constituents (89.5-99.4% and 0.6-10.5%, respectively), the greater amount of slowly moving water confirmed that overland flow was absent under conditions of forest environment. Not even the drainage treatment altered this positive ratio of the runoff constituents. During the third period, under stabilized hydrology and stand conditions, the accelerated and rapid runoff increased again, however maximally by 10% and 4%, respectively, not reaching the initial size of the calibration period. |
Antimicrobial and antioxidant properties of phenolic acids alkyl estersRoman Merkl, Iveta Hrádková, Vladimír Filip, Jan ŠmidrkalCzech J. Food Sci., 2010, 28(4):275-279 | DOI: 10.17221/132/2010-CJFS Some phenolic acids alkyl esters (methyl, ethyl, propyl, butyl and hexyl) and determine their antioxidant and antimicrobial activities were prepared. The antimicrobial activity against the tested microorganisms Escherichia coli DMF 7503, Bacillus cereus DMF 2001, Listeria monocytogenes DMF 5776, Fusarium culmorum DMF 0103, and Saccharomyces cerevisiae DMF 1017 was investigated and expressed by minimum inhibitory concentration (MIC) in the range of 1.2-20mM. The inhibitory activity of phenolic acids butyl esters was found to be higher than that of methyl esters (MIC below 1.25mM). The antioxidant activity of the selected phenolic acids alkyl esters was investigated by Rancimat method. The esters of 3,4-dihydroxyphenolic acids (protocatechuic and caffeic acids) exhibited higher antioxidant activities in comparison with the respective phenolic acids. The highest antioxidant activity was found in the case of caffeic alkyl esters. |
Landraces and obsolete cultivars of minor wheat species in the czech collection of wheat genetic resourcesZ. Stehno, J. Bradová, L. Dotlačil, P. KonvalinaCzech J. Genet. Plant Breed., 2010, 46(10):S100-S105 | DOI: 10.17221/2664-CJGPB The proportions of landraces in the Czech collection of wheat genetic resources significantly differentiates among wheat species, 4.2% in bread, 77.6% in emmer, and 80.0% in the einkorn wheat collections. A set of 10 selected emmer wheat landraces has been characterized by high molecular weight glutenin subunits (HMW-GSs). They were evaluated for 3 years in field trials, and described by grain quality parameters. Emmer wheat accessions differ considerably in the polymorphisms of HMW-GSs. Out of the total of 10 studied emmer wheat landraces, 5 accessions appeared to be homogeneous in the electrophoretic patterns of HMW-GSs; they were formed by a single glutenin line. Much higher crude protein content was detected in all of the emmer wheat accessions, in comparison with the control bread wheat cultivar. The proportion of this important component varied between 15.5% and 22.2%. On the other hand, SDS sedimentation, an important parameter of bread making quality, was very low (1.2-4.4 ml); and a similar situation has been recorded in the gluten index. Based on such results, the emmer wheat landraces can be considered potentially more suitable for other purposes than for the preparation of bread (e.g. for different grain mixtures, purée, etc.). |
