beef cattle feedlot manure
nitrous oxide fluxes from a commercial beef cattle feedlot in kansas
... levels of N2O emission from commercial beef cattle feedlots.14 The main purpose of this study was to examine emission rates of N2O from commercial beef cattle feedlots as affected by pen surface ... Soil /manure temperature (°C) Sample size Soil /manure water content (cm cm ) −3 Soil /manure NO3 − content (ppm) Soil /manure NH4 content (ppm) + Soil /manure total carbon content (%) Soil /manure ... Methods Feedlot description This study was conducted at an open beef cattle feedlot in the state of Kansas, USA, from June 2010 through September 2011 During the measurement period, in the feedlot...
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Dự án nông nghiệp " Nghe An Province Sustainable Village Based Beef Cattle Development, Training and Extension Programme " - Project Progress Report SECOND SIX-MONTHLY REPORT pdf
... M.Peters@massey.ac.nz Project Abstract The Beef Cattle Development Plan for 2010 (No1155/QD-UB Nghe An) was introduced in May 2003 The plan set objectives to increase beef production, use crossbreeding ... farmers cattle have been ear tagged and liveweights (LWT) recorded to provide a base situation The animal pedigrees have been collected (where known) and recorded for future updating A new beef cattle ... slowly being resolved with cattle arriving in October 2007 However, the company still has to demonstrate that it has the ability to manage a modern nucleus herd of beef cattle Communication with...
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Nghiên cứu khoa học nông nghiệp " Nghe An Province Sustainable Village Based Beef Cattle Development, Training and Extension Programme - Milestone 3 " pot
... (Sindhi) cattle, rather than development of a cattle breed for beef production The Sindhi cattle programme has been successful and the (Sinh x local) cattle can form a very good base for a beef industry ... cattle breed for beef production The Sindhi cattle programme has been successful and the (Sinh x local) cattle can form a very good base for a beef industry The Sindhi x local cattle have improved ... District Population No Families Land Area Families with beef cattle Average No of cattle Village Technicians Technicians Average price of cattle Associations Poverty Line General Secretary (also...
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Nghe An Province Sustainable village based beef cattle development Training and Extension Programme pot
... No Families 800 (80% agricultural worker) Families with beef cattle 160 families have beef cattle (total 400) 600 buffalo Average No of cattle 2.5 (lto 20) Village Divided into five sections (sub-villages) ... cattle breed for beef production The Sindhi cattle programme has been successful and the (Sinh x local) cattle can form a very good base for a beef industry The Sindhi x local cattle have improved ... country Many households raise a few cattle and in the Province there has been successful cross breeding of the small framed local yellow cattle with Indian Sinh cattle Cattle nutrition is seen as a...
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Dự án nông nghiệp " Nghe An Province Sustainable Village Based Beef Cattle Development, Training and Extension Programme " MS5 docx
... An Province, sustainable village based beef cattle development, training and extension project Vietnamese Institution 19 May Fruit & Vegetable Co; and Bavi Cattle and Forage Research Centre Vietnamese ... toanhoangq@yahoo.com 2 Project Abstract The Beef Cattle Development Plan for 2010 (No1155/QD-UB Nghe An) was introduced in May 2003 The plan set objectives to increase beef production, use crossbreeding ... improve small holder incomes An increase in nutrient levels of beef cattle are essential if productivity is to increase and improved cattle genetics are to be sustained and profitable The project...
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Dự án nông nghiệp " Nghe An Province Sustainable Village Based Beef Cattle Development, Training and Extension Programme " MS7 ppt
... each mature breeding cow Cattle Ownership: Farmers approach to beef cattle production systems is very different to a western “commercial” model Vietnamese farmers see cattle rearing as a “family ... to-date are: (1) Sale of 60% cattle to build a new house (2) Sale of 40% cattle to build a small shop (3) Sale of 50% cattle to invest in a petrol station (4) Sale of 50% cattle so son could get married ... Lack of Stable Market: The beef cattle market is poorly developed in the area with all farmers selling their cattle to a small local slaughter or middle man Very few cattle are reared to a full...
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Dự án nông nghiệp " Nghe An Province Sustainable Village Based Beef Cattle Development, Training and Extension Programme " Milestone 10 pdf
... of 60% cattle to build a new house Sale of 40% cattle to build a small shop Sale of 50% cattle to invest in a petrol station Sale of 50% cattle so son could get married Sale of 100% of cattle ... Pasture & Farming Systems Beef Production W/S Presenter 14 14 15 5 4 10 10 15 12 30 25 34 26 26 14 12 Beef Production 22 18 4 Beef Production 22 18 4 Beef Production 22 18 4 Beef Production Final ... each mature breeding cow Cattle Ownership: Farmers approach to beef cattle production systems is very different to a western “commercial” model Vietnamese farmers see cattle rearing as a “family...
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Báo cáo nghiên cứu nông nghiệp " Enhancing Tropical Beef Cattle Genetics, Reproduction and Animal Breeding Skills " pdf
... Vu chi Cuong NIAH Cattle Production Pham Kim Cuong NIAH Cattle Production Thanh NIAH Cattle Production Nguyen Trung Nguyen Xuan Hoa NIAH Cattle Production Pham Hung Cuong NIAH Cattle Production ... report their own 'extension' material (See Appendix G) QDPI's "Beef Cattle Performance in Northern Australia" publication (Beef Cattle Research) was used as a model for the Vietnamese to collate ... knowledge/information in beef cattle genetics, breeding and reproduction as applied to tropical beef industry supply chain systems, that is, seedstock producers, commercial producers, feedlots, pasture...
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Báo cáo khoa học: "Detection of Cadmium in Mineral Salt Commercial Mixtures for Beef Cattle" pdf
... 35 Colombo 3.0 36 Catanduvas 5.2 Detection of Cadmium in Mineral Salt Commercial Mixtures for Beef Cattle 143 NRC = National Research Council AAFCOI = Association of Am erican Feed Control Officials ... l, W S.; Ga ste , L.; Libon i, M.; et al Lead Concentration in mineral salt mixtures used in beef cattle food supplementation in Brazil Veterinarski Arhiv, Croatia 69(6), 349-355, 1999 14 Marçal, ... Press Orlando pp 182-186, 1985 18 N atio n al Re se a rch Co u n cil Nutrient requirements of beef cattle National Research Council Subcommittee on Mineral Toxicity in Animals National Academy...
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Báo cáo khoa học: "Levels of lead in mineral salt commercial mixtures for beef cattle" ppt
... states, are presented in Table 1, and Fig Levels of lead in mineral salt commercial mixtures for beef cattle 237 Discussion Concern about mineral formulations contaminated by metallic elements and/or ... pp 182-186, Academic Press Orlando 1985 14 National Research Council Nutrient requirements of beef cattle National Research Council Subcommittee on Mineral Toxicity in Animals p 234, National ... I., Lazar, L., Dietzova, I Residues of heavy metals in cow reproductive organs and morbidity of cattle in the fallout region of a metallurgical plant Vet Med ñ Czech, 1998, 43, 283-287 11 Marçal,...
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Báo cáo khoa hoc:" Genetic diversity measures of local European beef cattle breeds for conservation purposes" pptx
... beef cattle breeds 313 to genetic diversity of 18 local cattle breeds from Spain, Portugal, and France using 16 microsatellites (15 of which are from the FAO list) MATERIALS AND METHODS 2.1 Cattle ... Barrosa, Maronesa and Alentejana block Genetic diversity of local beef cattle breeds 323 Figure Tree of relationships among 18 local cattle breeds Values in brackets represent the loss of diversity ... 1995 Genetic diversity of local beef cattle breeds 331 [35] Moazami-Goudarzi K., Laloở D., Furet J.P., Grosclaude F., Analysis of genetic relationships between 10 cattle breeds with 17 microsatellites,...
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Báo cáo sinh học: "Population analysis of a purebred Hereford and a multibreed synthetic beef cattle herd" docx
... commercial beef cattle herd J Anim Sci 61, 44-54 Sharma AK, Willms L, Hardin RT, Berg RT (1985) Selection response in a purebred Hereford and a multi-breed synthetic population of beef cattle Can ... (HE) and the Beef Synthetic The history of the ranch and the formation of the breeding populations have been reported in detail by Berg (1980) The Beef Synthetic population was renamed Beef Synthetic ... the cows were reported by Arthur et al (1993) There is very little information available for beef cattle on the effect, over time, of such a stringent culling policy on population parameters...
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Báo cáo sinh học: " Expected efficiency of selection for growth in a French beef cattle breeding scheme. I. Multistage selection of bulls used in artificial insemination" docx
... objectives for Australian beef cattle production Anim Prod 49, 35-47 Renand G, Plasse D, Andersen BB (1992) Genetic improvement of cattle growth and carcass traits In: Beef Cattle Production (R Jarrige, ... preweaning performance in beef cattle Can J Anim Sci 51, 561-577 Lalo6 D, M6nissier F (1990) Applications of an animal model on a national basis in the French beef cattle industry 4th World Congr ... improvement of beef cattle in New Zealand: breeding objective Livest Prod ,S’ci 32, 111-130 Phocas F, Colleau JJ, M6nissier F (1995) Expected efficiency of selection for growth in a French beef cattle...
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Báo cáo sinh học: "Expected efficiency of selection for growth in a French beef cattle breeding scheme. II. Prediction of asymptotic genetic gain in a heterogeneous population" docx
... instance, beef cattle breeding programs account for main tiers in the pyramid: a selection nucleus at the apex and a base commercial population, with a downward gene flow In French beef cattle breeding ... the inclusion in the model of other beef traits ( eg, feed efficiency and carcass quality) and maternal performance (eg, fertility and ease of calving) Beef cattle breeding schemes can be efficient ... French beef cattle breeding scheme : I Multistage selection of bulls used in artificial insemination Genet Sel Evol 27, 149-170 Renand G, Plasse D, Andersen BB (1992) Genetic improvement of cattle...
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Báo cáo sinh học: "The effect of improved reproductive performance on genetic gain and inbreeding in MOET breeding schemes for beef cattle" pot
... increasing genetic gain has been widely studied in dairy cattle (see review by Dekkers, 1992; Ruane and Thompson, 1991) and to a lesser extent in beef cattle (Land and Hill, 1975; Gearheart et al, 1989; ... investigate different strategies for controlling rates of inbreeding in MOET breeding schemes for beef cattle With current values of parameters describing success rates of reproductive technologies, ... METHODS Description of simulations The stochastic model to simulate a MOET nucleus scheme for beef cattle has been described in detail by Villanueva et al (1994) The trait under selection was...
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Báo cáo y học: "Anthrax outbreak in a Swedish beef cattle herd 1st case in 27 years: Case report" ppsx
... estimated to 1-14 days in natural infection of cattle [4] The infectious dose also depends on host species and route of infection and estimates vary [4] Cattle may be difficult to infect by the parenteral ... doi:10.1186/1751-0147-52-7 Cite this article as: Lewerin et al.: Anthrax outbreak in a Swedish beef cattle herd - 1st case in 27 years: Case report Acta Veterinaria Scandinavica 2010 52:7 Submit ... practised in many of these areas The susceptibility to infection varies among host species, with cattle and sheep being the most susceptible, followed by goats and horses, humans are regarded as...
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Báo cáo thú y: "Spatial patterns of Bovine Corona Virus and Bovine Respiratory Syncytial Virus in the Swedish beef cattle population" pdf
... possible high risk areas for BCV and BRSV infections in the beef cattle population in Sweden, and further to explore whether a high beef herd-density was a risk factor for higher seroprevalences ... collected annually from beef herds Between November 2006 and May 2007, every 12th blood sample was systematically selected for an investigation of Neospora caninum in Swedish beef cattle [20] The same ... corresponding to approximately 20% of all beef herds present in the country at this time The sample was considered to be representative of the Swedish beef cattle population, as it was issued from...
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Báo cáo sinh học: "Inbreeding depression on beef cattle traits: Estimates, linearity of effects and heterogeneity among sire-families" ppsx
... indicate an unfavorable effect of inbreeding on most of the beef cattle traits analyzed For illustration purposes, Inbreeding depression on beef cattle traits 523 we can consider the expected results ... [25] and Gulisija et al [15] in dairy cattle, who have also reported differences among founder families in inbreeding depression Inbreeding depression on beef cattle traits 525 The magnitude of ... beef cattle, Anim Breed Abstr 61 (1993) 737–751 [3] Caraviello D.Z., Weigel K.A., Gianola D., Analysis of the relationship between type traits, inbreeding, and functional survival in Jersey cattle...
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Báo cáo sinh học: "Connectedness among herds of beef cattle bred under natural service" pot
... be used as a reference for other beef cattle breeds, which are almost exclusively bred by natural service Materials and methods Data Data of the on-farm beef cattle evaluation for the Bruna dels ... among beef herds are likely Herd sizes are generally small, relative to other livestock species, and artificial insemination (AI), an effective tool for connecting herds of other beef and dairy cattle, ... connectedness These statistics have been used to measure connectedness in dairy cattle [11], swine [9,12,13], and beef cattle [14] However, CD was found to combine data structure and amount of information...
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Báo cáo sinh học: " Carcass conformation and fat cover scores in beef cattle: A comparison of threshold linear models vs grouped data models" docx
... for Swedish beef cattle Livest Prod Sci 2003, 84:53-62 Hickey JM, Keane MG, Kenny DA, Cromie AR, Veerkamp RF: Genetic parameters for EUROP carcass traits within different groups of cattle in Ireland ... Weibull model, and a grouped data model for the analysis of carcass conformation and fat cover in beef cattle The three threshold linear models were a model with slaughterhouse and sex effects, along ... heterogeneous thresholds for subjective traits: Fat cover and conformation score in the Pirenaica beef cattle J Anim Sci 2009, 87:1210-1217 Ducrocq V: Survival analysis, a statistical tool for longevity...
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