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Registros recuperados: 389
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Fed Cattle Forward Contract Volume and Basis Relationship AgEcon
Abahana, Zelalem; Diersen, Matthew A.; Li, Jing; Klein, Nicole L..
The poster covers analysis and models of forward contracting during the contracting period. A conceptual model is presented to explain how contracting patterns relate to industry factors and negotiation power of buyers and sellers. Time series techniques are used to model basis, weekly volume, and total volume. Forecasting models are also presented.
Tipo: Conference Paper or Presentation Palavras-chave: Cattle; Forward contract; Basis; Negotiation; Placements; Agribusiness; Demand and Price Analysis; Livestock Production/Industries.
Ano: 2010 URL: http://purl.umn.edu/61150
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A Limited Information Bayesian Forecasting Model of the Cattle SubSector AgEcon
Abidoye, Babatunde O.; Lawrence, John D..
The first step towards forecasting the price and output of the cattle industry is understanding the dynamics of the livestock production process. This study follows up on the Weimar and Stillman (1990) paper by using data from 1970 to 2005 to estimate the parameters that characterizes the cattle output supply. The model is then used to estimate forecast values for the periods 2006 and 2007. Bayesian limited information likelihood method is used to estimate the parameters when endogeneity exists between these variables. The forecasting ability of the model for a two-step ahead forecast for majority of the variables are relatively good and test statistic of the forecast are reported.
Tipo: Conference Paper or Presentation Palavras-chave: Cattle; Bayesian; Forecasting; Inventory; Slaughter; Agribusiness; Agricultural Finance; Financial Economics; Livestock Production/Industries; Marketing; Production Economics; Research Methods/ Statistical Methods.
Ano: 2009 URL: http://purl.umn.edu/53051
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Determinants of Market Prices of Cattle in Eastern Ethiopia AgEcon
Adugna, Teressa.
This study has attempted to identify determinants of cattle price per kilogram live weight using a log-linear regression model. The estimated model explains about 48% of the variation in market prices of cattle. Price per kilogram live weight of cattle increases with animal characteristics such as age, live weight and grade. Type of sellers, buyers' purposes, festivals, time of transaction and a time trend are also important variables in affecting cattle prices. Farmers tend to sell their animals at price discounts as compared to trader sellers. Cattle sellers suffer from price discounts in selling to buyers with business purposes in comparison to selling to ultimate consumers. Sellers tend to benefit from animal sales during festivals, as they tend to...
Tipo: Conference Paper or Presentation Palavras-chave: Cattle; Price variation; Live weight; Animal characteristics; Market characteristics; Eastern Ethiopia; Livestock Production/Industries.
Ano: 2006 URL: http://purl.umn.edu/25336
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Uso de modelos matematicos de simulacao para estabelecimento de prioridades de pesquisa. Infoteca-e
AFFIN, O. A. D.; BARCELLOS, J. M.; LUIZ, A. J. B.; SILVA, F. A. M.; RODRIGUEZ CASTRO, L. H.; ZOBY, J. L. F..
bitstream/item/101483/1/doc-49.pdf
Tipo: Documentos (INFOTECA-E) Palavras-chave: Agropecuaria; Prioridade; Simulation.; Cerrado; Modelo Matemático; Pesquisa; Simulação.; Agriculture; Cattle; Research.; Mathematical models.
Ano: 1992 URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/549460
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Modelos matematicos de simulacao e a dinamica populacional de rebanho bovino. Infoteca-e
AFFIN, O. A. D.; SANTOS, N. A. dos; BARCELLOS, J. M..
bitstream/item/101496/1/doc-57.pdf
Tipo: Documentos (INFOTECA-E) Palavras-chave: Agropecuaria; Simulation.; Bovino; Dinâmica Populacional; Modelo Matemático; Pesquisa; Simulação.; Agriculture; Cattle; Mathematical models; Population dynamics; Research..
Ano: 1994 URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/549101
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Seroprevalencia y factores de riesgo asociados a brucelosis (Brucella abortus) en ganadería bovina de la zona sur de Veracruz, México. Colegio de Postgraduados
Aguilar Ballesteros, Gerardo.
El propósito del estudio fue estimar la seroprevalencia y factores de riesgo asociados a brucelosis bovina en la zona sur de Veracruz, México. Mediante un estudio epidemiológico de tipo transversal a través de un muestreo serológico de ganado bovino. La seroprevalencia se evaluó aplicando las pruebas de Tarjeta o Rosa de Bengala y Rivanol. Se realizó una encuesta por animal y por hato, generando dos bases de datos de los 12 municipios evaluados. Los resultados obtenidos mediante las pruebas de Tarjeta y Rivanol indican una seroprevalencia general del 0.187% (2/1066) para la zona sur de Veracruz, de igual manera, se estimó un 2.4% (2/85) de hatos con ganado positivo a brucelosis. No fue posible el cálculo de factores de riesgo en este estudio a causa de la...
Palavras-chave: Brucelosis; Bovinos; Seroprevalencia; Factores de riesgo; Abortos; Salud animal; Brucellosis; Cattle; Seroprevalence; Risk factors; Abortions; Animal health; Agrosistemas Tropicales; Maestría.
Ano: 2010 URL: http://hdl.handle.net/10521/547
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Interval between first dose and booster affected antibody production in cattle vaccinated against rabies J. Venom. Anim. Toxins incl. Trop. Dis.
Albas,A.; Fontolan,O. L.; Pardo,P. E.; Bremer Neto,H.; Sartori,A..
In this study, we compared the levels of neutralizing antibodies induced by inactivated rabies vaccine in cattle by using three alternative immunization procedures. Forty-five bovines (breed nelore) were then organized in three groups (A, B and C, with 15 animals/group). Group A received only one vaccine dose at day zero and Group B received the first dose at day zero and then another dose at day 30 (early booster). Group C was also immunized with two doses; however, the booster was postponed until day 180 after the first dose (delayed booster). Blood samples were withdrawn at days zero (before the first dose) and 30, 210, 390, and 540 after the beginning of immunization and the antibody titers were evaluated by mouse neutralization test. The protocol used...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Rabies; Vaccine; Cattle; Antibody; Neutralization.
Ano: 2006 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1678-91992006000300010
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Uso do bagaço de tomate na alimentação de animais. Infoteca-e
ALMEIDA, G. F. de.
Verificou-se que o bagaco de tomate apresentou um conteudo de proteina bruto de 18 e 19% permitindo classificar como um residuo de concentrado proteico basico.
Tipo: Comunicado Técnico (INFOTECA-E) Palavras-chave: Tomato; By-product.; Alimentação; Animal; Bagaço; Tomate.; Cattle; Nutrition..
Ano: 1992 URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/131439
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Brucelose e tuberculose bovina: epidemiologia, controle e diagnóstico. Infoteca-e
ALMEIDA, R. F. C. de; SOARES, C. O.; ARAÚJO, F. R. de.
Cap. 1: Brucelose bovina: epidemiologia e controle. Cap. 2: Brucelose bovina: diagnóstico. Cap. 3: Tuberculose bovina: epidemiologia e controle. Cap. 4: Tiberculose bovina: diagnóstico.
Tipo: Livro técnico (INFOTECA-E) Palavras-chave: Controle; Diagnosis; Control.; Bovino; Brucelose; Diagnostico; Doença Animal; Epidemiologia; Sanidade Animal; Tuberculose.; Animal health; Animal diseases; Epidemiology; Brucellosis; Cattle; Tuberculosis..
Ano: 2004 URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/325789
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Methods of inducing conditioned food aversion to Baccharis coridifolia (mio-mio) in cattle Ciência Rural
Almeida,Milton Begeres de; Schild,Ana Lucia; Pfister,James; Pimentel,Marcelo; Forster,Karine Maciel; Correa,Franklin Riet.
Three experiments were performed to determine the efficacy of various methods of averting naïve cattle to prevent Baccharis coridifolia poisoning: forced oral administration of 0.5g kg-1 body weight of fresh B. coridifolia; forced inhalation of the smoke from burning B. coridifolia and rubbing the plant on the animals' muzzles and mouths; and introducing the animals into paddocks with low invasion by B. coridifolia. Results demonstrated that cattle forced to ingest low doses become strongly averted if introduced into paddocks 23-26 hours after the aversion. In contrast, cattle introduced into the paddocks between 1-10 hours were not fully averted. Inhalation of B. coridifolia smoke, and rubbing the plant on the animals' muzzles and mouths were not...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Baccharis coridifolia; Cattle; Food-conditioned aversion; Plant poisoning control.
Ano: 2013 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-84782013001000022
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Endocrine profiles and ovulation rate of cows superovulated with FSH following passive immunization against steroid free-bovine follicular fluid Braz. J. Vet. Res. Anim. Sci.
ALVAREZ,Rafael Herrera; CARVALHO,João Batista Pereira de; ROSA E SILVA,Alzira; PERONE,Cibele Nunes; RIBELA,Maria Tereza Carvalho Pinto; OLIVEIRA FILHO,Enoch Borges de.
Ten multiparous non-lactating cows were randomly assigned to one of two groups. On days 8 to 12 after estrus, the first group was given 100 ml antiserum against steroid-free bovine follicular fluid (anti-bFF), which was produced in ovariectomized sheep. The second group (control) was given 100 ml nonimmune ovariectomized sheep serum. Six hours after injection, both groups were superovulated with FSH (18 NIH-FSH-S1 units) and LH (0.29 NIH-LH-S1 units) in a 4-day decreasing regime. On the morning of the third day a luteolytic dose of prostaglandin F2alpha analogue (cloprostenol) was given. Artificial inseminations (AI) were done 48 and 60 h later. Embryos were collected 7 days after AI by a nonsurgical method. Blood samples were taken throughout the...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Superovulation; Follicular fluid; Passive immunization; Embryos; Cattle.
Ano: 1998 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1413-95961998000600007
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Management Production Systems and Timing Strategies for Cull Cows AgEcon
Amadou, Zakou; Ward, Clement E.; Raper, Kellie Curry; Cook, Billy; Biermacher, Jon T..
Replaced with revised version of paper 06/04/09.
Tipo: Conference Paper or Presentation Palavras-chave: Cattle; Cull cows; Management; Marketing; Production systems; Timing; Farm Management; Marketing.
Ano: 2009 URL: http://purl.umn.edu/46593
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Chromosome analysis in cattle and horses Braz. J. Vet. Res. Anim. Sci.
AMARANTE,Mônica Regina Vendrame; TSURIBE,Patrícia Miyuki; JORGE,Wilham; ROCHA,Gilberto Pedroso da.
We analyzed the chromosomes of 117 cows of different breeds for the identification of centric fusion and the chromosomes of 100 young Andaluz and Brasileiro de Hipismo mares for the identification of 63,X lines, using the technique of X chromosome identification based on interstitial heterochromatin on the long arm.
Tipo: Info:eu-repo/semantics/report Palavras-chave: Cattle; Horse; Chromosome.
Ano: 2000 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1413-95962000000400006
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การประเมินคุณค่าทางโภชนะและคาร์โบไฮเดรตในรูปน้ำตาลที่ละลายได้ของเศษเหลือจากสับปะรด Thai Agricultural
Anan Chaokaur; Yaniga Laikhonburi; Chotirod Kunmee; Chawanrat Santhong; Supawadee Chimthong.
The objective of this study was to determine nutritive value and sugar soluble carbohydrate ofpineapple residue. Six treatments were (1) fresh pineapple peel, (2) composted pineapple peel, (3) grind composted pineapple peel, (4) pineapple pulpmeal, (5) pineapple leaf, and (6) pineapple crown. The experiment was conducted in completely randomized design. The results were shown that structural carbohydrate was higher in pineapple peel than pineapple pulp, crown and leaf. Fat content was highest in pineapple leaf. Soluble sugar carbohydrate was higher in pineapple leaf and pulp. In conclusion, pineapple leaf and pulp have potential of being roughage source for dairy and beef cattle.
Tipo: PhysicalObject Palavras-chave: Pineapple peel; Pineapple residue; Animal feeding; Cattle; Nutritive value; Carbohydrate sugar; สับปะรด; เศษเหลือจากสับปะรด; อาหารสัตว์; อาหารหยาบ; โคนม; โคเนื้อ; คุณค่าอาหารสัตว์; การวิเคราะห์องค์ประกอบทางเคมี; ปริมาณคาร์โบไฮเดรต; ค่าน้ำตาล; ค่าไขมัน.
Ano: 2014 URL: http://anchan.lib.ku.ac.th/agnet/handle/001/5749
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ESTIMATED IMPACT OF NON-PRICE COORDINATION OF FED CATTLE PURCHASES ON MEAT PACKER PROCESSING COSTS AgEcon
Anderson, John D.; Trapp, James N.; Fleming, Ronald A..
Stochastic simulation of daily slaughter level was used in conjunction with an estimated packing plant cost curve to assess potential reductions in processing costs due to improved vertical coordination between feedlots and packing plants. Results indicate that processing cost reductions of $1 to $5 per head may be possible. Savings result from ensuring a more stable processing volume that is near the plant's cost-minimizing level of production.
Tipo: Journal Article Palavras-chave: Cattle; Cost curve; Meat packing; Vertical coordination; Industrial Organization; Livestock Production/Industries.
Ano: 2003 URL: http://purl.umn.edu/14668
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Intraocular pressure measurements with the Tono-Pen XL® and Perkins® applanation tonometers in horses and cattle Ciência Rural
Andrade,Silvia Franco; Palozzi,Rodrigo de Jesus; Rolim,Rodrigo Duarte; Junqueira,José Ricardo Cecílio; Valle,Heloisa Ferreira do; Silva,Marcelo Kurak da; Maia,Marcelo Augusto; Zampiere,Rodrigo Augusto.
The objective of this study was to compare the accuracy between two applanation tonometers, Tono-Pen XL® and Perkins®, in horses and cattle. The eyes of 20 horses and 20 cattle conscious and healthy were evaluated for the in vivo study and both eyes of 5 horses and 5 cattle were used as controls for the postmortem study. In conscious animals, the tonometry was performed with auriculopalpebral nerve block and then topical anesthesia for both tonometers and 1% fluorescein eye drops only for the Perkins tonometer. Readings of intraocular pressure (IOP) in the postmortem study were taken using manometry and tonometry by Tono-Pen XL® and Perkins®. The correlation coefficient (r²) between manometry and applanation tonometers Tono-Pen XL® and Perkins®, in horses,...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Applanation tonometer; Cattle; Horses; Perkins tonometer; Tono-Pen XL tonometer.
Ano: 2013 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-84782013000500018
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Neosporose: um possível problema reprodutivo para o rebanho bovino. Infoteca-e
ANDREOTTI, R..
Neospora. Neosporose em bovinos. Diagnóstico. Prevenção.
Tipo: Documentos (INFOTECA-E) Palavras-chave: Nospora; Brasil.; Bovino; Neosporose; Neospora Caninum; Sanidade Animal.; Reprodução; Animal health; Neospora; Cattle; Brazil; Reproduction..
Ano: 2001 URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/324159
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Situação atual e perspectivas no controle do carrapato por meio de vacina. Infoteca-e
ANDREOTTI, R.; GOMES, A..
bitstream/item/104653/1/Situacao-atual-e-perspectivas.pdf
Tipo: Comunicado Técnico (INFOTECA-E) Palavras-chave: Controle; Control.; Boophilus Microplus; Bovino; Carrapato; Sanidade Animal; Vacina.; Animal health; Cattle; Ticks; Vaccines..
Ano: 2003 URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/322436
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Controle do carrapato por meio de vacina - situação atual e perspectivas. Infoteca-e
ANDREOTTI, R.; GOMES, A.; MALAVAZI-PIZA, K. C.; TANAKA, A. S..
Boophilus microplus causa grandes prejuízos econômicos à exploração pecuária no Brasil em função da espoliação dos bovinos, pela transmissão de patógenos, e do alto cursto operacional das técnicas atuais de controle. O combate sistemático ao carrapato do boi faz-se necessário, principalmente nos rebanhos de produção estabelecidos com base em raças européias ou mestiças. O uso de acaricidas ven sendo a medida de conrole profilático e terapêutico mais comum contra esses estoparasitos. Os principais problemas relacionados com essa prática dizem respeito ao desenvolvimento de linhagens resistentes de carrapatos frente a diversas geraçoes de acaricidas, ao aparecimento de resíduos químicos nos produtos de origem animal e à poluição ambiental proveniente do uso...
Tipo: Documentos (INFOTECA-E) Palavras-chave: Controle; Aspecto econômico; Control; Economic situation.; Bovino; Boophilus Microplus; Carrapato; Sanidade Animal; Vacina.; Animal health; Cattle; Ticks; Vaccines..
Ano: 2002 URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/325566
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Diagnóstico e controle da neosporose em bovinos. Infoteca-e
ANDREOTTI, R.; LOCATELLI-DITTRICH, R; SOCCOL, V. T.; PAIVA, F..
A neosporose em bovinos é uma doença causada pelo protozoário Neospora caninum, identificado pela primeira vez em 1988, em cães com encefalomielite, o hospedeiro definitivo. Estudos sorológicos de vários países demonstraram o parasita como a maior causa de abortos em rebanhos leiteiros. A doença está amplamente disseminada nos diferentes continentes. A importância econômica da neosporose bovina é atribuida principalmente aos custos associados ao aborto, ao valor dos fetos, à inseminação artificial ou à cobertura, à diminuição da produção de leite, ao aumento do descarte e à reposição dos animais.Em bovinos, os dois mecanismos de infecção por N. caninum são as transferência do parasita da mãe para o feto (transmissão vertical ou infecção congênita) e a...
Tipo: Documentos (INFOTECA-E) Palavras-chave: Controle; Diseases; Biology; Diagnosis; Control.; Biologia; Bovino; Cão; Diagnostico; Doença; Neosporose; Neospora Caninum; Sanidade Animal.; Animal health; Dogs; Cattle; Neosporosis..
Ano: 2003 URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/324070
Registros recuperados: 389
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