Cow Productivity
Mostrando 1-12 de 17 artigos, teses e dissertações.
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1. Nutritional potential of bamboo leaves for feeding dairy cattle
RESUMO A escassez de alimentos durante a estação seca nas terras altas de Madagascar causa impactos negativos à produtividade do gado leiteiro e aos rendimentos dos agricultores. O bambu pode produzir elevada quantidade de biomassa e ser uma alternativa para aumentar a oferta de forragem para o gado. Objetivou-se avaliar a composição, bem como a taxa ó
Pesqui. Agropecu. Trop.. Publicado em: 13/05/2019
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2. Identification and quantification of benchmarks of milk production systems in Minas Gerais
The objective of this study was to identify and quantify benchmarks of milk production systems. The technological profile and size, livestock and economic indicators of sixteen farms in the region of Triângulo Mineiro were analyzed. Indicators correlated with rate of return on capital (RRC) were identified and quantified in four scenarios of RRC (6, 8, 10 a
R. Bras. Zootec.. Publicado em: 2012-10
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3. Breeding objectives and economic values for traits of low input family-based beef cattle production system in the State of Rio Grande do Sul
The objectives of this study were to define breeding objectives and derive economic weights for production traits in family-based beef cattle systems, assess the sensitivity of these weights to changes in market and husbandry indicators and estimate the expected genetic changes in the selection criteria proposed. Based on data from the production systems, fa
Revista Brasileira de Zootecnia. Publicado em: 2012-02
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4. COMPORTAMENTO INGESTIVO E PRODUTIVIDADE DE VACAS DAS RAÇAS JERSEY E HOLANDESA EM PASTAGENS DE AZEVÉM ANUAL / INGESTIVE BEHAVIOUR AND PRODUCTIVITY OF COWS OF JERSEY AND HOLSTEINS BREEDS IN ANNUAL RYEGRASS PASTURES
Foram estudados o comportamento ingestivo, a dinâmica das pastagens e a produtividade de vacas das raças Jersey e Holandesa em pastagens de azevém anual (Lolium multiflorum) no noroeste do Rio Grande do Sul. O experimento foi conduzido de 29/04/2010 a 29/10/2010, sendo utilizadas, no total, onze vacas-testes de cada grupo racial e um número variável de
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 02/12/2011
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5. Curves of growth and productivity of Nellore and cross from different biological types in intensive production system / Curvas de crescimento e produtividade de vacas Nelore e cruzadas, de diferentes tipos biológicos, em sistema de produção intensiva
Initially, were analyzed weight-age data from birth to 100 months of age from cows of four genetic groups (G): Nellore (NEL), ½Nellore + ½Canchim (CN), ½Angus +½Nellore (AN) and ½Simmental + ½Nellore (SN), of a experiment carried out at Embrapa Southeast Cattle Research Center, State of São Paulo, Brazil. The animals considered in this study were born
Publicado em: 2010
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6. Characterization of biological types of cattle: indicator traits offertility in beef cows
Genetic diversity among breeds of cattle allows producers to select animals for specific environments or market conditions. Reproductive efficiency is a multi-component trait that is largely influenced by environmental influences such as health and nutritional status; however, there are clearly genetic components to reproductive efficiency, and breed differe
Revista Brasileira de Zootecnia. Publicado em: 2008-07
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7. Specific fatty acids as metabolic modulators in the dairy cow
This review summarizes recent developments on the utilization of specific fatty acids to modulate bovine energy metabolism, with emphasis on the periparturient dairy cow. A number of experiments have assessed the effects of polyunsaturated fatty acids on bovine hepatic energy metabolism using in vitro and in vivo models. Treatment of hepatocytes with specifi
Revista Brasileira de Zootecnia. Publicado em: 2008-07
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8. Glycerol from biodiesel production: the new corn for dairy cattle
Glycerol, also known as glycerin, is a colorless, odorless, hygroscopic, and sweet-tasting viscous liquid. It is a sugar alcohol with high solubility index in water and has a wide range of applications in the food, pharmaceutical, and cosmetic industries. The use of glycerol in diets for dairy cattle is not novel; however, this interest has been renewed due
Revista Brasileira de Zootecnia. Publicado em: 2008-07
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9. Analysis of zootechnic and economic indicators of dairy farms in Ituiutaba, Minas Gerais / Análise de indicadores zootécnicos e econômicos de fazendas leiteiras em Ituiutaba, Minas Gerais
The objectives of this work were to identify and quantify reference-indicators in dairy production systems in the region of Ituiutaba, Minas Gerais, and thus, regionalize the major dairy farming indicators, as suggested by Oliveira et al. (2007) for southern Bahia. The technological profile and the zootechnic, economic and size indicators were analyzed in 16
Publicado em: 2008
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10. Aversive management in dairy cattle and effects on well-being, behavior and productive aspects / Manejo aversivo em bovinos leiteiros e efeitos no bem-estar , comportamento e aspectos produtivos
The human-animal interaction, determined by the type of management, is of fundamental importance in the dairy cattle production. And furthermore, the highest or lowest stress levels will be reached according to the nature of this particular interaction and so, consequently, the productivity and animal well-being. The study had the objective to evaluate the e
Publicado em: 2008
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11. A methodology for Agri-industrial system modeling in order to identify traceability and quality parameters - a continental malacoculture application. / Metodologia para modelagem do sistema agroindustrial visando identificar parâmetros de rastreabilidade e qualidade - aplicação na malacocultura continental.
It is proposed the application of some Systems and Software Engeneering techniques to the modeling of agro-industrial systems, in an innovative way, defining a methodology in order to better understand the activities and relationships among the many agents within an specific supply chain. It also permits the productive chain graphical modeling using IDEF0, B
Publicado em: 2008
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12. Aspectos zootécnicos e sanitários de propriedades leiteiras do munícipio de Itaperuna (RJ) em 2005
The subject of this study is dairy cattle raising in Itaperuna, Northwest region of the state of Rio de Janeiro and the purpose of the exercise is to help the dairy farmers of this part of the country. The research was done with 110 milk producers from a total of 1009 farms for the whole of the municipality. The study was presented in the form of chapters an
Publicado em: 2007