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| ALMEIDA, I. L. de; ABREU, U. G. P. de; LOUREIRO, J. M. F.; COMASTRI FILHO, J. A.. |
| O trabalho foi baseado no acompanhamento tecnico da fazenda Campo Eunice, localizada na sub-regiao dos Paiaguas, no periodo de maio/91 a maio/95, onde foram realizados oito "trabalhos de gado", dois a cada ano (maio/junho e novembro/dezembro). As tecnologias implantadas e/ou adaptadas foram: monta controlada, formulacao mineral propria para a sub-regiao, desmama antecipada e everminacao estrategica dos bezerros desmamados. As vacas foram identificadas atraves de numeracao e os touros submetidos a dois exames andrologicos durante o periodo. Em cada "trabalho de gado" as femeas que passavam pelo curral eram visualmente classificadas como "criando/mojando" ou "solteira", proporcionando o acompanhamento de seu desempenho produtivo e reprodutivo, permitindo o... |
| Tipo: Circular Técnica (INFOTECA-E) |
Palavras-chave: Bovino de corte; Paiaguas; Brasil; Beef cow; Bovine; Breed; Management.; Criação; Manejo; Tecnologia.; Brazil; Pantanal; Beef cattle; Technology.. |
| Ano: 1996 |
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/792180 |
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| Vosough Ahmadi, Bouda; Morgan, Colin A.; Stott, Alistair W.. |
| Since decoupling of the CAP, many Scottish suckler cow farms are facing financial difficulties. In response, many farmers are out-wintering extensively managed suckler cows to minimise production costs. These systems are of animal welfare concern. A range of trade-offs between animal welfare indicators and between animal welfare and farm profitability can be identified. A Dynamic Programming (DP) model was developed to study these trade-offs. Two herds were modelled assuming their feeding regimes were either low (LHERD) or high (HHERD). The objective of the DP was to maximise the expected net margin from a current cow and its successors over an infinite time horizon. Preliminary results showed that the rate of voluntary culling was higher in HHERD than in... |
| Tipo: Working or Discussion Paper |
Palavras-chave: Livestock Production/Industries; Beef cow; Economics; Dynamic programming; Animal welfare. |
| Ano: 2009 |
URL: http://purl.umn.edu/61122 |
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| Stott, Alistair W.; Gunn, George J.; Varo Barbudo, Antonio. |
| A survey of the management of reproduction on 66 Scottish suckler herds calving in spring 2003 was analysed using multiple regression. The predicted mean value of suckled calves produced was £237/cow (SE 1.8). The regression coefficients of the predictors was 0.74 (0.05), 15 (3.9) and 248 (16.5) for date of first calving, average number of 21-day calving periods (calving spread) and proportion of cows barren respectively. Improving each predictor by 1 SD had the combined potential to improve predicted calf value by £64/cow, over 80% of the current typical gross margin for this type of enterprise. Bull care had a significant influence on calving spread and number of biosecurity measures taken had a positive influence on the proportion of cows barren.... |
| Tipo: Conference Paper or Presentation |
Palavras-chave: Beef cow; Fertility; Economics; Management; Livestock Production/Industries. |
| Ano: 2008 |
URL: http://purl.umn.edu/36871 |
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| Featherstone, Allen M.; Langemeier, Michael R.; Ismet, Mohammad. |
| Competitive pressures in the cow-calf sector increased in 1995 because of a decline of 27% in calf prices. Technical, allocative, and scale efficiency measures were used to examine the competitiveness of a sample of Kansas beef cow farms. On average, the farms were 78% technically efficient, 81% allocatively efficient, and 95% scale efficient. Enterprise profitability was correlated positively with the efficiency measures. Inefficiency was related to herd size and degree of specialization. Producers should focus on using capital, feed, and labor more efficiently rather that increasing their size. Increased concentration of the cow-calf sector will not result in large cost savings given the current technology. |
| Tipo: Journal Article |
Palavras-chave: Beef cow; Industry structure; Nonparametric efficiency; Productivity Analysis. |
| Ano: 1997 |
URL: http://purl.umn.edu/15547 |
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| Vosough Ahmadi, Bouda; Morgan, Colin A.; Stott, Alistair W.. |
| Since decoupling of the CAP, many Scottish suckler cow farms are facing financial difficulties. In response, many farmers are out-wintering extensively managed suckler cows to minimise production costs. These systems are of animal welfare concern. A range of trade-offs between animal welfare indicators and between animal welfare and farm profitability can be identified. A Dynamic Programming (DP) model was developed to study these trade-offs. Two herds were modelled assuming their feeding regimes were either low (LHERD) or high (HHERD). The objective of the DP was to maximise the expected net margin from a current cow and its successors over an infinite time horizon. Preliminary results showed that the rate of voluntary culling was higher in HHERD than in... |
| Tipo: Conference Paper or Presentation |
Palavras-chave: Beef cow; Economics; Dynamic programming; Animal welfare; Livestock Production/Industries. |
| Ano: 2009 |
URL: http://purl.umn.edu/51078 |
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