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| Silva, Danilo Corrêa; Passini, Roberta. |
| This studyaimed to assess different holding pen climatization systems for dairy cattle through environmental variables, milk production and economic indexes. Sixteen lactating cows were used, distributed in a 4 x 4 Latin square design consisting of four groups of four animals, assessed in four periods, seven days each, and in four holding pen environments: SUN– external environment (in the sun), SHA– 80%-protection polypropylenemesh shading, SHA + SPR– 80% polypropylene mesh shading + water sprinkling, SHA + SPR + VEN – 80% polypropylene mesh shading + water sprinkling + ventilation. The animals remained for 30 minutes in their respective environments. In this period, environmental variables were collected using data loggers, and the milk produced, in kg,... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: 5.03.04.00-3 Construções Rurais e Ambiência ambience; Economic viability; Dairy cows.. |
| Ano: 2017 |
URL: http://periodicos.uem.br/ojs/index.php/ActaSciAnimSci/article/view/36087 |
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| CECCHIN, D.; CAMPOS, A. T.; YANAGI JUNIOR, T.; PIRES, M. de F. A.; LOURENÇONI, D.; SOUSA, F. A.; CECCHIN, D.. |
| Abstract: The objective of the present study was to evaluate the behavior of dairy cows confined in free-stall systems. Eighteen Holstein cows were evaluated in this research. The following frequencies were evaluated at 10-min intervals: stall occupancy, corridor occupancy, feeding, moving and being milked. The free-stalls were covered with rubber mattresses. Thermal variables such as dry bulb temperature, humid bulb temperature, black globe temperature and air velocity were recorded hourly. The data collections were made for 13 days in May, during autumn. Dynamics of social hierarchy was observed for 18 animals. The animals preferred to occupy the stalls located in quadrant 1, between the north and east axis, where there was less movement of people,... |
| Tipo: Separatas |
Palavras-chave: Occupation rate; Rubber mattress.; Dairy cows.. |
| Ano: 2015 |
URL: http://www.alice.cnptia.embrapa.br/alice/handle/doc/1061589 |
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| SILVA, M. V. G. B.; MARTINS, M. F.; CEMBRANELLI, M. de A. R.; PANETTO, J. C. do C.; PAIVA, L. DE C.; GONÇALVES, G. S.; MACHADO, M. A.; REIS, D. R. de L.. |
| A Avaliação Genética das Vacas Girolando, constante na avaliação de 2018 incorpora definitivamente a análise de dados genômicos na sua metodologia. Essa tecnologia proporciona a correção e o aprimoramento das estimativas de parentesco e o aumento das confiabilidades das predições de valores genéticos, permitindo que a seleção de animais geneticamente superiores para a produção de leite seja feita de forma ainda mais eficiente. |
| Tipo: Documentos (INFOTECA-E) |
Palavras-chave: Bovinos de leite; Melhoramento genetico; Raça girolando; Dairy cows.; Breeding and Genetic Improvement; Girolando. |
| Ano: 2018 |
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/1092585 |
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| SILVA, M. V. G. B.; MARTINS, M. F.; CEMBRANELLI, M. de A. R.; PAIVA, L. DE C.; PANETTO, J. C. do C.; MACHADO, M. A.; VERARDO, L. L.; GONÇALVES, G. S.; REIS, D. R. de L.; MENDONÇA JÚNIOR, C. F.; BRAGA, F. do A.; FRANZON, C. de A.. |
| Este documento representa um marco na história de sucesso da raça Girolando, pois apresenta, pela primeira vez, os valores genômicos para fêmeas jovens, o que permitirá maior confiabilidade na seleção de animais geneticamente superiores para a produção de leite. |
| Tipo: Documentos (INFOTECA-E) |
Palavras-chave: Bovinos de leite; Melhoramento genetico; Raça girolando; Novilhas leiteiras.; Girolando; Breeding and Genetic Improvement; Dairy cows.. |
| Ano: 2017 |
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/1071824 |
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| Khalili, Mohsen; Chamani, Mohammad; Amanlou, Hamid; Nikkhah, Ali; Sadeghi, Aliasghar; Dehkordi, Farhad Kamali; Rafiei, Mohammad; Shirani, Vahid. |
| The purpose of this study was to investigate the effects of four types of diets containing different forms of selenium on the hematological blood parameters, reproduction and health of dairy cattle during the transition period. Twenty-four close-up dry cows with a mean of 259 ± 1days of pregnancy and expected 21 ± 1days prior to parturition were selected. The cows were fed four diets: 1) basal diet without selenium supplementation (C); 2) basal diet plus 0.5ppm selenium in the form of sodium selenite (Se-S) 3) basal diet plus 0.5ppm selenium in the form of selenium yeast (Se-Y); 4) basal diet plus 0.5ppm selenium in the form of selenomethionine (Se-M). Blood samples for measuring hematological blood parameters (including lymphocyte, red blood cells,... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Selenium; Hematological blood parameters; Reproduction; Health; Dairy cows.. |
| Ano: 2019 |
URL: http://periodicos.uem.br/ojs/index.php/ActaSciAnimSci/article/view/45371 |
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