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Registros recuperados : 34 | |
3. | | OLIVEIRA, G. M. M.; AMORIM, W. P. F.; SILVA, R. B.; ROTTA, P. P.; CAMPOS, M. M.; SILVA, A. L. Consumo e desempenho de novilhas mestiças Holandês×Gir criadas em pasto, recebendo suplemento com diferentes níveis de proteína nãodegradável no rúmen. In: SIMPÓSIO INTERNACIONAL DE BOVINOCULTURA LEITEIRA, 9., 2023, Viçosa, MG. Anais... Viçosa, MG: Universidade Federal de Viçosa, 2023. p. 309-311. Biblioteca(s): Embrapa Gado de Leite. |
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4. | | SILVA, A. L. da; PIUZANA, L. G.; SANT'ANA, A. B.; TOMICH, T. R.; SOUSA, F. C. de; ROTTA, P. P. Aditivos alimentares para redução da emissão de metano em vacas leiteiras. In: SIMPÓSIO INTERNACIONAL DE BOVINOCULTURA LEITEIRA, 9., 2023, Viçosa, MG. Anais... Viçosa, MG: Universidade Federal de Viçosa, 2023. p. 137-156. Biblioteca(s): Embrapa Gado de Leite. |
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5. | | OLIVEIRA, G. M. M.; AMORIM, W. P. F.; ZANETTI, C. V.; ROTTA, P. P.; CAMPOS, M. M.; SILVA, A. L. Medidas biométricas de novilhas mestiças Holandês×Gir criadas e pasto, recebendo suplemento com diferentes níveis de proteína nãodegradável no rúmen. In: SIMPÓSIO INTERNACIONAL DE BOVINOCULTURA LEITEIRA, 9., 2023, Viçosa, MG. Anais... Viçosa, MG: Universidade Federal de Viçosa, 2023. p. 394-396. Biblioteca(s): Embrapa Gado de Leite. |
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6. | | SGUIZZATO, A. L. L.; MARCONDES, M. I.; VALADARES FILHO, S. C.; CATON, J.; NEVILLE, T. L.; MACHADO, F. S.; PACHECO, M. V. C.; ROTTA, P. P. Body composition changes of crossbred Holstein × Gyr cows and conceptus during pregnancy. Journal of Dairy Science, v. 103, n. 3, p. 2773-2783, 2020. Biblioteca(s): Embrapa Gado de Leite. |
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7. | | SGUIZZATO, A. L. L.; MARCONDES, M. I.; DIJKSTRA, J.; VALADARES FILHO, S. de C.; CAMPOS, M. M.; MACHADO, F. S.; SILVA, B. C.; ROTTA, P. P. Energy requirements for pregnant dairy cows. PLoS One, v. 15, n. 7, e0235619, 2020. Biblioteca(s): Embrapa Gado de Leite. |
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8. | | MARCONDES, M. I.; PROVAZZI, F. P.; SILVESTRE, T.; SILVA, A. L.; VALADARES FILHO, S. C.; CAMPOS, M. M.; MACHADO, F. S.; ROTTA, P. P. Protein requirements for pregnant dairy cows. Journal of Dairy Science, v. 106, p. 8821-8834, 2023. Biblioteca(s): Embrapa Gado de Leite. |
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9. | | MARCONDES, M. I.; SILVESTRE, T.; DIJKSTRA, J.; PROVAZZI, F. P.; SILVA, A. L.; VALADARES FILHO, S. C.; CAMPOS, M. M.; MACHADO, F. S.; ROTTA, P. P. Protein requirements for pregnant dairy cows. Animal - Science Proceedings, v. 13, n. 3, p. 253-254, 2022. Edição dos Anais do VII International Symposium on Energy and Protein Metabolism and Nutrition, 2022, Granada, Spain. Biblioteca(s): Embrapa Gado de Leite. |
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10. | | ROTTA, P. P.; VALADARES FILHO, S. C.; SANTOS, T. R.; COSTA E SILVA, L. F.; MARCONDES, M. I.; CAMPOS, M. M.; SILVA, F. A. S.; OLIVEIRA, J. R.; MENEZES, A. C. B.; MARTINS, E. C.; VILLADIEGO, F. A. C. Effects of stage of gestation and diet on dairy cow placentomes. Journal of Dairy Science, v. 96, p. 22, 2013. Suppl. 1. Edição dos abstracts do ASAS Joint Annual Meeting, 2013, Indianápolis. Biblioteca(s): Embrapa Gado de Leite. |
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11. | | ROTTA, P. P.; VALADARES FILHO, S. C.; ENGLE, T. E.; COSTA E SILVA, L. F.; MARCONDES, M. I.; MACHADO, F. S.; GIONBELLI, T. R.; SILVA, B. C.; SILVA, F. A. S. Effects of stage of gestation and feeding regime on intake and apparent total tract digestibility in Holstein x Gyr dairy cows. Journal of Animal Science, v. 92, p. 574, 2014. Supplement. Edição dos abstracts do Joint Annual Meeting, 2014, Kansas City. Biblioteca(s): Embrapa Gado de Leite. |
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12. | | WELLER, M. M. D. C. A.; FORTES, M. R. S.; MARCONDES, M. I.; ROTTA, P. P.; GIONBELI, T. R. S.; VALADARES FILHO, S. C.; CAMPOS, M. M.; SILVA, F. F.; SILVA, W.; MOORE, S.; GUIMARÃES, S. E. F. Effect of maternal nutrition and days of gestation on pituitary gland and gonadal gene expression in cattle. Journal of Dairy Science, v. 99, n. 4, p. 3056-3071, 2016. Biblioteca(s): Embrapa Gado de Leite. |
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13. | | ROTTA, P. P.; VALADARES FILHO, S. C.; MACHADO, F. S.; CAMPOS, M. M.; MARCONDES, M. I.; CARVALHO, B. C. de; SILVA, L. F. C.; MENEZES, A. C. B.; SILVA, L. H. R. Effect of diet and stage of gestation on maternal digestive tract in crossbred (Holstein-Gyr) dairy cattle. In: BIENNIAL CONFERENCE OF THE AUSTRALIAN SOCIETY OF ANIMAL PRODUCTION, 30., 2014, Canberra. Proceedings... Toowong: The Australian Society of Animal Production, 2014. p. 243 Biblioteca(s): Embrapa Gado de Leite. |
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14. | | ROTTA, P. P.; VALADARES FILHO, S. C.; GIONBELLI, T. R. S.; COSTA E SILVA, L. F.; ENGLE, T. E.; MARCONDES, M. I.; MACHADO, F. S.; VILLADIEGO, F. A. C.; SILVA, J. C. J. Effects of day of gestation and feeding regimen in Holstein × Gyr cows: I. Apparent total-tract digestibility, nitrogen balance, and fat deposition. Journal of Dairy Science, v. 98, n. 5, p. 3197-3210, 2015. Biblioteca(s): Embrapa Gado de Leite. |
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15. | | ROTTA, P. P.; VALADARES FILHO, S. C.; GIONBELLI, T. R. S.; COSTA E SILVA, L. F.; ENGLE, T. E.; MARCONDES, M. I.; CAMPOS, M. M.; MENEZES, A. C. B.; LOBO, A. A. G. Effects of day of gestation and feeding regimen in Holstein × Gyr cows: II. maternal and fetal visceral organ mass. Journal of Dairy Science, v. 98, p. 3211-3223, 2015. Biblioteca(s): Embrapa Gado de Leite. |
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16. | | ROTTA, P. P.; VALADARES FILHO, S. C.; ENGLE, T. E.; SILVA, L. F. C. e; MARCONDES, M. I.; MACHADO, F. S.; GIONBELLI, T. R. S.; SILVA, B. C.; PACHECO, M. V. C. Effects of day of gestation and feeding regimen in Holstein x Gyr cows on apparent total-tract digestibility, nitrogen balance, and fat deposition In: ADSA ASAS JOINT ANNUAL MEETING, 2015, Orlando. Proceedings... Orlando: ADSA: ASAS, 2015. Biblioteca(s): Embrapa Gado de Leite. |
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17. | | ROTTA, P. P.; VALADARES FILHO, S. C.; ENGLE, T. E.; SILVA, L. F. C.; MARCONDES, M. I.; CAMPOS, M. M.; GIONBELLI, T. R. S.; SILVA, L. H. R.; MARTINS, E. C.; SILVA, F. A. S.; VILLADIEGO, F. A. C. Effects of day gestation and feeding regimen in Holstein x Gyr cows on maternal and fetal visceral organ mass In: ADSA ASAS JOINT ANNUAL MEETING, 2015, Orlando. Proceedings... Orlando: ADSA: ASAS, 2015. Biblioteca(s): Embrapa Gado de Leite. |
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18. | | MENEZES, A. C. B.; VALADARES FILHO, S. DE C.; ROTTA, P. P.; SANTOS, T. R.; MACHADO, F. S.; MARCONDES, M. I.; VILLADIEGO, F. A. C.; COSTA E SILVA, L. F. Deposição de gordura em vacas gestantes (Holandês x Gir) alimentada à nível de mantença ou ad litium. In: CONGRESSO BRASILEIRO DE ZOOTECNIA, 23., 2013, Foz do Iguaçu. Zootecnia do futuro: Produção Animal Sustentável: [anais]. Foz do Iguaçu: Universidade Estadual do Oeste do Paraná, 2013. Biblioteca(s): Embrapa Gado de Leite. |
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19. | | GIONBELLI, T. R. S.; VELOSO, C. M.; ROTTA, P. P.; VALADARES FILHO, S. C.; CARVALHO, B. C. de; M. I. MARCONDES; CUNHA, C. S.; NOVAES, M. A. S.; PREZOTTO, L. D.; DUARTE, M. S.; GIONBELLI, M. P. Foetal development of skeletal muscle in bovines as a function of maternal nutrition, foetal sex and gestational age. Journal of Animal Physiology and Animal Nutrition, v. 102, p. 545-556, 2018. Biblioteca(s): Embrapa Gado de Leite. |
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20. | | ROTTA, P. P.; VALADARES FILHO, S. C.; MACHADO, F. S.; CAMPOS, M. M.; MARCONDES, M. I.; CARVALHO, B. C. de; SILVA, L. F. C.; SILVA, F. A. S.; MENEZES, A. C. B.; SILVA, L. H. R. Dry matter and nutrient intake of pregnant Holstein-gyr cows fed ad libitum or at maintenance level in different stages of gestation. In: BIENNIAL CONFERENCE OF THE AUSTRALIAN SOCIETY OF ANIMAL PRODUCTION, 30., 2014, Canberra. Proceedings... Toowong: The Australian Society of Animal Production, 2014. p. 240. Biblioteca(s): Embrapa Gado de Leite. |
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Registros recuperados : 34 | |
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Registro Completo
Biblioteca(s): |
Embrapa Gado de Leite. |
Data corrente: |
12/08/2021 |
Data da última atualização: |
12/08/2021 |
Tipo da produção científica: |
Artigo em Periódico Indexado |
Circulação/Nível: |
A - 1 |
Autoria: |
SGUIZZATO, A. L. L.; MARCONDES, M. I.; DIJKSTRA, J.; VALADARES FILHO, S. de C.; CAMPOS, M. M.; MACHADO, F. S.; SILVA, B. C.; ROTTA, P. P. |
Afiliação: |
ANNA LUIZA LACERDA SGUIZZATO, Universidade Federal de Viçosa; MARCOS INÁCIO MARCONDES, Universidade Federal de Viçosa; JAN DIJKSTRAI, Wageningen University; SEBASTIÃO DE CAMPOS VALADARES FILHO, Universidade Federal de Viçosa; MARIANA MAGALHAES CAMPOS, CNPGL; FERNANDA SAMARINI MACHADO, CNPGL; BRENO CASTRO SILVA, Universidade Federal de Viçosa; POLYANA PIZZI ROTTA, Universidade Federal de Viçosa. |
Título: |
Energy requirements for pregnant dairy cows. |
Ano de publicação: |
2020 |
Fonte/Imprenta: |
PLoS One, v. 15, n. 7, e0235619, 2020. |
DOI: |
https://doi.org/ 10.1371/journal.pone.0235619 |
Idioma: |
Inglês |
Conteúdo: |
This study aimed to estimate energy requirements of pregnant Holstein × Gyr cows. Different planes of nutrition were established by two feeding regimens: ad libitum or maintenance. Sixty-two nonlactating cows with average body weight of 480 ± 10.1 kg and an age of 5 ± 0.5 years were used. Cows were divided into three groups: pregnant (n = 44), non-pregnant (n=12), and baseline reference (n = 6). The 56 pregnant and non-pregnant cows were randomly allocated into a feeding regimen: ad libitum or maintenance. To evaluate the effects of days of pregnancy, pregnant and non-pregnant animals were slaughtered at 140, 200, 240, and 270 days of pregnancy. Energy requirements for maintenance differed between pregnant and non-pregnant cows, thus two equations were developed. Net energy and metabolizable energy requirements for maintenance of non-pregnant cows were 82 kcal/kg empty body weight0.75/day and 132 kcal/kg empty body weight0.75/day, respectively. The efficiency of use of metabolizable energy for maintenance of non-pregnant cows was 62.4%. Net energy and metabolizable energy for maintenance of pregnant cows were 86 kcal/kg empty body weight0.75/day and 137 kcal/kg empty body weight0.75/day, respectively. Efficiency of use of metabolizable energy for maintenance of pregnant cows was 62.5%. The efficiency of use of metabolizable energy for gain was 41.9%. The efficiency of use of metabolizable energy for pregnancy was 14.1%. Furthermore, net energy requirement for pregnancy was different from zero from day 70 of pregnancy onwards. In conclusion, net energy and metabolizable energy requirements for maintenance of non-pregnant cows are different from pregnant cows. Furthermore, we believe that the proposed non-linear equations to estimate net energy requirements for pregnancy are more adequate than current NRC equation, and should be recommended for Holstein × Gyr cows. MenosThis study aimed to estimate energy requirements of pregnant Holstein × Gyr cows. Different planes of nutrition were established by two feeding regimens: ad libitum or maintenance. Sixty-two nonlactating cows with average body weight of 480 ± 10.1 kg and an age of 5 ± 0.5 years were used. Cows were divided into three groups: pregnant (n = 44), non-pregnant (n=12), and baseline reference (n = 6). The 56 pregnant and non-pregnant cows were randomly allocated into a feeding regimen: ad libitum or maintenance. To evaluate the effects of days of pregnancy, pregnant and non-pregnant animals were slaughtered at 140, 200, 240, and 270 days of pregnancy. Energy requirements for maintenance differed between pregnant and non-pregnant cows, thus two equations were developed. Net energy and metabolizable energy requirements for maintenance of non-pregnant cows were 82 kcal/kg empty body weight0.75/day and 132 kcal/kg empty body weight0.75/day, respectively. The efficiency of use of metabolizable energy for maintenance of non-pregnant cows was 62.4%. Net energy and metabolizable energy for maintenance of pregnant cows were 86 kcal/kg empty body weight0.75/day and 137 kcal/kg empty body weight0.75/day, respectively. Efficiency of use of metabolizable energy for maintenance of pregnant cows was 62.5%. The efficiency of use of metabolizable energy for gain was 41.9%. The efficiency of use of metabolizable energy for pregnancy was 14.1%. Furthermore, net energy requirement for pregnancy was d... Mostrar Tudo |
Thesagro: |
Gado Leiteiro. |
Categoria do assunto: |
-- |
URL: |
https://ainfo.cnptia.embrapa.br/digital/bitstream/item/225095/1/Energy-requirements.pdf
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Marc: |
LEADER 02554naa a2200229 a 4500 001 2133488 005 2021-08-12 008 2020 bl uuuu u00u1 u #d 024 7 $ahttps://doi.org/ 10.1371/journal.pone.0235619$2DOI 100 1 $aSGUIZZATO, A. L. L. 245 $aEnergy requirements for pregnant dairy cows.$h[electronic resource] 260 $c2020 520 $aThis study aimed to estimate energy requirements of pregnant Holstein × Gyr cows. Different planes of nutrition were established by two feeding regimens: ad libitum or maintenance. Sixty-two nonlactating cows with average body weight of 480 ± 10.1 kg and an age of 5 ± 0.5 years were used. Cows were divided into three groups: pregnant (n = 44), non-pregnant (n=12), and baseline reference (n = 6). The 56 pregnant and non-pregnant cows were randomly allocated into a feeding regimen: ad libitum or maintenance. To evaluate the effects of days of pregnancy, pregnant and non-pregnant animals were slaughtered at 140, 200, 240, and 270 days of pregnancy. Energy requirements for maintenance differed between pregnant and non-pregnant cows, thus two equations were developed. Net energy and metabolizable energy requirements for maintenance of non-pregnant cows were 82 kcal/kg empty body weight0.75/day and 132 kcal/kg empty body weight0.75/day, respectively. The efficiency of use of metabolizable energy for maintenance of non-pregnant cows was 62.4%. Net energy and metabolizable energy for maintenance of pregnant cows were 86 kcal/kg empty body weight0.75/day and 137 kcal/kg empty body weight0.75/day, respectively. Efficiency of use of metabolizable energy for maintenance of pregnant cows was 62.5%. The efficiency of use of metabolizable energy for gain was 41.9%. The efficiency of use of metabolizable energy for pregnancy was 14.1%. Furthermore, net energy requirement for pregnancy was different from zero from day 70 of pregnancy onwards. In conclusion, net energy and metabolizable energy requirements for maintenance of non-pregnant cows are different from pregnant cows. Furthermore, we believe that the proposed non-linear equations to estimate net energy requirements for pregnancy are more adequate than current NRC equation, and should be recommended for Holstein × Gyr cows. 650 $aGado Leiteiro 700 1 $aMARCONDES, M. I. 700 1 $aDIJKSTRA, J. 700 1 $aVALADARES FILHO, S. de C. 700 1 $aCAMPOS, M. M. 700 1 $aMACHADO, F. S. 700 1 $aSILVA, B. C. 700 1 $aROTTA, P. P. 773 $tPLoS One$gv. 15, n. 7, e0235619, 2020.
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