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Registro Completo |
Biblioteca(s): |
Embrapa Gado de Leite. |
Data corrente: |
16/10/2023 |
Data da última atualização: |
22/01/2024 |
Tipo da produção científica: |
Artigo em Periódico Indexado |
Autoria: |
MARCONDES, M. I.; PROVAZZI, F. P.; SILVESTRE, T.; SILVA, A. L.; VALADARES FILHO, S. C.; CAMPOS, M. M.; MACHADO, F. S.; ROTTA, P. P. |
Afiliação: |
Washington State University; Universidade Federal de Viçosa; Washington State University; Universidade Federal de Viçosa; VALADARES FILHO, Universidade Federal de Viçosa; MARIANA MAGALHAES CAMPOS, CNPGL; FERNANDA SAMARINI MACHADO, CNPGL; Universidade Federal de Viçosa. |
Título: |
Protein requirements for pregnant dairy cows. |
Ano de publicação: |
2023 |
Fonte/Imprenta: |
Journal of Dairy Science, v. 106, p. 8821-8834, 2023. |
DOI: |
https://doi.org/10.3168/jds.2023-23321 |
Idioma: |
Inglês |
Conteúdo: |
We aimed to estimate the protein requirements of pregnant Holstein × Gyr cows. Sixty-one Holstein × Gyr (HG) cows were used, with an average initial BW of 480 ± 10.1 kg and 5 ± 0.5 yrs of age. Cows were divided into 3 groups: pregnant (n = 43), non-pregnant (n = 12), and baseline (n = 6). Baseline animals were slaughtered before starting the experiment to estimate the initial body composition of the remaining animals. Pregnant and non-pregnant cows received 2 diets: maintenance and ad libitum. Pregnant cows were slaughtered at 139, 199, 241, and 268 gestation days (GD). First, we used data only from non-pregnant cows to determine the requirements for maintenance and growth in adult cows. The requirements of metabolizable protein for maintenance (MPm; g/EBW0.75/d) were estimated using a linear regression between the metabolizable protein intake (MPI, g/d) and average daily gain (g/d), and the MPm was defined as the intercept divided by the average BW0.75. Net protein requirements for gain (NPg; g/d) were estimated by the first derivative of the allometric equation between final crude protein (CP) in the body (kg) and the final EBW (kg). The efficiency of use of metabolizable protein for gain (k) was calculated from the regression between the retained protein (g/EBW0.75/d) and the MPI (g/EBW0.75/d), and k was the slope of this regression. The MPI was estimated by combining microbial protein synthesis (purine derivatives) with the digestible rumen undegradable protein [(total protein intake minus RDP) × intestinal digestibility]. Second, an exponential model was used to fit the protein accumulation in the gestational components in the function of GD. The first derivative of that model was considered the net requirement for gestation (NPgest). The efficiency of protein utilization for gestation (kgest) was calculated by the iterative method using the equation: ? = MPI - (MPm + NPg/kg + NPgest/kgest). The iteration was performed aiming at a zero deviation between observed MPI and MP estimated by the requirements determined herein. We obtained a value of 3.88 g/EBW0.75/d for MPm. The estimation of NPg can be calculated according to the following equation: NPg = 0.716 × (EBWopen-0.308) × EBGcorrected, where EBWopen is the empty BW (kg) for non-pregnant animals and EBGcorrected is the empty body gain (kg/d) corrected for the gestational component. The k was determined as 0.347. The net protein requirements for gestation (NPgest) were determined as NPgest (g/d) = 0.0008722 × exp(0.01784 × GD) × (calfweight/35). The efficiency of using metabolizable protein for gestation (kgest) was 0.625. It is important to highlight that different methods of MP estimates should not be mixed and that the proposed method requires the estimate of microbial protein (estimate it via urinary estimates) and might be a limitation for practical application. In conclusion, new studies should be conducted to validate our results and the methodology adopted to determine protein requirements for pregnancy in dairy cows. Due to the pattern of protein accumulation in the gestational components, we suggest that exponential model to describe protein requirements for pregnancy for dairy cows. MenosWe aimed to estimate the protein requirements of pregnant Holstein × Gyr cows. Sixty-one Holstein × Gyr (HG) cows were used, with an average initial BW of 480 ± 10.1 kg and 5 ± 0.5 yrs of age. Cows were divided into 3 groups: pregnant (n = 43), non-pregnant (n = 12), and baseline (n = 6). Baseline animals were slaughtered before starting the experiment to estimate the initial body composition of the remaining animals. Pregnant and non-pregnant cows received 2 diets: maintenance and ad libitum. Pregnant cows were slaughtered at 139, 199, 241, and 268 gestation days (GD). First, we used data only from non-pregnant cows to determine the requirements for maintenance and growth in adult cows. The requirements of metabolizable protein for maintenance (MPm; g/EBW0.75/d) were estimated using a linear regression between the metabolizable protein intake (MPI, g/d) and average daily gain (g/d), and the MPm was defined as the intercept divided by the average BW0.75. Net protein requirements for gain (NPg; g/d) were estimated by the first derivative of the allometric equation between final crude protein (CP) in the body (kg) and the final EBW (kg). The efficiency of use of metabolizable protein for gain (k) was calculated from the regression between the retained protein (g/EBW0.75/d) and the MPI (g/EBW0.75/d), and k was the slope of this regression. The MPI was estimated by combining microbial protein synthesis (purine derivatives) with the digestible rumen undegradable protein [(total p... Mostrar Tudo |
Thesagro: |
Bovino; Gado Leiteiro; Período de Gestação; Proteína; Vaca Leiteira. |
Thesaurus Nal: |
Gestation period; Holstein; Pregnancy. |
Categoria do assunto: |
L Ciência Animal e Produtos de Origem Animal |
URL: |
https://ainfo.cnptia.embrapa.br/digital/bitstream/item/260912/1/Protein-requirements-for-pregnant-dairy-cows.pdf
|
Marc: |
LEADER 04078naa a2200313 a 4500 001 2157260 005 2024-01-22 008 2023 bl uuuu u00u1 u #d 024 7 $ahttps://doi.org/10.3168/jds.2023-23321$2DOI 100 1 $aMARCONDES, M. I. 245 $aProtein requirements for pregnant dairy cows.$h[electronic resource] 260 $c2023 520 $aWe aimed to estimate the protein requirements of pregnant Holstein × Gyr cows. Sixty-one Holstein × Gyr (HG) cows were used, with an average initial BW of 480 ± 10.1 kg and 5 ± 0.5 yrs of age. Cows were divided into 3 groups: pregnant (n = 43), non-pregnant (n = 12), and baseline (n = 6). Baseline animals were slaughtered before starting the experiment to estimate the initial body composition of the remaining animals. Pregnant and non-pregnant cows received 2 diets: maintenance and ad libitum. Pregnant cows were slaughtered at 139, 199, 241, and 268 gestation days (GD). First, we used data only from non-pregnant cows to determine the requirements for maintenance and growth in adult cows. The requirements of metabolizable protein for maintenance (MPm; g/EBW0.75/d) were estimated using a linear regression between the metabolizable protein intake (MPI, g/d) and average daily gain (g/d), and the MPm was defined as the intercept divided by the average BW0.75. Net protein requirements for gain (NPg; g/d) were estimated by the first derivative of the allometric equation between final crude protein (CP) in the body (kg) and the final EBW (kg). The efficiency of use of metabolizable protein for gain (k) was calculated from the regression between the retained protein (g/EBW0.75/d) and the MPI (g/EBW0.75/d), and k was the slope of this regression. The MPI was estimated by combining microbial protein synthesis (purine derivatives) with the digestible rumen undegradable protein [(total protein intake minus RDP) × intestinal digestibility]. Second, an exponential model was used to fit the protein accumulation in the gestational components in the function of GD. The first derivative of that model was considered the net requirement for gestation (NPgest). The efficiency of protein utilization for gestation (kgest) was calculated by the iterative method using the equation: ? = MPI - (MPm + NPg/kg + NPgest/kgest). The iteration was performed aiming at a zero deviation between observed MPI and MP estimated by the requirements determined herein. We obtained a value of 3.88 g/EBW0.75/d for MPm. The estimation of NPg can be calculated according to the following equation: NPg = 0.716 × (EBWopen-0.308) × EBGcorrected, where EBWopen is the empty BW (kg) for non-pregnant animals and EBGcorrected is the empty body gain (kg/d) corrected for the gestational component. The k was determined as 0.347. The net protein requirements for gestation (NPgest) were determined as NPgest (g/d) = 0.0008722 × exp(0.01784 × GD) × (calfweight/35). The efficiency of using metabolizable protein for gestation (kgest) was 0.625. It is important to highlight that different methods of MP estimates should not be mixed and that the proposed method requires the estimate of microbial protein (estimate it via urinary estimates) and might be a limitation for practical application. In conclusion, new studies should be conducted to validate our results and the methodology adopted to determine protein requirements for pregnancy in dairy cows. Due to the pattern of protein accumulation in the gestational components, we suggest that exponential model to describe protein requirements for pregnancy for dairy cows. 650 $aGestation period 650 $aHolstein 650 $aPregnancy 650 $aBovino 650 $aGado Leiteiro 650 $aPeríodo de Gestação 650 $aProteína 650 $aVaca Leiteira 700 1 $aPROVAZZI, F. P. 700 1 $aSILVESTRE, T. 700 1 $aSILVA, A. L. 700 1 $aVALADARES FILHO, S. C. 700 1 $aCAMPOS, M. M. 700 1 $aMACHADO, F. S. 700 1 $aROTTA, P. P. 773 $tJournal of Dairy Science$gv. 106, p. 8821-8834, 2023.
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Embrapa Gado de Leite (CNPGL) |
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Registros recuperados : 33 | |
2. | | 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.Tipo: Artigo em Anais de Congresso |
Biblioteca(s): Embrapa Gado de Leite. |
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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.Tipo: Artigo em Anais de Congresso |
Biblioteca(s): Embrapa Gado de Leite. |
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4. | | 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.Tipo: Artigo em Anais de Congresso |
Biblioteca(s): Embrapa Gado de Leite. |
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5. | | 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.Tipo: Artigo em Periódico Indexado | Circulação/Nível: A - 1 |
Biblioteca(s): Embrapa Gado de Leite. |
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6. | | 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.Tipo: Artigo em Periódico Indexado | Circulação/Nível: A - 1 |
Biblioteca(s): Embrapa Gado de Leite. |
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7. | | 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.Tipo: Artigo em Periódico Indexado | Circulação/Nível: A - 1 |
Biblioteca(s): Embrapa Gado de Leite. |
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8. | | 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.Tipo: Artigo em Anais de Congresso |
Biblioteca(s): Embrapa Gado de Leite. |
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9. | | 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.Tipo: Artigo em Anais de Congresso |
Biblioteca(s): Embrapa Gado de Leite. |
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10. | | 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.Tipo: Resumo em Anais de Congresso |
Biblioteca(s): Embrapa Gado de Leite. |
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11. | | 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. 243Tipo: Resumo em Anais de Congresso |
Biblioteca(s): Embrapa Gado de Leite. |
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12. | | 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.Tipo: Artigo em Periódico Indexado | Circulação/Nível: A - 2 |
Biblioteca(s): Embrapa Gado de Leite. |
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13. | | 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.Tipo: Artigo em Periódico Indexado | Circulação/Nível: A - 1 |
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.Tipo: Artigo em Periódico Indexado | Circulação/Nível: A - 1 |
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.Tipo: Artigo em Periódico Indexado | Circulação/Nível: A - 1 |
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.Tipo: Resumo em Anais de Congresso |
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.Tipo: Resumo em Anais de Congresso |
Biblioteca(s): Embrapa Gado de Leite. |
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18. | | 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. Tipo: Resumo em Anais de Congresso |
Biblioteca(s): Embrapa Gado de Leite. |
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19. | | 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.Tipo: Resumo em Anais de Congresso |
Biblioteca(s): Embrapa Gado de Leite. |
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20. | | GIONBELLI, T. R. S.; ROTTA, P. P.; VELOSO, C. M.; MARCONDES, M. I.; VALADARES FILHO, S. C.; CARVALHO, B. C. de; LOVATTI, J. V. R.; CUNHA, C. S.; NOVAIS, M. A. S.; DUARTE, M. S.; GIONBELLI, M. P. Investigation of effects of maternal nutrition intensification and fetal sex on development of skeletal muscle of bovine fetuses In: ADSA ASAS JOINT ANNUAL MEETING, 2015, Orlando. Proceedings... Orlando: ADSA: ASAS, 2015.Tipo: Resumo em Anais de Congresso |
Biblioteca(s): Embrapa Gado de Leite. |
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Registros recuperados : 33 | |
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