Metabolic Profile of F1 Holstein × Zebu Lactating Dairy Cows Under Grazing Supplemented with Two Non-Protein Nitrogen Sources

Pastures dedicated to cattle production in Venezuela have a low crude protein concentration. One of the nutritional strategies to correct the forage protein deficit is using non-protein nitrogen in the diet. To evaluate the effect of two non-protein nitrogen sources on the metabolic profile of lacta...

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Autores principales:	Mora Luna, Robert Emilio, Herrera Angulo, Ana María, Eslava Tovar, José Fernando, Isea Chávez, Juan Carlos, Enrique Darghan, Aquiles
Formato:	Artículo
Lenguaje:	Español
Publicado:	Corporación colombiana de investigación agropecuaria - AGROSAVIA 2024
Materias:	Alimentación animal - L02 Ganado bovino Alimentación de los animales Suplementos Suero sanguíneo Ganadería y especies menores http://aims.fao.org/aos/agrovoc/c_1391 http://aims.fao.org/aos/agrovoc/c_429 http://aims.fao.org/aos/agrovoc/c_33996 http://aims.fao.org/aos/agrovoc/c_9323
Acceso en línea:	http://hdl.handle.net/20.500.12324/38858 https://doi.org/10.21930/rcta.vol24_num3_art:2858

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record_format	dspace
institution	Corporación Colombiana de Investigación Agropecuaria
collection	Repositorio AGROSAVIA
language	Español
topic	Alimentación animal - L02 Ganado bovino Alimentación de los animales Suplementos Suero sanguíneo Ganadería y especies menores http://aims.fao.org/aos/agrovoc/c_1391 http://aims.fao.org/aos/agrovoc/c_429 http://aims.fao.org/aos/agrovoc/c_33996 http://aims.fao.org/aos/agrovoc/c_9323
spellingShingle	Alimentación animal - L02 Ganado bovino Alimentación de los animales Suplementos Suero sanguíneo Ganadería y especies menores http://aims.fao.org/aos/agrovoc/c_1391 http://aims.fao.org/aos/agrovoc/c_429 http://aims.fao.org/aos/agrovoc/c_33996 http://aims.fao.org/aos/agrovoc/c_9323 Mora Luna, Robert Emilio Herrera Angulo, Ana María Eslava Tovar, José Fernando Isea Chávez, Juan Carlos Enrique Darghan, Aquiles Metabolic Profile of F1 Holstein × Zebu Lactating Dairy Cows Under Grazing Supplemented with Two Non-Protein Nitrogen Sources
description	Pastures dedicated to cattle production in Venezuela have a low crude protein concentration. One of the nutritional strategies to correct the forage protein deficit is using non-protein nitrogen in the diet. To evaluate the effect of two non-protein nitrogen sources on the metabolic profile of lactating dairy cows, 31 F1 Holstein × Zebu multiparous cows averaging 419 ± 46 kg body weight and 17.1 ± 3.3 kg milk·animal·d-1 were randomly assigned to two treatments for 91 days: 1)59 g·animal-1·d-1 of urea and 2) 64 g·animal-1·d-1 of Optigen II® as slow-release urea (SRU). The animals were grazing (2.12 AU·ha-1) on Urochloa decumbens, U. humidicola, and U. brizantha (7.98-9.61 % CP) and supplied with 4 kg·animal·d-1 of concentrate (15 % CP), and 108, 60, and 108 g·animal·d-1 of mineral, molasses, and bypass fat, respectively. Glucose, total protein, albumin, cholesterol, urea, and β-hydroxybutyrate concentrations, aspartate aminotransferase, and gamma-glutamyl transferase activities were determined in blood serum samples every 28 days. ANOVA analyzed data in a completely randomized design with repeated measures. There were no differences among treatments in the parameters investigated; however, collecting time influenced all of them. No treatment × time interactions were found except for albumin concentration, higher in urea at day 0. The results indicate that under the conditions assayed in the present work, Optigen II® offers no advantage over urea concerning blood indicators of energy and protein metabolism and hepatic functionalityin dairy cows.
format	Artículo
author	Mora Luna, Robert Emilio Herrera Angulo, Ana María Eslava Tovar, José Fernando Isea Chávez, Juan Carlos Enrique Darghan, Aquiles
author_facet	Mora Luna, Robert Emilio Herrera Angulo, Ana María Eslava Tovar, José Fernando Isea Chávez, Juan Carlos Enrique Darghan, Aquiles
author_sort	Mora Luna, Robert Emilio
title	Metabolic Profile of F1 Holstein × Zebu Lactating Dairy Cows Under Grazing Supplemented with Two Non-Protein Nitrogen Sources
title_short	Metabolic Profile of F1 Holstein × Zebu Lactating Dairy Cows Under Grazing Supplemented with Two Non-Protein Nitrogen Sources
title_full	Metabolic Profile of F1 Holstein × Zebu Lactating Dairy Cows Under Grazing Supplemented with Two Non-Protein Nitrogen Sources
title_fullStr	Metabolic Profile of F1 Holstein × Zebu Lactating Dairy Cows Under Grazing Supplemented with Two Non-Protein Nitrogen Sources
title_full_unstemmed	Metabolic Profile of F1 Holstein × Zebu Lactating Dairy Cows Under Grazing Supplemented with Two Non-Protein Nitrogen Sources
title_sort	metabolic profile of f1 holstein × zebu lactating dairy cows under grazing supplemented with two non-protein nitrogen sources
publisher	Corporación colombiana de investigación agropecuaria - AGROSAVIA
publishDate	2024
url	http://hdl.handle.net/20.500.12324/38858 https://doi.org/10.21930/rcta.vol24_num3_art:2858
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spelling	RepoAGROSAVIA388582024-02-02T03:01:37Z Metabolic Profile of F1 Holstein × Zebu Lactating Dairy Cows Under Grazing Supplemented with Two Non-Protein Nitrogen Sources Perfil metabólico de vacas lactantes F1 Holstein × Cebú a pastoreo suplementadas con dos fuentes de nitrógeno no proteico Mora Luna, Robert Emilio Herrera Angulo, Ana María Eslava Tovar, José Fernando Isea Chávez, Juan Carlos Enrique Darghan, Aquiles Alimentación animal - L02 Ganado bovino Alimentación de los animales Suplementos Suero sanguíneo Ganadería y especies menores http://aims.fao.org/aos/agrovoc/c_1391 http://aims.fao.org/aos/agrovoc/c_429 http://aims.fao.org/aos/agrovoc/c_33996 http://aims.fao.org/aos/agrovoc/c_9323 Pastures dedicated to cattle production in Venezuela have a low crude protein concentration. One of the nutritional strategies to correct the forage protein deficit is using non-protein nitrogen in the diet. To evaluate the effect of two non-protein nitrogen sources on the metabolic profile of lactating dairy cows, 31 F1 Holstein × Zebu multiparous cows averaging 419 ± 46 kg body weight and 17.1 ± 3.3 kg milk·animal·d-1 were randomly assigned to two treatments for 91 days: 1)59 g·animal-1·d-1 of urea and 2) 64 g·animal-1·d-1 of Optigen II® as slow-release urea (SRU). The animals were grazing (2.12 AU·ha-1) on Urochloa decumbens, U. humidicola, and U. brizantha (7.98-9.61 % CP) and supplied with 4 kg·animal·d-1 of concentrate (15 % CP), and 108, 60, and 108 g·animal·d-1 of mineral, molasses, and bypass fat, respectively. Glucose, total protein, albumin, cholesterol, urea, and β-hydroxybutyrate concentrations, aspartate aminotransferase, and gamma-glutamyl transferase activities were determined in blood serum samples every 28 days. ANOVA analyzed data in a completely randomized design with repeated measures. There were no differences among treatments in the parameters investigated; however, collecting time influenced all of them. No treatment × time interactions were found except for albumin concentration, higher in urea at day 0. The results indicate that under the conditions assayed in the present work, Optigen II® offers no advantage over urea concerning blood indicators of energy and protein metabolism and hepatic functionalityin dairy cows. Ganadería bovina 2024-02-01T14:57:59Z 2024-02-01T14:57:59Z 2023-10-23 2023 Artículo científico http://purl.org/coar/version/c_970fb48d4fbd8a85 2500-5308 http://hdl.handle.net/20.500.12324/38858 https://doi.org/10.21930/rcta.vol24_num3_art:2858 reponame:Biblioteca Digital Agropecuaria de Colombia instname:Corporación colombiana de investigación agropecuaria AGROSAVIA spa Ciencia y Tecnología Agropecuaria 24 3 1 14 Ali, T. M., Narang, R., Dubey, P. P., & Kaur, S. (2021). 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Dietary polymer-coated urea enhances the goats lactational performance, excretion of microbial purine derivatives and blood metabolites in the semi-arid zone of Iran. Acta Scientiarum - Animal Sciences, 45, e58041. https://doi.org/10.4025/actascianimsci.v45i1.58041 Miranda, M. S., Arcaro, J. R. P., Saran Netto, A., Silva, S. L., Pinheiro, M. G., & Leme, P. R. (2019). Effects of partial replacement of soybean meal with other protein sources in diets of lactating cows. Animal, 13(7), 1403-1411. https://doi.org/10.1017/S1751731118002926 Mota, V. A. C., Prados, L. F., Nascimento, K. S., Fernandes, R. M., Silva, L. F. C. e., Holder, V. B., Pettigrew, J. E., Resende, F. D., & Siqueira, G. R. (2022). Relationship between different sources of non-protein nitrogen and supplementation times on performance and metabolism of grazing Nellore cattle during the dry season. Tropical Animal Health and Production, 54(6). https://doi.org/10.1007/s11250-022-03383-5 Rodriguez, Z., Shepley, E., Ferro, P. 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Metabolic Profile of F1 Holstein × Zebu Lactating Dairy Cows Under Grazing Supplemented with Two Non-Protein Nitrogen Sources

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