Fecha/hora: 09/05/2024 15:01:12

Biblioteca(s): 	INIA La Estanzuela.	
Fecha corriente: 	13/05/2019	
Fecha de la última actualización: 	27/01/2021	
Autoria: 	MENDOZA, A.; WIJMA, R.; MORALES-PIÑEYRUA, J.; CAVESTANY, D.	
Afiliación: 	ALEJANDRO FRANCISCO MENDOZA AGUIAR, INIA (Instituto Nacional de Investigación Agropecuaria), Uruguay.//Departamento de Bovinos, Facultad de Veterinaria, Universidad de la República, San José, Uruguay.; ROBERT WIJMA CABRERA, INIA (Instituto Nacional de Investigación Agropecuaria), Uruguay.//Servicios técnicos vacuno de leche, COVAP, Ctra. Canaleja, CP 14400, Pozoblanco, Spain.; JESSICA TATIANA MORALES PIÑEYRUA, INIA (Instituto Nacional de Investigación Agropecuaria), Uruguay; DANIEL CAVESTANY BOCKING, Departamento de Reproducción, Facultad de Veterinaria, Universidad de la República, Uruguay.//Unidad de Posgrados,Facultad de Veterinaria,Universidad de la República,Uruguay.	
Título: 	Carbohydrate source offered in the prepartum diet did not affect postpartum metabolic status or milk yield in dairy cows.	
Año de publicación: 	2019	
Fuente/Imprenta: 	Animal, Volume 13, Issue 10, 2019, Pages 2289-2296. Doi: https://doi.org/10.1017/S1751731119000387	
ISSN: 	1751-732X (Online)	
DOI: 	10.1017/S1751731119000387	
Idioma: 	Inglés	
Notas: 	Article history: Received 10 July 2018.// Accepted 5 February 2019//Published online: 05 March 2019/ Available online 7 December 2020.	
Contenido: 	Abstract: Increasing the provision of non- &#64257;brou s carbohydrate s (NFC) during the prepartum period is a feeding strategy that has been recommended to facilitate the transition to the onset of lactation and improve dairy cow performance, but results ar e contradictory, probably because most studies have confounded the effect s of level and source of energy. The objective of this experiment was to evaluate the effect of the source of carbohydrate offered in the prepartum diet on postpartum cow performance. Holstein dairy cows ( n = 24) were assigned to receive diets with either low (LNFC ), or high (HNFC) levels of NFC during the last 3 weeks before expec ted calving date according to a randomized complete block design. Soybean hulls and corn grain were the main energy ingredient s in the LNFC and HNFC total mixed rations (TMR), respectively, and diet s were designed t o be isocaloric and isopoteic. After calving, all cows were managed as a single group until da y 56 postpartum and grazed on improved pastures and were supplemented with a TMR. Body condition score evaluation and blood sampling were performed weekly throughout the experimental period to monitor the metabolic status of the animals. Prepartum glucose concentrations tended to be greater in HNFC than LNFC, but there was no effect on prepartum or postpartum insulin concentrations. Although nutrient intake was greater in the immediate week after calving in HNFC than LNFC, treatment did not affect milk yield and composition. In conclusion, increasing the NFC intake during the prepartum period, at a similar level of energy and protein intake , had a margin al residual effect on postpartum intake, and did not affect metabolic status or milk production .	
Palabras-Clave: 	DAIRY COW; GRAZING; HIDRATOS DE CARBONO NO FIBROSOS; NON-FIBROUS CARBOHYDRATES; PERÍODO DE TRANSICIÓN; STARCH; TRANSITION PERIOD; VACA LECHERA.	
Thesagro: 	ALMIDÓN; PASTOREO; PRODUCCION LECHERA.	
Categoría del tema: 	--	
Registro original: 	INIA La Estanzuela (LE)	
Ejemplares: 	LE - (102853-1) - PXI - AP - DD - PP/Animal/ 2019 -  -  - DIS