Fecha/hora: 16/06/2024 05:05:47

Biblioteca(s): 	INIA La Estanzuela; INIA Treinta y Tres.	
Fecha corriente: 	21/05/2020	
Fecha de la última actualización: 	27/04/2021	
Autoria: 	CLARIGET, J.M.; QUINTANS, G.; BANCHERO, G.; ÁLVAREZ-OXILEY, A.; BENTANCUR, O.; LÓPEZ-MAZZ, C.R.; PÉREZ-CLARIGET, R	
Afiliación: 	JUAN MANUEL CLARIGET BRIZ, INIA (Instituto Nacional de Investigación Agropecuaria), Uruguay; GRACIELA QUINTANS ILARIA, INIA (Instituto Nacional de Investigación Agropecuaria), Uruguay; GEORGGET ELIZABETH BANCHERO HUNZIKER, INIA (Instituto Nacional de Investigación Agropecuaria), Uruguay; ANDREA ÁLVAREZ-OXILEY, Universidad de la República, Facultad de Agronomía, Montevideo, Uruguay.; OSCAR BENTANCUR, Universidad de la República, Facultad de Agronomía, Paysandú, Uruguay.; CARLOS RAFAEL LÓPEZ-MAZZ, Universidad de la República, Facultad de Agronomía, Montevideo, Uruguay.; RAQUEL PÉREZ-CLARIGET, Universidad de la República, Facultad de Agronomía, Montevideo, Uruguay.	
Título: 	Effects of rice bran and glycerin supplementation on metabolic and productive responses of beef cows.	
Año de publicación: 	2020	
Fuente/Imprenta: 	Revista Brasileira de Zootecnia vol.49  Viçosa  2020  Epub May 15, 2020. OPEN ACCESS. DOI: https://doi.org/10.37496/rbz4920190082	
DOI: 	10.37496/rbz4920190082	
Idioma: 	Inglés	
Notas: 	Article history: Received: June 21, 2019/ Accepted: January 19, 2020. Corresponding author: jclariget@inia.org.uy. http://orcid.org/0000-0002-1349-0622. We thank ANII for providing a scholarship POS_2011_1_3522 and FMV_3_2011_1_6713 projects, which financed part of this work; ALUR, for providing glycerin with which this work was conducted; and the staff of EEBR, in particular, Oscar Cáceres, Dorrel Bentancour, and agronomist Carlos Mantero.	
Contenido: 	ABSTRACT:
Fifty-seven primiparous Angus, Hereford, and crossbred cows were used to study the effect of strategic supplementation on metabolic, productive, and reproductive responses. The experiment had two periods including four phases: prepartum supplementation (phase I; 52 days), early postpartum (phase II; 43 days), pre-mating supplementation (phase III; 21 days), and the last phase including mating, gestation, and lactation until weaning (phase IV; 103 days). Phases I and II were considered as period 1, and phases III and IV were considered as period 2. During phase I (&#8722;52±2 days before calving to birth), half of the cows received a supplement (S-), and the rest only grazed native swards (C-). For phase III (59±2 days postpartum [DPP] until mating), cows from the previous treatments (C- or S-) were sorted in two levels of pre-mating supplementation, supplemented (-S) or not supplemented (-C), resulting in four treatment combinations (CC, CS, SC, and SS). The supplement was 1 kg dry matter/cow per day of whole rice bran and 550 mL/cow per day of crude glycerin. In period 1, cows receiving prepartum supplementation increased concentration of cholesterol, glucose, and albumin and decreased concentration of non-esterified fatty acids, beta-hydroxybutyrate, and urea. This improvement in energy balance was reflected in a higher body condition score at calving. Alternatively, in period 2, pre-mating supplementation only increased cholesterol concentration. None of the supplementation periods affected the weaning weight of calves. Prepartum, but not pre-mating, supplementation increased total pregnancy rate. A short prepartum supplementation improves pregnancy rate of primiparous cows managed under extensive production systems. However, there is no additional benefit of supplementation during the pre-mating period.	
Palabras-Clave: 	BEEF CATTLE; GLICERINA; GRAZING; NATIVE PASTURE; PRODUCCIÒN EXTENSIVA; REPRODUCTION; SALVADO DE ARROZ; VACAS DE CARNE.	
Categoría del tema: 	L01 Ganadería	
URL: 	http://www.ainfo.inia.uy/digital/bitstream/item/14431/1/Clariget-RBZ-2019.pdf
https://www.scielo.br/pdf/rbz/v49/1806-9290-rbz-49-e20190082.pdf	
Registro original: 	INIA La Estanzuela (LE)	
Ejemplares: 	LE - (103120-1) - PXI - AP - DD - PP/Revista Brasileira de Zootecnia/2020 -  -  - DIS
TT - (103099-1) - PXI - AP - DD - PP/Revista Brasileira de Zootecnia/2020 -  -  - DIS