Data/hora: 01/06/2024 15:17:33

Biblioteca(s): 	Embrapa Pantanal.	
Data corrente: 	07/02/1996	
Data da última atualização: 	20/07/2012	
Autoria: 	CARLO, I.; MENDOZA, R.; VELEZ, J.	
Título: 	Evaluation of different feeding systems in beef cattle production.	
Ano de publicação: 	1972	
Fonte/Imprenta: 	Journal of Agriculture of the University of Puerto Rico, v.56, n.4, p.327-336, Oct. 1972.	
Idioma: 	Inglês	
Conteúdo: 	Different feeding systems for beef cattle production were studied at the Corozal and Isabela Substations of the Agricultural Experiment Station, University of Puerto Rico. The data for each location were analyzed separately. Observations at Isabela indicate that  Pangola-grass soilage is not suitable for rearing beef cattle. Ad libitum feeding of a bulky ration showed no comparative advantage over grazing alone in weight gains of the heifers. Similarly, a finishing period on ad libitum bulky feed was no better than grazing alone. The dressing percentage for the ad libitum bulky-fed group was 64.26 percent compared to 62.30 percent for the group on grazing alone and to 62.23 percent for the group o  grazing plus a finishing period on ad libitum bulky feed. There was no significant difference between these two latter groups. The soilage group was not slaughtered. Data from the Corozal Substation indicate that corn supplementation was superior to the other treatment in regard to weight gains of the heifers. However, when economical aspects are considered, corn supplementation may prove unjustifiable. The molasses supplementation was no better than grazing alone. The dressing percentage of the corn supplemented heifers was significantly different from grazing alone (60.70 vs 59.03 percent) and from grazing plus concentrate supplementation when pastures were poor (60.70 vs. 59.10 percent). Dressing data for the molasses-fed group (60.40 percent) were not statistically analyzed becau-
se individual liveweights of heifers were not obtained for reference against the corresponding "hor carcass" weights.	
Palavras-Chave: 	Feeding systems; Production.	
Thesagro: 	Gado de Corte; Produção; Sistema de Alimentação.	
Thesaurus Nal: 	beef cattle; Puerto Rico.	
Categoria do assunto: 	--	
Registro original: 	Embrapa Pantanal (CPAP)	
Exemplares: 	CPAP - (30612-1) - ADD - SP - -- - SP1623 -  - 1623 - DIS