Data/hora: 24/04/2024 16:34:54

Biblioteca(s): 	Embrapa Pantanal.	
Data corrente: 	12/04/1999	
Data da última atualização: 	12/04/1999	
Autoria: 	HIGHT, G. K.	
Afiliação: 	Ruakura Agricultural Research Centre, Department of Agriculture, Private Bag, Hamilton.	
Título: 	The effects of undernutrition in late preganancy on beef cattle production.	
Ano de publicação: 	1966	
Fonte/Imprenta: 	New Zealand Journal of Agricultural Research, v.9, p.479-490, 1966.	
Idioma: 	Inglês	
Conteúdo: 	A study of the effects of a high, in contrast with a very low, plane of nutrition prior to calving,  on the performance of hill-country beef cows and their calves is described. On 8 June 1964, 122 three- to eight-year-old pregnant Aberdeen Angus cows were allocated to two equal groups. Thereafter, one group was maintained on a high plane of nutrition and the other group on a low plane of nutrition for, on average 90 and 83 days respectively until calving. All cows were offered a high plane of nutrition after calving. Low plane cows lost on average 155 Ib, and high plane cows 28 Ib between initial liveweight and post-partum. After calving low plane cows rapidly recovered in liveweight and by weaning five months later, had compensated for their previous liveweight loss. The number of calves present at weaning as a percentage of the number of cows at the start of the experiment was 93.4% and 75.4% for the high and low pre-calving treatments respectively. Low plane calves were 12 Ib or 20% lighter than plane calves at birth. The mean difference in calf livewweights between treatments was 36.4 Lb at weaning. 	
Palavras-Chave: 	Gravidez; Production.	
Thesagro: 	Gado de Corte; Nutrição; Produção.	
Thesaurus Nal: 	beef cattle; nutrition; pregnancy.	
Categoria do assunto: 	--	
Registro original: 	Embrapa Pantanal (CPAP)	
Exemplares: 	CPAP - (38134-1) - ADD - SP - -- - SP4581 -  - 4581 - DIS