Data/hora: 09/06/2024 06:25:04

Biblioteca(s): 	Embrapa Pantanal.	
Data corrente: 	22/05/1996	
Data da última atualização: 	22/05/1996	
Autoria: 	HART, R. H.	
Título: 	Stocking rate theory and its application to grazing on rangelands.	
Ano de publicação: 	1978	
Fonte/Imprenta: 	In: INTERNATIONAL RANGELAND CONGRESS, 1., 1978, Denver. Proceedings. Denver: [s.n.] 1978. p.547-550.	
Idioma: 	Inglês	
Conteúdo: 	Under range conditions, gain per grazing animal is very nearly approximated by a model in which gain remains constant below a critical stocking rate, and decreases linearly as sto- cking rate increases above the critical rate. This model conflicts with the model in which, when forage supply is limiting, gain increases linerarly with increasing forage per animal or decreases hyperbolically with its inverse, animals per unit of forage, which is synonymous with grazing pressure or stocking rate. Although the latter model is valid at any given time, it is not valid for an entire grazing season on rangeland. Changes in forage growth rate, availability, and quality, combined with changes in nutritional requirements of the grazing animal, produce constant changes in the shape of the response curve an the value of the critical stocking rate. Over the grazing season, the mean of these curves very nearly ap- proximates constant gain below the critical stocking rate and a linear decrease thereafter. This model can be used to determine the economically optimum stocking rate, or for eco- nomic comparisons of range improvement practices.	
Palavras-Chave: 	Aplicacao; Application; Grazing on rangelands; Stocking rate theory; Teoria de taxa.	
Thesagro: 	Pastagem.	
Categoria do assunto: 	--	
Registro original: 	Embrapa Pantanal (CPAP)	
Exemplares: 	CPAP - (31927-1) - ADD - SP - -- - SP2403 -  - 2403 - DIS