Data/hora: 06/06/2024 08:15:29

Biblioteca(s): | Embrapa Caprinos e Ovinos.
Data corrente: | 01/08/1992
Data da última atualização: | 01/08/1992
Autoria: | KIRMSE, R. D.; PROVENZA, F. D.; MALECHEK, J. C.
Título: | Clearcutting brazilian semiarid tropics: observations on its effects on small ruminant nutrition during the dry season.
Edição: | 5
Ano de publicação: | 1987
Fonte/Imprenta: | Journal of Range Management, v.40, n.5, p.428-432, 1987.
Idioma: | Inglês
Conteúdo: | Small ruminant production in northeast Brazil is limited by ( prolonged nutritional stress during the dry season. Our study assessed the effects of clearcutting woody vegetation on the nutrition of goats and sheep during the initial dry season following a ciearing. Dry matter intake (g eday.l) was higher for animaIs on (cleared than on uncleared areas (818 vs. 627; P<0.05). Extrusa a from esophageally fistulated animaIs grazing cleared, as opposed f to uncleared, areas was more digestible (52 vs. 47%; P<0.05), was c similar in crude protein (7.1 vs. 7.1%; P>0.05), and was lower in r neutral detergent fiber (49 vs. 51%; P<0.05) and lignin (14 vs. 16%; P<0.05). Intake and diet quality declined on both cleared and uncleared areas as forage availability declined. AnimaIs on cleared areas benefitted from increased availability of herbs and of biomass from palatable trees that coppiced and retained green leaves throughout much of the dry season. AnimaIs on uncleared areas relied heavily on lest lifter from trees, which provided a poorer quality, but persistent, source of forage throughout the dry season.
Palavras-Chave: | Brasil; Coppice; Deferred grazing; Disponiblidade; Estacao seca; Leaf litter; Nordeste; Semiarid tropics.
Thesagro: | Caprino; Consumo; Dieta; Ovino; Pastejo.
Thesaurus Nal: | clearcutting; dry season; goats; nutrition; sheep.
Categoria do assunto: | --
Registro original: | Embrapa Caprinos e Ovinos (CNPC)
Exemplares: | CNPC - (2625-1) - ADC - AP - -- -  -  - 1992.00000 - DIS