Data/hora: 14/06/2024 04:11:25

Biblioteca(s): | Embrapa Pantanal.
Data corrente: | 31/05/1996
Data da última atualização: | 31/05/1996
Autoria: | KIRBY, D. R.; STUTH, J. W.
Título: | Seasonal diurnal variation in composition of cow diets.
Ano de publicação: | 1982
Fonte/Imprenta: | Journal of Range Management, v.35, n.1, p.7-8, Jan. 1982.
Idioma: | Inglês
Conteúdo: | Seasonal diets between fall 1977 and spring 1979 were collected in morning and evening from esophageally fistulated cows in the Post Oak Savannah of east-central Texas. Chemical content of diurnal diets were similar within a season excep CP was higher in evening collections as compared to morning collections during fall. Cows appeared to select for energy (IVDOM) over CP. Botanical composition of morning and evening diets differed only during summer. Since the cow spent more time during hot summer afternoons in the shade of woody plants, less grass and more forbs, vines, and woody vegetation were selected. Research based on morning diet collections only might result in biased samples. Recognition of nutritional and environmental stress with potential to alter grazing behavior of animals is critical for accurate sampling of livestock diets.
Palavras-Chave: | Composicao; Composition; Cow; Seasonal diurnal variation; Variacao diurna sazonal.
Thesagro: | Dieta; Nutrição; Vaca.
Thesaurus Nal: | diet; nutrition.
Categoria do assunto: | --
Registro original: | Embrapa Pantanal (CPAP)
Exemplares: | CPAP - (32319-1) - ADC - SP - -- - SP2729 -  - 2729 - DIS