Data/hora: 20/06/2024 19:11:19

Biblioteca(s): | Embrapa Caprinos e Ovinos.
Data corrente: | 21/01/2016
Data da última atualização: | 21/01/2016
Autoria: | FERNÁNDEZ, A. A. O.; MACHADO, F. H. P.; MENEZES, F. A. B.; FIGUEIREDO, E. A. P. de.
Afiliação: | EPACE - CE - Quixadá, CE, Brazil.
Título: | Reproductive performance of native goats versus hair sheep on different pasture types in Ceara State in Brazil.
Ano de publicação: | 1982
Fonte/Imprenta: | In: INTERNATIONAL CONFERENCE ON GOAT PRODUCTION AND DISEASE, 3., 1982, Tucson. Proceedings... Scottsdale: Dairy Goat Journal, 1982. p. 366
ISBN: | 0930848179.
Idioma: | Inglês
Conteúdo: | This study was conducted for three consecutive years to evaluate proportions of parturitions and twinnings and mortality of indigenous goats (SRD) and sheep (Morada Nova) on three types of pastures, namely, native caatinga, cleared and cultivated (buffel) pastures, in hot tropical Northeast Brazil. The overall proportion of parturitions was significantly different in three years, maximum percentage of births occuring in second year and minimum in first. There was also a significant difference between species, percent kiddings being 56, 92 and 71 and lambings being 89, 88 and 87 percent in the three years respectively. This gave a significant year x species interaction and showed that kidding rate was more susceptible to environmental differences. There was no overall difference between pastures but there was some indication of a pasture x species interaction. The goats seemed to have done better on native caatinga and sheep on cultivated pastures. The year, species and year x species were significant in mortality. The survivability of sheep varied from 88 percent to 98 in second and 85 in third years, and in goats, the respective figures were: 93, 95 and 99. Thus, goats had better survivability rates. This pattern resulted into a significant year x species interaction. Again there was some indication of species x pasture interaction and perusal of data revealed that goats survived equally better on all pastures but sheep survived better on cleared and cultivated pastures. Thus, caatinga pastures were good for goats but worst for sheep. The twinning rate did not differ between years or pastures, but there was a marked difference between species. The goats produced 42 percent multiple births and sheep 26 percent
Palavras-Chave: | Feed crops.
Thesagro: | Alimento para animal; Caatinga; Caprino; Mortalidade; Ovino; Parto; Pastagem nativa; Planta forrageira; Reprodução animal.
Thesaurus Nal: | Animal feeding; Brazil; Goats; Mortality; Parturition; Reproduction; Sheep.
Categoria do assunto: | L Ciência Animal e Produtos de Origem Animal
Registro original: | Embrapa Caprinos e Ovinos (CNPC)
Exemplares: | CNPC - (29833-1) - ADD - PL - PP - 636.39 - I61p - 2006.02863 - DIS