Data/hora: 28/05/2024 15:54:35

Biblioteca(s): | Embrapa Pantanal.
Data corrente: | 11/09/1995
Data da última atualização: | 11/09/1995
Autoria: | MORAES MARROS, H.; BIZUTTI, O.; REINER, U. R.; TABARELLI NETO, J. F.
Título: | Observations on the reproductive patterns in Zebu cattle raised in range conditions in the state of S. Paulo - Brazil. II. Some observations on the calving intervals.
Ano de publicação: | 1966
Fonte/Imprenta: | In: CONGRESSO DE VETERINARIA, MEDICINA E ZOOTECNIA, 5., 1966, Caracas. Proceedings. Caracas: [s.n.] 1966. p.406-409.
Idioma: | Inglês

Conteúdo:

From a large herd of zebu cattle (Indu - Brazil), raised in range conditions, the calving in-
tervals of 148 cows have been examined. The sires were kept with cows all over the year
in the ratio of 1:25. The mean interval between the first and second calving was 441 +- 21
days; S.D. = 125. From the same cows the interval of the subsequent calvings were also
noted, so, for some animals observations until the 6th an 7th calving intervals have been included. In this groups the mean interval of all calvings was 477 +- 12 days; S.D. = 134. 
The mean interval between the first and second calving was significantly lower than that
among the subsequent ones.

Palavras-Chave: | Condicao extensiva; Range conditions; Sao Paulo.
Thesagro: | Gado; Reprodução.
Thesaurus Nal: | Brazil; cattle; reproduction; zebu.
Categoria do assunto: | --
Registro original: | Embrapa Pantanal (CPAP)
Exemplares: | CPAP - (29638-1) - ADD - SP - -- - SP1120 -  - 1120 - DIS