|
Registro Completo |
|
Biblioteca(s): |
Embrapa Pantanal. |
|
Data corrente: |
08/06/1995 |
|
Data da última atualização: |
08/06/1995 |
|
Autoria: |
BARROS, H. M.; TABARELLI NETO, J. F.; BIZUTTI, O.; REINER, U. R. |
|
Título: |
Observations on the reproductive patterns in zebu cattle raised in range conditions in the state of S. Paulo - Brazil. V. Some observations on the calving intervals. |
|
Ano de publicação: |
1967 |
|
Fonte/Imprenta: |
Arquivos da Escola de Veterinaria, UFMG, v.19, p.59-63, 1967. |
|
Idioma: |
Inglês |
|
Conteúdo: |
From a large herd of Zebu cattle (Indubrasil), raised in range conditions the calving intervals of 134 cows have been examined. The sires were kept with the cows, throughout the year in the ratio of 1:25, so unrestricted mating was allowed. The calves were weaned with about 7 months of age. The mean between the 1st and 2nd calving was: 441 +- 21 days (S.D. = 125).The mean interval for the subsequent calving (from 2nd to 7th) was: 477 +- 12 days (S.D. = 134). By analysis of variance the interval between the 1st and 2nd calving shown to be significantly lower thant that between the subsequent calf drops (F = 5.577). The possible influence of the suckling effect has been discussed. |
|
Palavras-Chave: |
Bovine; Calving intervals; Intervalo entre partos; Sao Paulo. |
|
Thesagro: |
Bovino; Reprodução. |
|
Thesaurus Nal: |
Brazil; reproduction; zebu. |
|
Categoria do assunto: |
-- |
|
Marc: |
LEADER 01480naa a2200265 a 4500
001 1784410
005 1995-06-08
008 1967 bl --- 0-- u #d
100 1 $aBARROS, H. M.
245 $aObservations on the reproductive patterns in zebu cattle raised in range conditions in the state of S. Paulo - Brazil. V. Some observations on the calving intervals.
260 $c1967
520 $aFrom a large herd of Zebu cattle (Indubrasil), raised in range conditions the calving intervals of 134 cows have been examined. The sires were kept with the cows, throughout the year in the ratio of 1:25, so unrestricted mating was allowed. The calves were weaned with about 7 months of age. The mean between the 1st and 2nd calving was: 441 +- 21 days (S.D. = 125).The mean interval for the subsequent calving (from 2nd to 7th) was: 477 +- 12 days (S.D. = 134). By analysis of variance the interval between the 1st and 2nd calving shown to be significantly lower thant that between the subsequent calf drops (F = 5.577). The possible influence of the suckling effect has been discussed.
650 $aBrazil
650 $areproduction
650 $azebu
650 $aBovino
650 $aReprodução
653 $aBovine
653 $aCalving intervals
653 $aIntervalo entre partos
653 $aSao Paulo
700 1 $aTABARELLI NETO, J. F.
700 1 $aBIZUTTI, O.
700 1 $aREINER, U. R.
773 $tArquivos da Escola de Veterinaria, UFMG$gv.19, p.59-63, 1967.
Download
Esconder MarcMostrar Marc Completo |
|
Registro original: |
Embrapa Pantanal (CPAP) |
|
