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Aptitude to machine milking of Merino Beira Baixa ewes. 1.Morphological characteristics of the udder
Orientador(es)
Resumo(s)
For morphological characterization of the udder of «Merino Beira Baixa» ewes (double aptitude), from centre interior of Portugal, 4 series of measurements were performed with 3 weeks intervals, since the beginning of milking (57•7 days after lambing). We have observed the next parameters: length, width, volume and posterior area of udder; width between teats and their relative positions, the angle between the teats and the vertical axis, length and width of teats; cisternal width. Daily milk production represents about 80 % of the udder volume and the correlation coeficient for these parameters (r=0.54), was the highest one founded. Observed coeficient correlation between daily milk production and width between teats was r=0.53. All studied variables (morphological characteristics), explain 38,13 % of milk production variabi¬lity. Udder volume and width between teats explain 37.99 % of the same variability. Results suggest that udder morphology of «Merino Beira Baixa» ewes is a weak indicator of animal’s milk value.
Descrição
Palavras-chave
Merino da Beira Baixa Milking Milking machine Ewe
Contexto Educativo
Citação
ANDRADE, C.S.C.R. ; CARREIRO, F.M. ; ALMEIDA, L.M. (1989) - Aptitude to machine milking of Merino Beira Baixa ewes. 1.Morphological characteristics of the udder. In International Symposium on Machine Milking of Small Ruminants, 4, Kibbutz Shefayim, Israel, 13-19 Sept.