Some factors that influence the birth weight of the Santa Inés breed lambs in the state of Sergipe
Birth weigths (BrW) of lambs collected from 1983 to 1989 by the Centro Nacional de Pesquisa de Coco (CNPCO), Arcaju, SE, at the Queimadas Experimental Farm in the municipality of Frei Paulo, included 720 total animals (174 males and 183 females born singally, and 193 males and 170 females born as twins). The data were analyzed by means of a linear model fitted by least squares procedures. Overall mean BrW was 3.69±0.02 kg. Sex of offspring, type of birth, and year of birth were not significant source of variation. Month of birth did affect BrW, lambs born in March, April, May and June weighing 2.81±.07, 3.37±.07, 3.89±.05, and 4.70±.07 kg, respectively. Weigth of ewe al lambing had a quadratic effect on BrW, the heaviest being born of ewes weighing 33.67 kg.
| Auteurs principaux: | , , |
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| Format: | Digital revista |
| Langue: | por |
| Publié: |
Asociacion Latinoamericana de Produccion Animal
1996
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| Accès en ligne: | https://ojs.alpa.uy/index.php/ojs_files/article/view/2934 |
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