[Genetic variability of growth in sheep grown at the animal husbandry research center of Dahra].
Data on growth performances of 778 Peulpeul and Touabire sheep were collected over five years (1983-1987) in APRC of Dahra. Studied parameters were: birth weight (BBW), one month weight (MBW), weaning weight (WBW) yearling weight (YBW) and growth rate between adjacent stages of growth. BBW, MBW, WBW and YBW are: 3.6 +/- 0.6 kg, 9.5 +/- 1.8 kg; 17.5 +/- 3.5 kg; 30.6 +/- 4.3 kg. Growth rates were 197.0 +/- 51.2 g between birth and one month (MGR), 87.2 +/- 28.1 g, between one month and weaning (WGR) and 50.8 +/- 15.3 g, between weaning and yearling (YGR). Year and season of birth, dam parity, prolificity, sex and race had significant effect on most of the parameters studied. The heritability estimates were 0.50 +/- 0.14 (BBW), 0.52 +/- 0.15 (MBW), 0.71 +/- 0.18 (WBW), 0.44 +/- 0.13 (MGR) and 0.60 +/- 0.16 (WGR). High and positive correlations existed between BBW and the other growth components.
Missohou
A
A
E.I.S.M.V., Dakar Sénégal.
Sow
R
R
Nahar
M T
MT
Gongnet
P
P
D000822:Animal Husbandry; D000818:Animals; D014644:Genetic Variation; D012675:Senegal; D012756:Sheep / Q000235:genetics* / Q000254:growth & development*
Variabilité génétique de la croissance chez les moutons élevés au centre de recherche zootechnique (CRZ) de Dahra.