RT Journal
T1 ESTIMATION OF VARIANCE COMPONENTS AND SOME GENETICS PARAMETERS FOR MILK YIELD IN WATER BUFFALO POPULATION RAISED IN ISTANBUL
A1 K. Yazgan
A1 M. İ. Soysal
A1 Y. Öner
A1 E. K. Gürcan
A1 E. Ö. Ünal
JF Journal of Animal and Plant Sciences
JO JAPS
SN 1018-7081
VO 34
IS 6
SP 1519
OP 1526
YR 2024
FD 2024/12/01
DO DOI https://doi.org/10.36899/JAPS.2024.6.0829
AB <p><span lang="EN-GB">This study aims to estimate variance components, heritability, and repeatability of lactation yield (270 day), as well as estimated breeding value for 879 water buffalo lactation records for 615 animals belonging to the water buffalo breeding project using BUGA software. The model was constructed by using all available the pedigree information. Herd, season and year were used as fixed effects while lactation length and age were used as covariate. Random environment variance, genotypic variance and permanent environment variance values were estimated as 48388.61&plusmn;0.0003 kg<sup>2</sup>, 12003.08&plusmn;0.0003 kg<sup>2</sup>&nbsp;and 9567.92&plusmn;0.0003 kg<sup>2&nbsp;</sup>while heritability (h<sup>2</sup>) and repeatability (r) of lactation yield were estimated as 0.17 &plusmn;0.162 and 0.30, respectively. The study concluded that the heritability of milk yield was low and in order to achieve more effective genetic improvement, the project should be organized in a way that allows for the identification of sire records for the animals involved.</span><span lang="EN-GB">In addition, the environmental conditions in which buffalos are raised must be brought closer to the conditions required by the animals.</span></p>
K1 water buffalo, estimated breeding value, BUGA software, genetic parameter
PB Pakistan Agricultural Scientists Forum
LK https://thejaps.org.pk/AbstractView.aspx?mid=2024-JAPS-2244