Productivity of two Phan Rang sheep lines: the first generation
The aim of this study is to select two sheep lines for braided and fluff wool in the first generation and to continue for selecting in the second and third generation. In experiment 1 (Exp.1), 2500 Phan Rang fluff wool ewes and 260 Phan Rang fluff wool rams were used for selecting 1850 females and 78 males adapting to the study requirements of unified appearance, age, live weight and reproductive organs for good reproduction. Selected above sheep were family-bred to create first generation fluff wool sheep. In Experiment 2 (Exp 2), 1400 Phan Rang braided wool ewes and 130 Phan Rang braided wool rams used to select 920 females and 39 females satisfying the study standards for mating. Selected above sheep were family-bred to create first generation braided wool sheep.
The results in Exp 1 showed that total number of the first generation fluff wool were 2181 heads with the live weigth at birth, 3, 6 and 9 months of age coressponding to 2.60, 14.21, 19.89 and 25.84kg, respectively. The male live weight at all the ages observed were higher than those of the females. The first ages of pregnancy and parturition of the first generation fluffy wool ewes were 293 and 443 days, respectively. Number of kid at birth was 1.32/litter and at 9 months of age their hair was white and fluffy (94.95%). In Exp 2, total number of lambs produced was 1085 heads and the live weight at birth, 3, 6 and 9 months of age was 2.43, 13.83, 20.09 and 25.01 kg, respectively. The male live weight was also higher than that of the females. At 9 months of age the sheep hair was white and fluffy. The first ages for pregnancy and parturition were 290 and 440 day, respectively and average number of kids per litter was 1.27. .
