GROWTH AND DEVELOPMENT OF PUREBRED AND CROSSBRED LAMBS OF THE KAZAKH FAT-TAILED COARSE-WOOLED BREED
DOI:
https://doi.org/10.52269/22266070_2023_2_179Keywords:
purebred lambs, crossbred lambs, live weight, absolute growth, average daily gain, body measurements, body indexesAbstract
The article presents the results of studies of the growth and development of purebred and crossbred lambs of the Kazakh fat-tailed coarse-wooled breed. The live weight of purebred and crossbred Kazakh fat-tailed coarse-wooled lambs at birth and during the growing period was at a satisfactory level. The live weight of the experimental purebred and crossbred lambs of the Kazakh fat-tailed coarse-wooled breed at birth was in the range of 4.1-4.5 kg, on the 20th, 60-120th day respectively, 8.2-9.1, 16.8-17.9 and 31.5-34.4 kg. The average milk yield of purebred ewes was 25.85 kg, of crossbreeds – 27.5 kg. The average daily gain in live weight of purebred lambs for 60 days was 211.7-245.2 g and 223.3-275.0 g, that is, the difference was observed within 33.5 and 51.7 g or 15.8-23.1 %.
In addition, the article calculates and presents measurements and physique indices of lambs at birth and at the age of 4.5 months.
