Obtaining and Targeted Breeding of High-performance Dairy Cows Utilizing Advanced Technology
Keywords:
characteristic, development, genotype, growth, pair selection, traitAbstract
As a result of individual customized pair selection, the genetic potential for milk productivity of daughters of the bull with property number Agadis AB 1217 was 10,000 kg of milk, with the main selection traits being milk fat + milk protein at 743 kg. Meanwhile, the genetic potential for milk productivity of daughters of the bull with property number Lolis AB 121723 was 9,702 kg of milk and 720 kg (milk fat + milk protein), respectively. The daughters of bull Lolis AB 121723 showed a genetic potential of 9,702 kg milk and 720 kg combined milk fat and protein. The heifers born from the pairing and raised with advanced technology reached Live weight of 477 kg at the age of 18 months which is 23 kg (or 4.6%) below the first-class breed standard requirement. The linear growth data demonstrates the development of well-proportioned body formation in heifers. The coefficient of variation (cv) of 3, 6, and 12 months of age is between 0.6-1.9 %. These findings demonstrate weight uniformity in heifers across all studied age groups, indicating genotypic consistency and homogeneity in animals produced through heterogeneous pair selection and reared using advanced technologies. These traits represent crucial applied and prospective components for selection programs and genetic improvement complexes.
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