ArticleTropical animal health and production2025
Variation in genetic diversity evaluated under different breeding schemes in Sahiwal herd.
Article in Tropical animal health and production, 2025. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.
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Abstract
The present study conducted on an organised herd of Sahiwal cattle to elucidate the population structure parameter based on seven decades of genealogical information. The genealogical data (N = 4164) spanning 1949 to 2023 maintained at ICAR-National Dairy Research Institute, Karnal, India was considered with the aim to evaluate depth and accuracy of pedigree, population parameter and genetic diversity in different breeding schemes for whole population and pertinent reference cohort. The animal born from 1979 to 2009 grouped as reference 1 and from 2010 to 2023 as reference 2 cohort. The comprehensiveness of the whole population, reference 1 and reference 2 was over 50% up to the fourth, third and sixth generations respectively. The average relatedness and inbreeding coefficient were 5.92% and 2.69% for whole population, 5.44% and 1.96% for reference 1 and 6.98% and 3.85% for reference 2 respectively. The effective population size varied from 32.31 to 145.51 in the study. The average generation interval varies from 9.2 years in reference 1 to 8.2 years in whole pedigree and 6.6 years in reference 2 under study. The ratio (f
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