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Studies on intrauterine development index in Sahiwal cattle



Studies on intrauterine development index in Sahiwal cattle



Thesis Abstracts, Haryana Agricultural University 5(1): 21-22



Data were obtained between 1915 and 1971 on the birth weights of 812 male and female Sahiwal calves, and on the duration of pregnancy of their dams. The intra-uterine development index was calculated as the ratio of birth weight to pregnancy duration. For calvings involving 389 males and 423 females , the index averaged 0.079 and 0.077 resp. (CVs = 11.06 and 12.69%); the h2 of the index was 0.125 for males and 0.203 for females. The index was affected by year of calving but not by parity.

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Accession: 000756047

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