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Genetic divergence studies on reproduction and production traits among Gir crosses

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Abstract

The study was undertaken to estimate the genetic divergence among FG, IFG, FJG, IFJG, and R crosses of Gir cow on the basis of age at first conception, age at first calving, and lactation milk yield per day of lactation length using Mahalanobis D2 statistics. The genetic groups’ influence was significant (P < 0.01) for all traits separately and simultaneously (V test) based on three traits. The differences in the D2 values among all the genetic groups’ combinations were significant except IFG with R genetic group combination. The total D2 values for age at first conception (AFCon), age at first calving (AFC), and lactation milk yield per day of lactation length (LMY/LL) were 18.85, 0.06, and 9.01 respectively. The percent contribution of AFCon to the total D2 value was maximum as 67.51 followed by LMY/LL as 32.27 and lowest of AFC as 0.22. Among the clusters formed on the basis of D2 values, IFG, IFJG, and R formed one cluster, whereas, FG and FJG formed second cluster. The magnitude of inter-cluster distance was greater than intra-cluster distance.

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Acknowledgements

The authors extend their sincere thanks to MPKV, Rahuri, for providing the facilities for conducting the present investigation.

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Authors and Affiliations

  1. Department of Animal Husbandry and Dairy Science, Mahatma Phule Krishi Vidyapeeth, Rahuri, Maharashtra, 413722, India

    Mahendra Gorakh Mote & Sanjay Mandakmale

  2. Department of Mathematics, Mahatma Phule Krishi Vidyapeeth, Rahuri, Maharashtra, 413722, India

    Sangita Uddhav Bhoite

  3. Department of Animal Genetics and Breeding, LUVAS, Hissar, Hariana, 125004, India

    Yogesh Chandrakant Bangar

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  1. Mahendra Gorakh Mote
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  2. Sangita Uddhav Bhoite
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  3. Yogesh Chandrakant Bangar
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  4. Sanjay Mandakmale
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Correspondence to Mahendra Gorakh Mote.

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Mote, M.G., Bhoite, S.U., Bangar, Y.C. et al. Genetic divergence studies on reproduction and production traits among Gir crosses. Trop Anim Health Prod 50, 1881–1885 (2018). https://doi.org/10.1007/s11250-018-1639-y

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