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      EVALUASI GENETIK SIFAT PERTUMBUHAN ANAK DARI JANTAN MUDA UJI PROGENI PADA KAMBING PE

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      Date
      2011
      Author
      Anggraeni, Anneke
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      Abstract
      Progeny test on milk transmitting ability in young bucks requires to considere growth traits of their kids due to the existence of positive genetic correlation between growth and milk traits. This study was aimed to estimate breeding values of young PE bucks as participants of progeny test based on birth weight of their kids. Effects of kidding year, kidding season, sex, and litter size on birth weight were analyzed by General Linear Model. Breeding values of young PE bucks was evaluated based on birth weight of their kids, and was analyzed by Contemporary Comparison (CC) method. There were six young PE bucks included in the progeny test for birth weight trait, with number of their kids within the range of 14 – 33 hds. The highest average of birth weight was obtained from young buck of no.179 for 3.01 kg (2.00 to 4.60 kg), whereas the lowest one was from that of no. 178 for 2.36 kg (1.40 to 3.80 kg). Litter size, kidding season, and kidding year were dominant factors (P < 0.05) in affecting birth weight, but sex (P > 0.05) was not, although male kids in reality had heavier birth weight than female kid (2.94 kg vs. 2.80 kg). Heritability of birth weight of PE kids was relatively high for h2 = 0.26. Although the regression coefficients (2b) differed widely among young bucks, but they did not change the rank of the progeny test results based on the estimated values of CC or Breeding Value (BV). Young PE buck no. 19 was proved at the highest rank, followed by Cariu at the second and no. 2031 at the third in transmitting birth weight ability.
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      http://repository.ipb.ac.id/handle/123456789/76815
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      Indonesia DSpace Group 
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      Universitas Jember Digital Repository