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2014 | 23 | 1 |

Tytuł artykułu

Genetic evaluation of the growth of beef bulls at a performance test station

Warianty tytułu

Języki publikacji

EN

Abstrakty

EN
Genetic evaluation of the growth of bulls at a performance test station was performed using a single-trait model (STAM) and multi-trait models that included pre-weaning growth. The growth of the bulls was represented by the average daily gain in the test (ADGT). Pre-weaning growth was expressed as average daily gains from birth to 120 days of age (ADG120) and from 120 to 210 days of age (ADG210). The coefficient of heritability across breeds was estimated by all models to be approximately 0.17 for ADG120, 0.13 for ADG210, and 0.27 for ADGT. Some tested models included the random effect of direct permanent environment. All testing criteria prioritized the multi-trait model incorporating the direct permanent effect, which was the most important effect in the model. The values of Spearman’s coefficients of correlation between breeding value predicted by the single-trait and multi-trait models were 0.93, and in the particular models that evaluated 10%, 5% and 1% of the best sires, the values ranged from 0.76 to 0.83.

Słowa kluczowe

Wydawca

-

Rocznik

Tom

23

Numer

1

Opis fizyczny

p.37-44,ref.

Twórcy

autor
  • Department of Genetics and Breeding, Faculty of Agrobiology, Food and Natural Resources, Czech University of Life Sciences Prague, 165 21 Prague, Czech Republic
  • Institute of Animal Science, 104 00 Prague - Uhnneves, Czech Republic
autor
  • Institute of Animal Science, 104 00 Prague - Uhnneves, Czech Republic
autor
  • Institute of Animal Science, 104 00 Prague - Uhnneves, Czech Republic

Bibliografia

  • Bartoň L., Kudrna V., Bureš D., Zahrádková R., Teslík V., 2007. Performance and carcass quality of Czech Fleckvieh, Charolais and Charolais × Czech Fleckvieh bulls fed diets based on different types of silages. Czech J. Anim. Sci. 52, 269–276
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  • De Rose E.P., Wilton J.W., Schaeffer L.R., 1988. Estimation of variance-components for traits measured on station-tested beef bulls. J. Anim. Sci. 66, 626–634
  • Eriksson S., Näsholm A., Johansson K., Philipsson J., 2002. Genetic analysis of post-weaning gain of Swedish beef cattle recorded under field conditions and at station performance testing. Livest. Prod. Sci. 76, 91–101
  • Henderson C.R., 1975. Best linear unbiased estimation and prediction under selection models. Biometrics 31, 423–447
  • Kaps M., Lamberson W., 2004. Biostatistics for Animal Science. CABI Publishing (UK), pp. 445
  • Konstantinov K.V., Brien F.D., 2003. Influence of sire by year interactions on the direct- maternal genetic correlation for weaning weight of Western Australian Merino sheep. Austr. J. Agr. Res. 54, 723–72
  • Krejčová H., Mielenz N., Přibyl J., Schuler L., 2007. Estimation of genetic parameters for daily gains of bulls with multi-trait and random regression model. Arch. Tierzucht 50, 37–46
  • Krejčová H., Přibyl J., Přibylová J., Štipkova M., Mielenz N., 2008. Genetic evaluation of daily gains of dual-purpose bulls using a random regression model. Czech J. Anim. Sci. 53, 227–237
  • Meyer K., 1998. Estimating covariance functions for longitudinal data using a random regression model. Genet. Sel. Evol. 30, 221–240
  • Misztal I., Tsuruta S., Strabel T., Auvray B., Druet T., Lee D.H., 2002. BLUPF90 and related programs (BGF90). In: 7th World Congress on Genetics Applied to Livestock Production. Montpellier (France)
  • Nephawe K.A., Maiwashe A., Theron H.E., 2006. The effect of herd of origin by year on post-weaning traits of young beef bulls at centralized testing centres in South Africa. S. Afr. J. Anim. Sci. 36, 33–39
  • Přibyl J., Krejčová H., Přibylová J., Misztal I., Tsuruta S., Mielenz N., 2008b. Models for evaluation of growth of performance tested bulls. Czech J. Anim. Sci. 53, 45–54
  • Přibyl J., Misztal I., Přibylová J., Šeba K., 2003. Multiple-breed, multiple-traits evaluation of beef cattle in the Czech Republic. Czech J. Anim. Sci. 48, 519–532
  • Přibyl J., Přibylová J., Krejčová H., Mielenz N., 2008a. Comparison of different traits to evaluate the growth of bulls. Czech J. Anim Sci. 53, 273–283
  • Přibylová J., Vostrý L., Veselá Z., Přibyl J., Bohmanová J., 2004. Breeding value for own growth of beef bulls in performancetest station. Anim. Sci. Pap. Rep. 22, 97–103
  • Schaeffer L.R., Schenkel F.S., Fries, L.A., 1997. Selection bias on animal model evaluation. J. Anim. Sci. 75, 2344–2352
  • Schenkel F.S., Miller S.P., Wilton J.W., 2004. Herd of origin effect on weight gain of station-tested beef bulls. Livest. Prod. Sci. 86, 93–103
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  • Vostrý L., Přibyl J., Schlote W., Veselá Z., Jakubec V., Majzlík I., Mach K., 2009. Estimation of animal × environment interaction in Czech beef cattle. Arch. Tierzucht 52, 15–22
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Typ dokumentu

Bibliografia

Identyfikatory

Identyfikator YADDA

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