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Abstract

This study estimated the genetic parameters for preweaning average daily gain (ADG) and the number of days to gain 160 kg (D160) in Nelore cattle. 39 409 calf records from 855 sires, 19 627 dams, and 1930 contemporary groups were used. Heritability estimates (restricted maximum likelihood -...

Author(s)
Peña, C. D. O.; Carvalheiro, R.; Queiroz, S. A. de; Fries, L. A.
Publisher
Institut National de la Recherche Agronomique (INRA), Montpellier, France
Citation
Proceedings of the 7th World Congress on Genetics Applied to Livestock Production, Montpellier, France, August, 2002. Session 2, 2002, pp 0-4
Abstract

The aim of this study was to evaluate selection criteria in Gyr [Gir] cattle based on the traits such as average daily gain from birth to weaning (ADG) and number of days to gain 160 kg from birth to weaning (D160). Data from the Brazilian Association of Zebu Breeders of 16 592 calves, 507 sires,...

Author(s)
Muniz, C. A. S. D.; Queiroz, S. A.; Carvalheiro, R.; Fries, L. A.
Publisher
Institut National de la Recherche Agronomique (INRA), Montpellier, France
Citation
Proceedings of the 7th World Congress on Genetics Applied to Livestock Production, Montpellier, France, August, 2002. Session 2, 2002, pp 0-4
AbstractFull Text

This study was carried out to investigate variance components, direct, maternal genetic parameters, estimated breeding values and factors affecting pre-weaning growth criteria of Romney sheep. Data were collected over the period from 2006 to 2012 with records of 4989 lambs descended from 76 rams...

Author(s)
Faid-Allah, E.; Ghoneim, E.; Ibrahim, A. H. M.
Publisher
Pusat Penelitian dan Pengembangan Peternakan, Bogor, Indonesia
Citation
Jurnal Ilmu Ternak dan Veteriner, 2016, 21, 2, pp 73-82
Abstract

The objective of this study was to estimate genetic parameters associated with lamb survival for preweaning mortality and mortality at birth. Records used (n = 62,113; 2000 to 2015) for this study were a subset of much larger dataset (n = 270,400) from 1950 to 2015 as a preliminary investigation of ...

Author(s)
Holland, P. W.; Hanna, L. L. H.; Vonnahme, K. A.; Reynolds, L. P.; Taylor, J. B.; Riley, D. G.
Publisher
American Society of Animal Science, Savoy, USA
Citation
Translational Animal Science, 2017, 1, Suppl. 1, pp 162-164
AbstractFull Text

Aim: The aim of this study was to estimate the heritability, genetic and phenotypic correlations, and the genetic trends for pre-weaning growth traits including the birth weight (BWT), weaning weight (WWT), pre-weaning daily gain (PWDG), and weaning age (WA) in Awassi lambs. Materials and Methods:...

Author(s)
Jawasreh, K.; Ismail, Z. B.; Iya, F.; Castañeda-Bustos, V. J.; Valencia-Posadas, M.
Publisher
Veterinary World, Rajkot, India
Citation
Veterinary World, 2018, 11, 2, pp 254-258

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