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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
Abstract

The objective of the present study was to quantify the impact of the systematic environmental effects of both birth and rearing type on pre-weaning lamb live weight, and to evaluate the repercussions of inaccurate recording of birth and rearing type on subsequent genetic evaluations. A total of...

Author(s)
McHugh, N.; Pabiou, T.; McDermott, K.; Wall, E.; Berry, D. P.
Publisher
American Society of Animal Science, Savoy, USA
Citation
Translational Animal Science, 2017, 1, 2, pp 137-145
Abstract

This study was done inside an assignment that intended to break down options and strategies for the progression of a rabbit line by using two pure breeds (V-line (V), and Gabali (G)). Records of 448 packs delivered by 45 does and 16 bucks were utilized to estimate covariance, Heritability (h2),...

Author(s)
Rabie, T. S. K.; Nowier, A. M.; Abou-Zeid, A. E.; Khattab, A. S.
Publisher
Egyptian Poultry Science Association, Alexandria, Egypt
Citation
Egyptian Poultry Science Journal, 2019, 39, 2, pp 519-536
AbstractFull Text

This study was carried out to estimate the genetic direct and maternal genetic trends and to study the inbreeding effect on the standardized weight at 120 (W120) and 210 (W210) days of age in polled Nellore cattle from Embrapa Cerrado herd. The records were collected between 1990 and 2010. Both...

Author(s)
Lopes, F. B.; Magnabosco, C. U.; Souza, F. M. de; Assis, A. S. de; Brunes, L. C.
Publisher
Instituto de Zootecnia, Facultad de Veterinaria, Córdoba, Spain
Citation
Archivos de Zootecnia, 2016, 65, 250, pp 177-182
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
AbstractFull Text

A total 1905 first farrowing records of Landrace × Desi individual pigs were analyzed to study effect of various non genetic factors on different pre-weaning individual body weights and to estimate of breeding values of boars for weaning weight. The average least squares means for BW, 15dW, 28dW,...

Author(s)
Mondal, S. K.; Amit Kumar
Publisher
Agricultural Research Communication Centre, Karnal, India
Citation
Indian Journal of Animal Research, 2015, 49, 2, pp 273-275
AbstractFull Text

Reaction Norm (RN) is the study of genotype-environment interaction (G × E) that complies with alternative ways of genotypes within different environments. This study was carried out to verify G × E by a reaction norm model of weights at 120 (W120) and 210 (W210) days of age in Nellore cattle...

Author(s)
Ferreira, J. L.; Lopes, F. B.; Lira, T. S. de; Garcia, J. A. S.; Lôbo, R. B.; Sainz, R. D.
Publisher
Universidade Estadual de Londrina, Londrina, Brazil
Citation
Semina: Ciências Agrárias (Londrina), 2015, 36, 4, pp 2787-2797
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
Abstract

Beef producers have concerns that selection for carcase traits may affect maternal productivity and a project is being conducted to assess maternal effects up to calf weaning. This paper reports on the carcases of steer progeny. Steer calves from Angus heifers which had been selected for divergent...

Author(s)
Deland, M. P. B.; Copping, K.; Graham, J. F.; Pitchford, W. S.
Publisher
Association for the Advancement of Animal Breeding and Genetics, Armidale, Australia
Citation
Proceedings of the 19th Conference of the Association for the Advancement of Animal Breeding and Genetics (AAABG), University of Western Australia, Perth, W.A., Australia, 19-21 July, 2011. Breeding objectives: a new paradigm, 2011, pp 434-437
Abstract

Three different models including or not the direct and maternal non-additive effects and the fixed effects of contemporary group, parity order, direct and maternal heterosis and the direct and maternal additive genetic random effects were compared for predicting breeding values of pre-weaning daily ...

Author(s)
Bocchi, A. L.; Oliveira, H. N. de; Ferraz, J. B. S.; Eler, J. P.
Publisher
Sociedade Brasileira de Zootecnia, Viçosa, Brazil
Citation
Revista Brasileira de Zootecnia, 2008, 37, 7, pp 1207-1215

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