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Sire variance component and non-genetic factors affecting weaning weight and post-weaning growth traits in bouscat and baladi red rabbits
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Abstract: An experiment was carried out to study the effects of sire and some non-genetic factors and to determine the genetic variation in post-weaning traits [ body weight (BWT), daily gain in weight (DGW) and livability (LIV) at different ages up to 16 weeks in Bouscat (B) and Baladi Red (BR).
Means of BWT and DGW traits at different age stages as well as post- weaning livability up to 12, 14 and 16 weeks of age in B rabbits were higher than in BR ones. Percentages of variation for BWT and DGW traits decreased in general with advance of age. Sire and month of birth affected significantly most traits studied in both breeds. Estimates of sire variance component and heritability obtained by either Henderson,s 111 or Restricted Maximum Likelihood ( REML) method were moderate for BWT and DGW but were lower in LIV traits in both breeds. Estimates of variation due to sire effect for traits studied, in general, were higher in B rabbits than in BR ones. Genetic correlations between BWT traits, LIV traits were positive in most cases and tended to decrease as the time interval between any two ages get larger.
Keywords: rabbits, post-weaning growth, livability, sire, variance component, heritability, genetic correlation
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| Publication year |
2001
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| Availability location |
معهد بحوث الانتاج الحيوانى- شارع نادى الصيد - الدقى - الجيزة
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| Availability number |
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| Organization Name |
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| Country |
Egypt
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| City |
العريش
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| serial title |
Second International Conferance On Anim. Production & Health in Semi Arid Areas.
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| Department |
Rabbit, Turkey and Water Fowl Research Department
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| Author(s) from ARC |
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| External authors (outside ARC) |
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| Agris Categories |
Animal husbandry
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AGROVOC
TERMS |
Fathers.
Genetics.
Heritability.
Rabbits.
Weaning.
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| Publication Type |
Conference/Workshop
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