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El-Attrouny, M., Habashy, W. (2025). CORRELATED RESPONSE ON LITTER TRAITS AND MILK YIELD IN NEW ZELAND WHITE RABBITS SELECTED FOR LITTER SIZE AT BIRTH. Egyptian Poultry Science Journal, (), -. doi: 10.21608/epsj.2025.37811.1106
mahmoud mostafa El-Attrouny; Walid shabaan Habashy. "CORRELATED RESPONSE ON LITTER TRAITS AND MILK YIELD IN NEW ZELAND WHITE RABBITS SELECTED FOR LITTER SIZE AT BIRTH". Egyptian Poultry Science Journal, , , 2025, -. doi: 10.21608/epsj.2025.37811.1106
El-Attrouny, M., Habashy, W. (2025). 'CORRELATED RESPONSE ON LITTER TRAITS AND MILK YIELD IN NEW ZELAND WHITE RABBITS SELECTED FOR LITTER SIZE AT BIRTH', Egyptian Poultry Science Journal, (), pp. -. doi: 10.21608/epsj.2025.37811.1106
El-Attrouny, M., Habashy, W. CORRELATED RESPONSE ON LITTER TRAITS AND MILK YIELD IN NEW ZELAND WHITE RABBITS SELECTED FOR LITTER SIZE AT BIRTH. Egyptian Poultry Science Journal, 2025; (): -. doi: 10.21608/epsj.2025.37811.1106

CORRELATED RESPONSE ON LITTER TRAITS AND MILK YIELD IN NEW ZELAND WHITE RABBITS SELECTED FOR LITTER SIZE AT BIRTH

Articles in Press, Accepted Manuscript, Available Online from 19 May 2025  XML
Document Type: Original Article
DOI: 10.21608/epsj.2025.37811.1106
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Authors
mahmoud mostafa El-Attrouny email orcid 1; Walid shabaan Habashyorcid 2
12Department of Animal Production, Faculty of Agriculture at Moshtohor, Benha University, Egypt
2Dept. of Anim. and Poult. Prod, Fac. of Agric., Damanhour Uni., Egypt
Abstract
The objective of this study was to evaluate the effect of selection for increase litter size at birth on litter traits and milk yield in New Zealand White (NZW) rabbits. A total of 2231 litters produced from 360 does were used to evaluate litter size at birth (LSB) and weaning (LSW), litter weight at birth (LWB), litter weight at 21 d (LW21), litter weight at weaning (LWW) and mortality percentage (MOR%), milk yield at lactation intervals of 0–7 d (MY07), 7-14 d (MY14), 14-21 d (MY21), 21-28 d (MY28) and for the total 0-28 d (TMY) and milk conversion ratio as g of litter gain per g of milk suckled during 21 d of lactation (MCR021). Multi-trait animal model was used to data analysis using VCE6 programe. Estimates of heritability for litter traits were low and ranging from 0.05 for LSB to 0.14 for LWB. Also, estimates for milk yield traits were low and ranged from 0.08 for MY7 to 0.22 for MY21. The contrast among these generations were significant (P
Keywords
Correlated response; litter traits; milk yield; heritability; Selection
Main Subjects
Rabbit
Statistics
Article View: 38