Home Articles List Article Information
Journal of Animal and Poultry Production
Journal Archive
Volume Volume 16 (2025)
Volume Volume 15 (2024)
Volume Volume 14 (2023)
Volume Volume 13 (2022)
Volume Volume 12 (2021)
Volume Volume 11 (2020)
Volume Volume 10 (2019)
Volume Volume 9 (2018)
Volume Volume 8 (2017)
Volume Volume 7 (2016)
Volume Volume 6 (2015)
Volume Volume 5 (2014)
Volume Volume 4 (2013)
Volume Volume 3 (2012)
Volume Volume 2 (2011)
Volume Volume 1 (2010)
Volume Volume 34 (2009)
Volume Volume 33 (2008)
Volume Volume 32 (2007)
Volume Volume 31 (2006)
Volume Volume 30 (2005)
Volume Volume 29 (2004)
Volume Volume 28 (2003)
Volume Volume 27 (2002)
Volume Volume 26 (2001)
Volume Volume 25 (2000)
El Shafie,, O. (2001). GENETIC AND NON-GENETIC FACTORS AFFECTING MONTHLY AND CUMULATIVE MONTHLY MILK YIELD IN EGYPTIAN BUFFALOES. Journal of Animal and Poultry Production, 26(9), 5251-5260. doi: 10.21608/jappmu.2001.257961
O. M. B. El Shafie,. "GENETIC AND NON-GENETIC FACTORS AFFECTING MONTHLY AND CUMULATIVE MONTHLY MILK YIELD IN EGYPTIAN BUFFALOES". Journal of Animal and Poultry Production, 26, 9, 2001, 5251-5260. doi: 10.21608/jappmu.2001.257961
El Shafie,, O. (2001). 'GENETIC AND NON-GENETIC FACTORS AFFECTING MONTHLY AND CUMULATIVE MONTHLY MILK YIELD IN EGYPTIAN BUFFALOES', Journal of Animal and Poultry Production, 26(9), pp. 5251-5260. doi: 10.21608/jappmu.2001.257961
El Shafie,, O. GENETIC AND NON-GENETIC FACTORS AFFECTING MONTHLY AND CUMULATIVE MONTHLY MILK YIELD IN EGYPTIAN BUFFALOES. Journal of Animal and Poultry Production, 2001; 26(9): 5251-5260. doi: 10.21608/jappmu.2001.257961

GENETIC AND NON-GENETIC FACTORS AFFECTING MONTHLY AND CUMULATIVE MONTHLY MILK YIELD IN EGYPTIAN BUFFALOES

Article 3, Volume 26, Issue 9, September 2001, Page 5251-5260  XML PDF (887.85 K)
Document Type: Original Article
DOI: 10.21608/jappmu.2001.257961
View on SCiNiTO View on SCiNiTO
Author
O. M. B. El Shafie,
Animal production Research Institute, Dokki, Cairo, Egypt
Abstract
Total of 893 lactation records collected during the period (1983-1993) on a herd of 281 buffaloes and 21 sires raised at Mehallet Mousa, Station, Animal Production Research Institute, Ministry of Agriculture, Egypt, were used to study some genetic and non-genetic factors affecting monthly and cumulative monthly milk yield. Effects of sire, generation number, year of calving and parity  were highly significant for most of the traits studied except season of calving which was not significant. Heritability estimates of all traits were low and positive, they ranged between 0.06 to 0.19. Estimates of genetic correlation between each of monthly milk yield at the 3 rd and the 4 th month and cumulative monthly milk yield at 90 and 120 days and 300 days milk yield were positive and high about 1.02-1.09. Also, phenotypic and environmental correlation between the traits studied and 300 days milk yield were positive and either moderate or high, ranging between 0.35 and 0.99.
Keywords
Egyptian buffaloes; monthly milk yield; cumulative monthly milk yield; sire effect; non-genetic factors; heritability; genetic and phenotypic correlations
Statistics
Article View: 59
PDF Download: 212