Genetic and environmental influences on birth weight, weaning weight and average daily gain of holstein calves in Syrian coast conditions
Other Title(s)
العوامل البيئية و الوراثية المؤثرة على وزن الميلاد، وزن الفطام و متوسط الزيادة اليومية في عجول الهولشتاين تحت ظروف الساحل السوري
Joint Authors
al-Masri, Ubaydah
al-Dakkak, Majid
Abu Bakr, Sami
Ibrahim, Muhammad Abd al-Aziz Muhammad
Source
Egyptian Journal of Animal Production
Issue
Vol. 57, Issue 3 (30 Sep. 2020), pp.127-132, 6 p.
Publisher
Egyptian Society of Animal Production
Publication Date
2020-09-30
Country of Publication
Egypt
No. of Pages
6
Main Subjects
Topics
Abstract EN
This study was carried out at Dairy Station which belonging to the General Organization for Cattle in Latakia province, Syria, to investigate the effects of genetic and some environmental factors on birth weight (BW), weaning weight (WW) and average daily gain (ADG) using data of 4055 Holstein calves during the years from 1990 to 2015.
Analysis of variance showed that year of calving had significant effect (P< 0.05) only on average daily gain, and the effect of season of calving had significant effect on birth weight and average daily gain.
Whereas, parity, gender and the interaction between parity and gender influenced significantly (P< 0.
01) all the studied traits.
The overall means for BW, WW and ADG were 34.6±0.12 kg, 96.2±0.07 kg and 684±0.002 g/day, respectively.
Heritability estimates for these traits were 0.06±0.03, 0.03±0.01 and 0.03±0.02, respectively.
It is concluded that the BW, WW and ADG were adequate under Syrian Coast Conditions.
Low heritability estimates indicated that the genetic effect was low.
American Psychological Association (APA)
al-Masri, Ubaydah& al-Dakkak, Majid& Abu Bakr, Sami& Ibrahim, Muhammad Abd al-Aziz Muhammad. 2020. Genetic and environmental influences on birth weight, weaning weight and average daily gain of holstein calves in Syrian coast conditions. Egyptian Journal of Animal Production،Vol. 57, no. 3, pp.127-132.
https://search.emarefa.net/detail/BIM-985905
Modern Language Association (MLA)
al-Masri, Ubaydah…[et al.]. Genetic and environmental influences on birth weight, weaning weight and average daily gain of holstein calves in Syrian coast conditions. Egyptian Journal of Animal Production Vol. 57, no. 3 (Sep. 2020), pp.127-132.
https://search.emarefa.net/detail/BIM-985905
American Medical Association (AMA)
al-Masri, Ubaydah& al-Dakkak, Majid& Abu Bakr, Sami& Ibrahim, Muhammad Abd al-Aziz Muhammad. Genetic and environmental influences on birth weight, weaning weight and average daily gain of holstein calves in Syrian coast conditions. Egyptian Journal of Animal Production. 2020. Vol. 57, no. 3, pp.127-132.
https://search.emarefa.net/detail/BIM-985905
Data Type
Journal Articles
Language
English
Notes
Includes bibliographical references : p. 131-132
Record ID
BIM-985905