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Journal of Nuclear Technology in Applied Science
Articles in Press
Current Issue
Journal Archive
Volume Volume 6 (2018)
Issue Issue 2
Issue Issue 1
M, E., Y, E., M., E. (2018). Effect of Heat Stress on Reproductive and Productive Traits in Baladi and Crossbred Goat Does under Subtropical Conditions. Journal of Nuclear Technology in Applied Science, 6(1), 31-45. doi: 10.21608/jntas.2018.10211
El-Sayed M; Eid Y; El-Zaher M.. "Effect of Heat Stress on Reproductive and Productive Traits in Baladi and Crossbred Goat Does under Subtropical Conditions". Journal of Nuclear Technology in Applied Science, 6, 1, 2018, 31-45. doi: 10.21608/jntas.2018.10211
M, E., Y, E., M., E. (2018). 'Effect of Heat Stress on Reproductive and Productive Traits in Baladi and Crossbred Goat Does under Subtropical Conditions', Journal of Nuclear Technology in Applied Science, 6(1), pp. 31-45. doi: 10.21608/jntas.2018.10211
M, E., Y, E., M., E. Effect of Heat Stress on Reproductive and Productive Traits in Baladi and Crossbred Goat Does under Subtropical Conditions. Journal of Nuclear Technology in Applied Science, 2018; 6(1): 31-45. doi: 10.21608/jntas.2018.10211

Effect of Heat Stress on Reproductive and Productive Traits in Baladi and Crossbred Goat Does under Subtropical Conditions

Article 2, Volume 6, Issue 1, January 2018, Page 31-45  XML PDF (734.53 K)
Document Type: Original Article
DOI: 10.21608/jntas.2018.10211
Authors
El-Sayed M1; Eid Y1; El-Zaher M.2
1Department of Biological Applications, Radioisotopes Applications Division, Nuclear Research Center, Atomic Energy Authority, Inshas, Cairo, Egypt, P.O.13759.
2Department of Biological Applications, Radioisotopes Applications Division, Nuclear Research Center, Atomic Energy Authority, Inshas, Cairo, Egypt, P.O.13759
Abstract
 
This experiment was conducted to study the effect of heat stress on some reproductive and productive performance in purebred and crossbred female goats under both of hot (summer season) and mild climatic (winter season) conditions. Forty mature female goats (20 Baladi and 20 crossbred (50% Zaraibi x 50% Baladi) used in this research. Results
- cundity were higher in experimental does during mild climate conditions
than hot climate conditions. Birth weight recorded higher values in
mild climate conditions in comparison with hot climate conditions. Concerning
to breed, reproductive traits were higher in crossbred goat does
compared with purebred goat does. Crossbred goat does showed higher
(P<0.01 or P<0.0001) in all productive traits than Baladi goat does. Cortisol
hormone concentration showed lower (P<0.0001) concentration under
mild climate conditions than hot climate conditions during different
stages of estrous cycle, pregnancy and postpartum periods. On the other
in crossbred goat does compared with purebred does during different
stages of estrous cycle, except diestrous period. Similar trend was found
during pregnancy and postpartum periods (P<0.01 or P<0.0001). It could
-
productive and productive traits of goats and in the same time, crossbred
was better than purebred goats.
Keywords
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