Eissa,, M., Mahrem, J., Osman, M. (2003). REPRODUCTIVE PERFORMANCE OF LOCAL S~EEP AND GOATS BREEDS AND THEIR CROSSES WlTH IMPORTED TEMPERATE BREEDS. Journal of Animal and Poultry Production, 28(3), 1793-1801. doi: 10.21608/jappmu.2003.242732
M. M. Eissa,; j. G. Mahrem; Mona A. Osman. "REPRODUCTIVE PERFORMANCE OF LOCAL S~EEP AND GOATS BREEDS AND THEIR CROSSES WlTH IMPORTED TEMPERATE BREEDS". Journal of Animal and Poultry Production, 28, 3, 2003, 1793-1801. doi: 10.21608/jappmu.2003.242732
Eissa,, M., Mahrem, J., Osman, M. (2003). 'REPRODUCTIVE PERFORMANCE OF LOCAL S~EEP AND GOATS BREEDS AND THEIR CROSSES WlTH IMPORTED TEMPERATE BREEDS', Journal of Animal and Poultry Production, 28(3), pp. 1793-1801. doi: 10.21608/jappmu.2003.242732
Eissa,, M., Mahrem, J., Osman, M. REPRODUCTIVE PERFORMANCE OF LOCAL S~EEP AND GOATS BREEDS AND THEIR CROSSES WlTH IMPORTED TEMPERATE BREEDS. Journal of Animal and Poultry Production, 2003; 28(3): 1793-1801. doi: 10.21608/jappmu.2003.242732
REPRODUCTIVE PERFORMANCE OF LOCAL S~EEP AND GOATS BREEDS AND THEIR CROSSES WlTH IMPORTED TEMPERATE BREEDS
Animal Production Research Institute, AgricultUre Ministry, Dokkl, Cairo
Abstract
Reproductive per10rmance of sheep breeds; desert BaOQ (B), AraSsi (A) and F, (112A.1128) in 1" hand and goats breeds of desert Barld (B), Damascus (D), F, (1/20.1I2B}, Fl (3I40.1/4B), F~ (7180.1I8B) and F4 (151160.11168) In f'_' hand were studied under semi-and condition of the c;oastal zone of the weslem desert of Egypt during year 2000.
Genotype of sbeep failed to show any significant effect on nU"J r of service per conception (NSPC). gestation length (GL), oestrous cycle (OCL) and oestrous duration(OO) .. The overall mean of gestation length of sheep was 147.93±O.27 days. Barkl ewes needed !he least number of service per conception and had the least oestrous duration than other genotypes studied. The oestrous cycle of f\wassi ewes was shorter than Ihat of Bar1d ewes. Age of dam had highly significant effect on NSPC and non-significant effect on GL, OCL and 00. The GL and 00 decreased with increase of age until more than 4 years. Weight of dam had highly significant effect on GL. Occurrence of oestrous was 1000Al in ~ Ax ~B eweS but it was 95.150/. and 90% In B and A ewes, respectively.
Genotype of goat had significant effect only on number of seMce per conception. The overall mean or gestation length was 150.25:1:0.32 ~ys. Oestrous duration was sigolfK;anUy affected by genotype 01 goat. Weight of dam only had signifICant effect on 00. while age of dam had signfficant effect on GL and 00. The onset of oastrous eceurred more frequentty at moming for Bother tha 0 and theIr crosses.
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