REPRODUCTIVE PERFORMANCE OF EGYPTIAN BUFFALOES AS AFFECTED BY DIETARY YEAST CULTURE SUPPLEMENTATION WITH OR WITHOUT PREMIX DURING SUMMER AND WINTER. | ||||
| Journal of Animal and Poultry Production | ||||
| Article 6, Volume 31, Issue 11, November 2006, Page 6971-6985 PDF (4.47 MB) | ||||
| Document Type: Original Article | ||||
| DOI: 10.21608/jappmu.2006.235655 | ||||
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| Authors | ||||
| A. E. Abdel-Khalek,1; M. M. El-Moghazy2, 3; K. T. Osman4 | ||||
| 1Anim. Prod. Dept. Fac. Agric, Mansoura Uni., Mansoura, Egypt. | ||||
| 2Anim. Prod. Dept, Fac. Agric., Minufiya Uni., Shebin E | ||||
| 3=Kom, Egypt. | ||||
| 4Anim. Prod. Res. Institute, Agric. Research Center, Cairo, Egypt. | ||||
| Abstract | ||||
| The current study was conducted to euraiuate the effects of dietary supplementation of YC (Gustor nature} With or without premrx on reproductive performance of buffalo cows during summer ano Winter seasons A total of 42 iactatmg Egyptian buffalo COWS weighng 500-650 Kg. aged 3-9 years and between 1.5 parites were used in the study for two seasons, winter and summer. Within each season. the experimental animais were dimded in:o three :éetery groups Group 1. fed basal diets Without supplementation and kept as control group Group < /p> 2, fed basal diets and supplemented wit‘r 20 g yeast culture (Custer naturefi'h.‘d Group 3, fed basal diets and supplemented With 20 g Gustor nature and 35 g premm‘ht‘d Total animals in each group were seven buffaloes All animals were fed the tested diets one-month prepartum and 6 months postpartum The obtained results indicated that postpartum 1st ovulation interval was longer (P<D CE in summer than Winter (33 7 vs 19 7 c). however. it was not affected significant“. by dietary treatment. Postpartum 1st oestrus interval was insignificantly longer :5 summer than winter {39? vs 321 d) and shorter in G2 and GB than in G1 (33 5 and 33 8 vs. 4‘; 9 d) Postpartum servtce Interval did not differ significantly as affected by season or dietary treatment. being 40 7 and 44.3 d in summer and wxrter and 45 9. 3‘3 3 and 4-1 3 d én G1, (32 ard <33, respectively Semce period length was 13 5 din summer and 25 6 c‘ in wfnter and 9 1, 313 5 and 23 4 d in Si, 62 and Ga. respectively, but the differences were not Significant Number cf SeCES per conception was 1.4 in both seasons, and 1 5 in both (32 and 5?? versus 1 a in 61 Days open was inSignificantly longer in wtnter (70 7 dl than in summer (54.4 d) and was not affected by dietary treatment. Buffaloes showed insignificantly shorter calving interval in summer than in winter (3726 v8 38-1 9 d). and was not affected by dietary treatment. In conclusion, feeding buffalo ccws or. diets supplemented With 20 gi’h/d yeast culture (Gustor nature) has resulted in marked improvement in most reproductive measurements of Egyptian buffaloes only during summer in term of reducing number of sen/ices/conception and shortening days open and calving interval | ||||
| Keywords | ||||
| Buffaloes; season; yeast culture. premix; reproduction | ||||
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