REPRODUCTIVE PERFORMANCE OF EGYPTIAN BUFFALOES AS AFFECTED BY DIETARY YEAST CULTURE SUPPLEMENTATION WITH OR WITHOUT PREMIX DURING SUMMER AND WINTER.

Abdel-Khalek,, A. E.; El-Moghazy, M. M.; Osman, K. T.

doi:10.21608/jappmu.2006.235655

REPRODUCTIVE PERFORMANCE OF EGYPTIAN BUFFALOES AS AFFECTED BY DIETARY YEAST CULTURE SUPPLEMENTATION WITH OR WITHOUT PREMIX DURING SUMMER AND WINTER.

Document Type : Original Article

Authors

¹ Anim. Prod. Dept. Fac. Agric, Mansoura Uni., Mansoura, Egypt.

² Anim. Prod. Dept, Fac. Agric., Minuﬁya Uni., Shebin E

³ =Kom, Egypt.

⁴ Anim. Prod. Res. Institute, Agric. Research Center, Cairo, Egypt.

10.21608/jappmu.2006.235655

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

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