L-TYROSINE AND OVARIAN ACTIVITY IN EGYPTIAN BUFFALOES | ||||
| Assiut Veterinary Medical Journal | ||||
| Article 27, Volume 25.2, Issue 50, July 1991, Page 211-216 PDF (1.23 MB) | ||||
| Document Type: Research article | ||||
| DOI: 10.21608/avmj.1991.208519 | ||||
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| Authors | ||||
| G.A. EL-AMRAWI; A.D. ZAKARIA; M.T. NASR | ||||
| Abstract | ||||
| The effect of L-tyrosine on anestrus buffalo-cows were examined. A single oral dose of L-tyrosine (100 mg/Kg b.w.) were given for 48 buffaloes suffering from ovarian inactivity, beside another five animals, kept untreated (control). The results revealed that 42(87.5%) buffalo-cows came to heat within 6-9 days after treatment. Twenty-eight of them proved to be pregnant at day 42nd post service. The progesterone level in anestrus buffalo-cows pretreatment was lower than 0.2 ng/ml. Higher values for progesterone were estimated in the treated buffalces (1.7 ng/ml) than in the control ones (0.16 ng/ml) (P/0.01). Highly significant difference (P/0.01) was found in the progesterone level in the pregnant buffaloes than in the control at the same period (3.40 ng/ml and 0.16 ng/ mi respectively). The results indicated that a single oral dose (100 mg/kg b.w.) of L-tyrosine could induce the estrus in anestrus buffaloes. | ||||
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