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Reproductive Performance in Response to Different Energy and Protein Feeding Regimens of Nubian Goats in the Sudan


Y H Elmansoury
M E Husna
S E Makkawi
E A Babeker
A E Aisha
E B Amna

Abstract

This study was conducted to investigate the effects of feeding different levels of energy and protein on the reproductive performance of Sudanese Nubian goats. Forty- four female Nubian goats (3-5 years old) were divided into four equal groups and fed on different levels of energy (2.22 -3.12 Mcal /kg DM) and protein (7.3% - 13.1%dry matter). The animals were synchronized for estrous with progesterone - impregnated intravaginal sponges + PMSG (400 - 500 IU). About 80-90% of treated goats showed estrus response within 48h. The conception rate (72%) and kidding rate(63% and 54%) are higher in goats fed high level of protein ( group HEHP and LEHP) these goats showed significant (P<0.05) shorter time for resumption of ovarian activity after kidding. kid survival is 100% in group HEHP whereas, high mortality rates occurred in groups fed low levels of energy ( LELP and LEHP).

Keywords: Nutrient Supplementation, Energy, Protein, Reproductive Performance, Nubian goats


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eISSN: 0378-9721