Author/Authors :
Shaaban, Mahmoud M. Biological Applications Department - Nuclear Research Center - Egyptian Atomic Energy Authority, Inshas, Cairo, Egypt , Abd El Tawab, Ahmed M. Dairy Sciences Department - National Research Centre, Egypt , Hadhoud, Fatma I. Dairy Sciences Department - National Research Centre, Egypt , Eid, Sherif Y. Biological Applications Department - Nuclear Research Center - Egyptian Atomic Energy Authority, Inshas, Cairo, Egypt , Mostafa, Mohamed M.M. Biological Applications Department - Nuclear Research Center - Egyptian Atomic Energy Authority, Inshas, Cairo, Egypt , El-Zaher, Hussein M. Biological Applications Department - Nuclear Research Center - Egyptian Atomic Energy Authority, Inshas, Cairo, Egypt , Khattab, Mostafa S.A. Dairy Sciences Department - National Research Centre, Egypt , El-ganainy, Shahira M.M. Animal production department - Faculty of agriculture - Minia university, Minia, Egypt
Abstract :
Enhancing the productive performance of ruminant by improving nutrients metabolism get much attention.
The aim of the current study was to investigate the effect of feeding olive cake either treated or untreated with fibrolytic
enzymes on the reproductive performance and some blood parameters in ewes. Forty-eight multiparous lactating Barki
ewes at second to third season of lactation (42±3 kg of live body weight) were equally and randomly allotted to four
dietary groups. Control group (G1) was fed on 60 % concentrate feed mixture (CFM), 40 % green maize, first group
(G2) as control with replacing 30% of CFM with olive cake, second group (G3) as control with replacing 30% of CFM
with olive cake silage and third groups (G4) as control with replacing 30% of CFM with olive cake silage treated with
fibrolytic enzyme. The results indicated no significant change were noted between control and other groups in blood
serum total protein, Albumin, Tri-glycerides, glucose, ALT and urea. G1 significantly increased (p<0.05) T3 as compared with G1, while G4 recorded the highest value for progesterone as compared with other treatments. Amongst the
four groups, G2, G3, G4 improved lambing rate, prolificacy rate, fertility%, female ratio, litter weight as compared with
G1, while, the highest stillbirth being in G1. It could be concluded that inclusion of olive cake silage either treated or
untreated with fibrolytic enzyme could improve the reproductive performance of ewes.
Keywords :
Olive cake silage , Ewes , Fibrolytic enzyme , Reproductive performance
