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EFFECT OF USING REDUCED RUMINAL DEGRADABILITY RATION ON MILK PRODUCTION, SOME BLOOD PARAMETERS AND LAMB GROWTH IN AWASSI EWES | ||
| The Iraqi Journal of Agricultural Science | ||
| Article 1, Volume 45, Issue 3, 2014, Pages 313-321 | ||
| Authors | ||
| M. M. Qassem; M. N. Abdullah | ||
| Abstract | ||
| This study was conducted in Al-Rashidiya Animal Breeding Station, using 28 ewes (2-6 yrs old) with an average body weight of 57.1 Kg with their single new born lambs. Divided into 4 equall groups just after the second week of birth were used in the experiment lasted 56 days, over 4 intervals (14 days each) to investigate the effect of MP:ME in the ration (gm MP: ME MJ). Four rations, the first consist mainly of barley, yellow corn, soybean meal and wheat bran (control R1). While the second ration R2 (barley and wheat bran were treated), third ration R3 and forth R4 also soybean meal, were treated with acidic formaldehyde (9 L/ton), the ration were iso calories and iso nitrogen except that crude protein % in R4 was elevated by additional urea, but differ in MP: ME (6.61, 8.87, 9.98 & 9.98) respectively. Results showed that feeding ewes on rations, R2, R3 and elevating RDP with additional urea R4 significantly (p< 0.05) increased total milk production (19.2, 35.7 and 40.3%) compared with R1 respectively. Treating barley and wheat bran ( R2 )significantly (p< 0.05 ) increased milk fat content (7.3%), but milk protein and lactose percentage was not affected by treatments. A decrease in milk production was found as the nursing season proceeded, except R4 ration show non-significant difference in daily milk production between the 4 intervals. Treatment R3 and R4 increased ( p < 0.05 ) serum total protein and albumin compared with control R1, treated rations (R2, R3 and R4) significantly increased (p< 0.05) serum glucose and triglycerides concentrations but decreased (p< 0.05) urea concentration compared with control R1. Treatment R4 (p < 0.05) increased lambs body weight compared with R1 and R2 group. | ||
| Keywords | ||
| Degradability; ration; Milk production | ||
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