REPRODUCTIVE PERFORMANCE, PLASMA PROGESTERONE PROFILE AND DIGESTIBILITY IN EWES FED RATIONS CONTAINING DIFFERENT NI- TROGEN SOURCES
KHALIL, F., ABD-ELAZIZ, A., GOMAA, I., ABDEL-REHIM, S. (2000). REPRODUCTIVE PERFORMANCE, PLASMA PROGESTERONE PROFILE AND DIGESTIBILITY IN EWES FED RATIONS CONTAINING DIFFERENT NI- TROGEN SOURCES. EKB Journal Management System, 78(1), 237-350. doi: 10.21608/ejar.2000.321695
FAROK A. KHALIL; AHMED M. S. ABD-ELAZIZ; ISMAIL A. GOMAA; SAHAR A. ABDEL-REHIM. "REPRODUCTIVE PERFORMANCE, PLASMA PROGESTERONE PROFILE AND DIGESTIBILITY IN EWES FED RATIONS CONTAINING DIFFERENT NI- TROGEN SOURCES". EKB Journal Management System, 78, 1, 2000, 237-350. doi: 10.21608/ejar.2000.321695
KHALIL, F., ABD-ELAZIZ, A., GOMAA, I., ABDEL-REHIM, S. (2000). 'REPRODUCTIVE PERFORMANCE, PLASMA PROGESTERONE PROFILE AND DIGESTIBILITY IN EWES FED RATIONS CONTAINING DIFFERENT NI- TROGEN SOURCES', EKB Journal Management System, 78(1), pp. 237-350. doi: 10.21608/ejar.2000.321695
KHALIL, F., ABD-ELAZIZ, A., GOMAA, I., ABDEL-REHIM, S. REPRODUCTIVE PERFORMANCE, PLASMA PROGESTERONE PROFILE AND DIGESTIBILITY IN EWES FED RATIONS CONTAINING DIFFERENT NI- TROGEN SOURCES. EKB Journal Management System, 2000; 78(1): 237-350. doi: 10.21608/ejar.2000.321695

REPRODUCTIVE PERFORMANCE, PLASMA PROGESTERONE PROFILE AND DIGESTIBILITY IN EWES FED RATIONS CONTAINING DIFFERENT NI- TROGEN SOURCES

Egyptian Journal of Agricultural Research
Article 25, Volume 78, Issue 1, March 2000, Page 237-350  XML PDF (3.6 MB)
Document Type: Original Article
DOI: 10.21608/ejar.2000.321695
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Authors
FAROK A. KHALIL1; AHMED M. S. ABD-ELAZIZ1; ISMAIL A. GOMAA2; SAHAR A. ABDEL-REHIM2
1Faculty of Agriculture, Ain Shams University, Cairo, Egypt
2Animal Production Research Institute, Agricultural Research Centre, Ministry of Agriculture, Dokki, Giza, Egypt
Abstract
T welve Suffolk crossbred ewes were used in this study. Animals randomly assigned to three equal groups and received three different ra­tionss: control ration (C group), 40% ammoniated corn stover (ACSGROUP) and 10% broilers litter ration (BL group).Experimental peri­od included two months preception, gestation and first five weeks of suckling period.Estrous cycle length was not influenced by the dietary treatments, with overall mean 16 days.Mean gestation lenghth was long­er (P<0.05) in BL group than C group (152.25 versus 148 days). Litter weight at birth was not influenced by treatment and not correlated with the length of gestation. Conception rate was not influenced by treat­ment, while, lambing rates decreased. Mean peak concentration of plas­ma progesterone increased (P<0.01) in response to dietary treatments in cycliing ewes but not in pregnant ewes.Twin pregnancies were higher in mean plasma progesterone level than single pregnancies(11.76 versus 8.39 mg/ml). Lambs growths during the first five weeks of suckling peri­od decreased (P<0.05) in BL group. The ACS ration had better CP, EE and NFE digestibility, TDN, DCP and the highest daily intake of TDN. It could be concluded that feeding rations contaning 40% ACS or 10% BL generally maintains the productive and reproductive perfor­mance of cycling, pregnant and lactating ewe.
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