Effect of Selenomethionine and Levamisole Administration on Productive and Reproductive Efficiency and Blood Metabolites of the Egyptian Dairy Buffaloes | ||||
| Journal of Animal and Poultry Production | ||||
| Article 2, Volume 8, Issue 9, September 2017, Page 345-353 PDF (292.46 K) | ||||
| Document Type: Original Article | ||||
| DOI: 10.21608/jappmu.2017.46001 | ||||
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| Authors | ||||
A. F. A. El-Hawary  ; M. A. Abd El-Hady; A. A. Gabr; S. A. Ibrahim
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| Animal Production Research Institute, Agricultural Research Center, Dokki, Giza, Egypt. | ||||
| Abstract | ||||
| The present study aimed to investigate the effect of administration of selenomethionine, levamisole HCl and selenomethionine plus levamisole HCl to Egyptian buffalo-cows during the late gestation and early lactation period on productive traits (milk yield and composition), reproductive performance, blood metabolites and economical efficiency. Twenty-eight of Egyptian buffalo-cows (2-4 lactation seasons) in the late gestation (two months before calving) were divided into four similar groups (7 buffaloes/each). Buffaloes in the 1st group were untreated and served as a control, while those in the 2nd, 3rd and 4th were orally treated with 0.9 mg/kg DM twice weekly of selenomethionine (Se-Met), 0.5 mg/kg BW/week, subcutaneously of levamisole HCl (LEV), and 0.9 mg/kg DM orally twice weekly of selenomethionine plus 0.5 mg/kg BW/week, subcutaneously of levamisole HCl (Se-Met + LEV) respectively, during the late gestation and early lactation period (two months before and after calving). The obtained results revealed that the interval from calving to complete fetal membranes drop (FMD) and uterine involution (UI) were significantly (P<0.05) shorter with all treated groups than untreated grou p, being the shortest (P<0.05) and longest (P<0.05) values of interval from calving to FMD and UI were recorded for buffaloes treated with Se-Met+LEV(G4) and untreated buffaloes (G1), respectively. Buffaloes treated with Se-Met+LEV (G4) showed significantly (P<0.05) decrease in the interval from calving to ovarian structure, first estrus postpartum, service period and days open as compared to the control buffaloes (G1) or buffaloes treated with Se-Met (G2) or LEV (G3). The highest (P<0.05) and lowest (P<0.05) values of number of service /conception were observed with the control buffaloes and Se-Met+LEV (G4), respectively. The significantly (P<0.05) reduction of calving interval in all treated groups, especially with Se-Met+LEV. Also, based on cumulative values of conception rate, all buffaloes in Se-Met+LEV and Se-Met groups were conceived with 103 days postpartum, followed by 85.71% in LEV group, while non-buffaloes in control group. Buffaloes treated with Se-Met, LEV and Se-Met+LEV recorded significantly (P<0.05) increase in the actual milk yield as compared to the control buffaloes (9.41, 8.89 and 10.33 vs. 7 kg/day), respectively. Moreover, values of RBC’s, WBC’s , Hb, Ht, Gl, T4 and T3 were significantly (P<0.05) increased in all treated groups, while cortisol level was significantly (P<0.05) decreased as compared to the control group. In conclusion, the administration of selenomethionine, levamisole HCl and their combination to Egyptian buffalo-cows during the late gestation and early lactation period exerted a beneficial effect on reproductive performance, milk yield and composition, blood metabolites and economical efficiency. Therefore, it can be recommended to treatment of buffalo-cows with selenomethionine at a level of 0.9 mg/kg of DM/twice weekly, orally and injected subcutaneously with levamisole at a level of 0.5 mg/kg BW/week for improve of the reproductive efficiency, milk yield and economical efficiency. | ||||
| Keywords | ||||
| Buffalo-cows; selenomethionine; Levamisole; milk yield; Reproductive efficiency | ||||
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