PRODUCTIVE AND REPRODUCTIVE PERFORMANCE OF BAUSCAT DOE RABBITS AS AFFECTED BY INJECTION OF SOME ANTIMICROBIAL. | ||||
| Journal of Productivity and Development | ||||
| Article 22, Volume 12, Issue 2, July 2007, Page 673-688 PDF (241.27 K) | ||||
| Document Type: Original Article | ||||
| DOI: 10.21608/jpd.2007.45050 | ||||
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| Authors | ||||
| Salah Gad Alla1; Yousry El-Bolkiny* 2; Wael Attia2; Hanan Rabie1 | ||||
| 1Animal Production Research Institute, Agricultural Research Center, Giza, Egypt. | ||||
| 2Department of Zoology, Faculity of Science, Tanta University, Tanta, Egypt. | ||||
| Abstract | ||||
| The present study was included two trails. The first trail was started from sexual maturity at 6 months of age up to fulfillment two parities in order to evaluate the effects of treatment with either oxytetracycline or enrofloxacin on some physiological parameters, as well as , the reproductive performance of female Bouscat rabbits, In this respect, 36 does were randomly divided into three groups. The first group was used as a control group and was subcutaneously injected with saline solution (1 ml of 0.9 % NaCl). The second and three groups were subcutaneously injected with 50 mg oxytetracycline and 2.5 mg enrofloxacin/ kg body weight, respectively. The 2nd trail, lasted 8 weeks (from weaning at 5 weeks up to 13 weeks of age) in order to evaluate the effects of injection of some antimicrobials (tetracycline and enrofloxacin) on productive performance of growing Bouscat rabbits . In this respect, 60 weaning Bouscat rabbits (30 males and 30 females, 5 weeks old), as similarly in the 1st part. Results showed that the live body weight was increased with oxytetracycline and decreased with enrofloxacin as compared to the control. Treatment with either oxytetracycline or enrofloxacin increased the total number of RBCs after mating and decreased it during pregnancy, lactation period and at sacrifice. The WBCs of rabbits treated with oxytetracycline and enrofloxacin were significantly increased than the control group. The platelets count of rabbits treated with oxytetracycline was decreased after mating and during pregnancy and increased during lactation and at sacrifice. In oxytetracycline-treated does, there was a slight increase in hemoglobin concentration. The serum AST was significantly decreased in female rabbits treated with oxytetracycline one-week after the 1st injection, ALT was also insignificantly decreased by treatment with oxytetracycline and enrofloxacin as compared with the control group. After the 1st injection; oxytetracycline insignificantly decreased the creatinine and significantly decreased urea concentration, while enrofloxacin increased the serum levels of both creatinine and urea. At sacrifice, the progesterone level was significantly increased by treatment with oxytetracycline and enrofloxacin. Estradiol level significantly increased in both oxytetracycline and enrofloxacin-treated does after mating, during pregnancy and at sacrifice. Conception rate was significantly increased in doe rabbits treated with either oxytetracycline or enrofloxacin as compared to that of the control. The litter size at birth was slightly increased after treatment with either oxytetracycline or enrofloxacin, and was increased significantly at 21 and 28 days with both treatments. The litter weight at birth of treated rabbits with oxytetracycline was significantly improved followed by enrofloxacin as compared with control group. Oxytetracycline and enrofloxacin treatments significantly increased the daily milk yield at 1st, 2nd and 3rd week of lactation period of doe rabbits as compared to that of the control group. Both oxytetracycline and enrofloxacin injections significantly increased the viability percentage during the period from birth to 21 and 28 days. Both oxytetracycline and enrofloxacin treatments significantly increased the daily weight gain from 5-9, 9-13 and 5-13 weeks of age intervals of growing rabbits. The feed intake of growing rabbits was insignificantly increased during 5-9 and 5-13 weeks of age and insignificantly decreased during 9-13 weeks of age in treated groups. The daily feed conversion was insignificantly decreased during the period from 5-9 weeks of age of growing rabbits after either oxytetracycline or enrofloxacin treatment, however, it was significantly increased during the period from 9-13 and 5-13 weeks of age. | ||||
| Keywords | ||||
| tetracycline; Enrofloxacin; Productive and reproductive performance; blood components; Rabbits | ||||
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