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EFFECT OF DILUENT SUPPLEMENTATION WITH LIQUORICE EXTRACT ON SEMEN QUALITY OFROOSTERS | ||
| The Iraqi Journal of Agricultural Science | ||
| Article 1, Volume 36, Issue 4, 2005, Pages 159-168 | ||
| Abstract | ||
| ABSTRACTThis study was undertaken as an attempt to enhance the resistance of roosters semen to peroxidative detriments by supplementing Beltsvillc Poultry Semen Extender (BPSE) diluent of roosters semen with liquorice extract (LE). Six treatment groups each of 7 White Leghorn cockerels, 22 weeks of age were used. Semen samples were collected from all roosters once a week throughout the experimental period (22 - 32 weeks of age). Treatment (1) was fresh semen and served as the control, T2 represented the semen diluted with BPSE diluent alone, while T3, T4, T5 and T6 were semen samples diluted with BPSE diluent and supplemented with 1,3,6 or 9 mg LE /100 ml of diluent, respectively. Effects of diluent supplementation with LE on mass activity, individual motility and percentages of dead spermatozoa, abnormal spermatozoa and acrosomal abnormalities of roosters semen stored for different storage periods (0,24,48 or 72 hours) at refrigerator temperature (4 - 6 6 C) were studied.Results revealed that inclusion of LE into BPSE diluent resulted in significant (p < 0.05) improvement in spermatozoan motility, viability and morphology of spermatozoa and acrosomes of roosters semen stored for 24, 48 or 72 h at 4 - 6 0 C compared with control group fTl). However, there were no significant differences between T2 and T3 in regard to traits mentioned hereinbefore. Furthermore, TS and T6 surpasses other treatments of LE (T3 or T4) with relation to these semen characteristics.In conclusion, involvement of LE in roosters semen diluent ameliorated semen quality of roosters semen samples that stored at 4 - 6 4 C unto 72 h. However, the levels of 6 and 9 mg LE /100 ml of diluent recorded the best results regarding all semen characteristics included in this study in comparison with 1 and 3mgLE/100mlof diluent. | ||
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