Effects of Different Levels of Regolin with Different Flushing Diets on Reproductive Performance of Baluchi Ewes

Document Type : Full Research Paper

Authors

1 Faculty of Agriculture Sarayan, University of Birjand, Birjand, Iran

2 Department of Animal Science, Sari Agricultural Sciences and Natural Resources University, Sari, Mazandaran, Iran

Abstract

This experiment was conducted to investigate the effects of different levels of regolin with different flushing diets on reproductive performance of the Baluchi ewes in a completely randomized design with 5 treatments of 8 treatments.  The experimental treatments consisted of: 1- group (non-vegetable diet and flushing), group 2 (regolin level 1 + flushing diet containing 4% fish oil), group 3 (level 2 regolin + flashing diet containing 4% soybean oil) ), Group 4 (level 1 regolin + Flushing diet containing 4% soybean oil), group 5 (level 2 regolin + Flushing diet containing 4% fish oil).  The duration of the flushing ration was considered to be 25 days (10 days before rape and 15 days after rape). In the interval between 70 and 90 days after birth, once the euthanasia was observed, the ewes, the snoring were carried out. An ultrasonographic study was conducted to determine the number of graph follicles and to diagnose pregnancy 34 days after rash. After birth, reproductive parameters such as breeding rates (lambs born to ewes fed) and twin breeding (the number of double-breeding ewes to the ewes) and stillbirth (dead lambs born to the ewes of childbirth) Calculated). The results of oocyte rate, conception rate, mortality rate and lactation rate were significantly different (P<0.05). The highest oocyte rate (100%), Pregnancy rate (100%) and rate Lambsley (125%) and the lowest immobilization rate (%) were related to the group that had two levels of melatonin and Flushing diet containing 4% soy oil and had a significant difference with the control group (P<0.05). There was no significant difference between furrowing distance and estrus between treatments. The results of mean number of graph follicles in ovaries in the time of oestrus and the number of corpus luteum 10 days after rabies showed that the use of melatonin outside the reproductive season increased the number of graph follicles during estrus, and with the group Control (no melatonin) had a significant difference (P<0.05).

Keywords

References

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Veterinary Research & Biological Products
Volume 33, Issue 3
September 2020
Pages 59-68

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History

  • Receive Date: 09 June 2019
  • Revise Date: 26 June 2019
  • Accept Date: 01 July 2019

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