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    Authors

    • Ammar R. Mansor
    • Mudhaffer N. Al-Saigh
    • Sadi Sh. Khalaf
,
10.32649/ajas.2015.120015
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Abstract

His field experiment was carried out on a flock of 169 local ewes at Al-Jazeera – Al-Budyb. Located in the northern of Al- Ramadi. During the period from 1/1/2013 until 11/11/2013. The aim of this study was determine the effect of melatonin implants on reproductive performance of local Iraqi ewes. The ewes ranging from 2 to 5 years of age. The ewes were randomly divided into two groups. Which are: melatonin group (92 ewes) and control group (77 ewes). Results in the present study shown the lambing rate was greater (P<0.05) in the melatonin group (69.6%) than the control group (57.1%). as well as treatment of melatonin lowered (P<0.01) percentage of Barren ewes. 30.4% in the melatonin group and 42.9% in the control group. No treatment effects were observed for the Twining rate (12.5% melatonin group, 18.2% control group) . Prolificacy (1.125±0.04 melatonin group, 1.182±0.06 control group) and Fecundity (0.78±0.06 melatonin group, 0.68±0.07 control group). The results shown that ewes treated with melatonin implants were producing a 0.10 extra lambs per ewe treated (extra 10 lambs on 100 ewes lambed. compared with control group) and 12.8% Gain. It can be concluded that melatonin could be a useful tool to improve reproductive performance of the sheep.

Keywords

  • Melatonin
  • implant
  • Reproductive
  • Local Iraqi ewes
  • Twining rate
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ANBAR JOURNAL OF AGRICULTURAL SCIENCES
Volume 13, Issue 1
June 2015
Page 174-183
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APA

R. Mansor, A., N. Al-Saigh, M., & Sh. Khalaf, S. (2015). . ANBAR JOURNAL OF AGRICULTURAL SCIENCES, 13(1), 174-183. doi: 10.32649/ajas.2015.120015

MLA

Ammar R. Mansor; Mudhaffer N. Al-Saigh; Sadi Sh. Khalaf. "". ANBAR JOURNAL OF AGRICULTURAL SCIENCES, 13, 1, 2015, 174-183. doi: 10.32649/ajas.2015.120015

HARVARD

R. Mansor, A., N. Al-Saigh, M., Sh. Khalaf, S. (2015). '', ANBAR JOURNAL OF AGRICULTURAL SCIENCES, 13(1), pp. 174-183. doi: 10.32649/ajas.2015.120015

VANCOUVER

R. Mansor, A., N. Al-Saigh, M., Sh. Khalaf, S. . ANBAR JOURNAL OF AGRICULTURAL SCIENCES, 2015; 13(1): 174-183. doi: 10.32649/ajas.2015.120015

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