Effect of different dietary energy levels on the reproductive performance of Kivircik sheep under a semi-intensive system in the South-Marmara region of Turkey

M. Koyuncu; O. Canbolat

doi:10.22358/jafs/66436/2009

Current issue Online first Archive About the Journal Editorial Office Editorial Board Copy right and self-archiving policy Peer review process Instructions for Reviewers Printed version subscription Abstracting and indexing Contact Instructions for Authors Policies General information Open Access, Licensing terms, Commercial use and Copyright terms policies Self-archiving policy and Archive policies Article Correction and Withdrawal policy Manuscript Submission policy Authorship policy Conflict of Interest policy Language considerations policy Plagiarism and Duplicate publications policy Ethics policy Review process policy Acceptance of manuscripts policy Online First Articles and Special Issues policies Generative artificial intelligence (AI) policy Advertising policy Article publication charges

Current issue

Online first

Archive

About the Journal Editorial Office Editorial Board Copy right and self-archiving policy Peer review process Instructions for Reviewers Printed version subscription Abstracting and indexing Contact

Instructions for Authors

Policies General information Open Access, Licensing terms, Commercial use and Copyright terms policies Self-archiving policy and Archive policies Article Correction and Withdrawal policy Manuscript Submission policy Authorship policy Conflict of Interest policy Language considerations policy Plagiarism and Duplicate publications policy Ethics policy Review process policy Acceptance of manuscripts policy Online First Articles and Special Issues policies Generative artificial intelligence (AI) policy Advertising policy

Article publication charges

4/2009 vol. 18

Stats

CC-BY 4.0

Get citation

ORIGINAL PAPER

Effect of different dietary energy levels on the reproductive performance of Kivircik sheep under a semi-intensive system in the South-Marmara region of Turkey

M. Koyuncu ¹

O. Canbolat ¹

More details

Hide details

University of Uludag, Faculty of Agriculture, Department of Animal Science, 16059 Bursa, Turkey

Publication date: 2009-11-06

Corresponding author

M. Koyuncu

University of Uludag, Faculty of Agriculture, Department of Animal Science, 16059 Bursa, Turkey

J. Anim. Feed Sci. 2009;18(4):620-627

DOI: https://doi.org/10.22358/jafs/66436/2009

Article (PDF)

Citations (17)

KEYWORDS

sheep

energy

reproduction

ABSTRACT

The objective of the study was to determine the effects of four dietary energy levels (L₁ - 10.3, L₂ - 11.0, L₃ - 11.6 and L₄ - 12.2 MJ ME per kg DM) on oestrus synchronization and fertility in Kivircik ewes. Eighty Kivircik ewes were randomly allocated in equal numbers to the four dietary energy treatments. The groups were treated with intra vaginal sponges containing 40 mg FGA (fluorogestone acetate) for a period of 14 days and 500 IU pregnant mare serum gonadotropin was injected intramuscularly after sponge withdrawal. The proportion of ewes exhibiting overt oestrus within 96 h after the injection was significantly lower (P<0.05) in the L₁ and L₂ eves (86 and 89 %) than in those on the L₃ (100%) and L₄ (100%) treatments, respectively. Mean litter size and fecundity were higher (P<0.05) in the L₃ (1.95) and L₄ (2.05) compared with the L₁ (1.45 and 1.25) and L₂ (1.63 and 1.55) ewes. It is concluded that short-term (21 days) in the level of dietary energy supplementation pre-mating can have a beneficial effect on reproductive performance in ewes.

CITATIONS (17):

Age at puberty and fertility of Rahmani sheep fed on biological inoculated corn silage
E.I. Khalifa, M.E. Ahmed, Y.H. Hafez, O.A. El-Zolaky, K.M. Bahera, A.A. Abido
Annals of Agricultural Sciences