Year: 2023 | Month: October | Volume 13 | Issue 5
A Study of Reproductive Traits in Magra Sheep
Manju Bissu
Urmila Pannu
H.K. Narul
Ashish Chopra
Manju Nehara and Anil Ghorela
DOI:10.30954/2277-940X.05.2023.12
Abstract:
Magra sheep is well accommodated in semi- arid region of India and primarily raised for wool and meat purpose. The data for the present investigation were obtained from the records of organised flock of Magra ewe for the years 1997-2016, located at the Arid Region Campus of the ICAR-Central Sheep and Wool Research Institute, Beechwal, Bikaner. Traits that analysed as age at first service (AFS; 571.43 ± 6.55 days), weight at first service (WFS; 30.07 ± 0.14 Kg), age at first successful service (ASS; 608.66 ± 8.06 days), weight at first successful service (WSS; 30.39 ± 0.18 Kg), age at first lambing (AFL; 761.02 ± 8.53 days), eweʼs weight at lambing (WL; 32.18 ± 0.17), conception rate ( CR; 0.68 ± 0.02) and days to lambing (DL; 171.94 ± 0.90). For the reproductive traits, the data were adjusted for the effect of non-genetic factors as period of birth and sire of ewe significantly affected all the reproductive traits. Season of birth of ewe was significantly affected to AFS, WFS and WSS. Ewe’s weight at birth had a significant influence on AFS, WFS, ASS, WSS and WL. Inbreeding coefficient had a significant influence on WFS. Sires of ewes were included as random genetic effect. AFS, WFS, ASS, WSS and AFL were significantly influenced by their respective covariates. This study indicates that eweʼs with better body condition showing superior reproductive performance.
Highlights
- Study focus on the reproductive traits of Magra sheep.
- Non-genetic factor affect the reproductive traits
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