Reproductive performance and body condition score of Deccani sheep during various physiological stages in different farming systems

S A KOCHEWAD; TRAGHUNANDAN; KSARJAN RAO; K KONDAL REDDY; NNALINI KUMARI; DBV RAMANA; SANJEEV KUMAR; L R MEENA; S P SINGH

doi:10.56093/ijans.v88i12.85796

Authors

S A KOCHEWAD Scientist, ICAR-Indian Veterinary Research Institute, Izatnagar, Uttar Pradesh, India
TRAGHUNANDAN Associate Dean, College of Veterinary Science, Korutla, Telengana, India
KSARJAN RAO Dean of Student Affairs, Sri Venkateswara Veterinary University, Tirupati, Andhra Pradesh, India
K KONDAL REDDY Associate Dean, Department of Animal Nutrition
NNALINI KUMARI Associate Professor and Head, Department of Animal Nutrition
DBV RAMANA Principal Scientist, ICAR-Central Research Institute for Dryland Agriculture, Santoshnagar, Hyderabad, Telangana, India
SANJEEV KUMAR Scientist, ICAR National Dairy Research Institute, Karnal, Haryana, India
L R MEENA Principal Scientist, ICAR-Indian Institute for Farming Systems Research, Modipuram, Meerut, Uttar Pradesh, India
S P SINGH Assistant Chief Technical Officer, ICAR-Indian Institute for Farming Systems Research, Modipuram, Meerut, Uttar Pradesh, India

https://doi.org/10.56093/ijans.v88i12.85796

Keywords:

Body condition score, Deccani sheep, Farming systems, Reproduction

Abstract

The research was carried out to study the effect of different farming systems on reproductive traits and body condition score in Deccani sheep. Ewes (36), 9–12 months of age, were divided in to 3 groups, viz. intensive (T1), semi-intensive (T2) and extensive farming system (T3) with 12 ewes in each group following completely randomized design. The results revealed that, body weight at puberty in intensive group (17.6 kg) was significantly higher than extensive (16.3) group. Age at puberty in extensive group was significantly higher (338 days) than intensive group (290 days). The conception rate in intensive group was 75%, which was higher than semi-intensive and extensive (58.3 and 66.6% respectively). Intensive group had achieved significantly higher body weight at lambing (24.74 kg) than semi-intensive (23.12 kg) and extensive (22.23 kg). Birth weight of lambs in intensive group (2.5 kg) was significantly higher than semi-intensive (1.98 kg) and extensive groups (1.82 kg). Length of estrus cycle and duration of oestrus differed nonsignificantly in different farming systems. BCS values were significantly higher during pregnancy in intensive group. BCS near parturition (48 h near) and BCS 3 months (post-parturition) was significantly higher in intensive as compared to semi-intensive and extensive. BCS (48 h after parturition) was significantly higher in intensive and semi-intensive systems with respect to extensive system. It can be concluded that reproductive traits and body condition score were higher in intensive system compared to other systems because care of life stages through provision of concentrate feed, with minimal body energy loss can be assured in intensive farming system.

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