The study was conducted at Mountain Research Centre for Sheep and Goat (MRCSG) Shuhama, SKUAST-K with the objective to observe impact of watering temperature and mineral supplementation on the performance of pregnant ewes during winter, which is a critical period for the sheep industry in Jammu and Kashmir. A total of 40 pregnant Corriedale ewes, aged from 3 to 5 years, in their last trimester of gestation were divided into four uniform groups (Groups A, B, C, and D) with 10 animals in each group on basis of body weight and parity. Four different treatments were given to animals. Group A animals were given cold water (5 °C), Group B animals were provided with warm water (20 °C), Group C animals were given cold water (5 °C) along with mineral mixture 10 g/animal/day, lastly Group D animals were provided warm water (20 °C) along with mineral mixture 10 g/animal/day. Over the period of experiment, water and feed intake, body weight, body condition score, biochemical parameters and wool quality were recorded in the study. The results indicated a significant difference (p ≤ 0.05) in average water intake between the cold and warm water groups, regardless of mineral supplementation. The average water intake was highest in Group D (20.08 ± 0.26 L) which differed significantly from Group A (16.1 ± 0.18 L). The average feed intake also differed significantly (p ≤ 0.05) among the cold and warm water treatment groups, irrespective of mineral supplementation. The average feed intake for Group B and Group D was 16.78 ± 0.04 and 16.59 ± 0.08 kg, respectively that differed significantly from Group A and Group C having an average feed intake of 15.12 ± 0.07 kg and 15.12 ± 0.08 kg, respectively. The animals exhibited improvement in body condition score (ranging from 2.71 ± 0.13 to 3.04 ± 0.19) until lambing, and those changes were significant (p ≤ 0.05) among all treatment groups. Biochemical parameters like glucose, creatinine, BHBA, cortisol, and phosphorous, were within the normal ranges and did not show any statistically significant difference between the treatment groups. However, blood urea nitrogen (BUN) levels remained elevated above the normal prescribed range in all treatment groups. However, the levels were significantly (p ≤ 0.05) lower in treatment groups provided warm water in the parturition and post parturition phase, ranging between 19.64 ± 1.28 to 24.83 ± 1.38 mg/dL. Significant (p ≤ 0.05) differences were observed in calcium levels in treatment groups with the groups C and D, supplemented with the mineral mixture having higher levels of serum calcium. The calcium levels were 7.55 ± 0.04 and 7.53 ± 0.06 mg/dL for group C and D respectively. Similar trend was observed for magnesium levels, which were higher and differed significantly (p ≤ 0.05) in supplemented groups C and D, in pre and post-partum period. Among the wool quality parameters, staple length, fiber diameter, medullation and burr content were not varying significantly among the treatment groups, indicating no profound impact of water temperature and mineral supplementation. The present study revealed that augmenting the drinking water temperature and supplementing the feed with minerals contributed to better water and feed intake. However, no profound impact of these interventions was observed on biochemical and wool quality parameters except for crimp frequency. The crimp frequency ranged between 2.15 ± 0.04 to 2.67 ± 0.05 and varied significantly (p ≤ 0.05) among the treatment groups.
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