Advisor: Chavan, Dr. S. D.Authors: WAGH, PUNAM PRAKASHRAO.2023-12-282023-12-282021-03-12Citation: WAGH, PUNAM PRAKASHRAO. (2020). Effect of growth promoters on the performance of goat kids. Department of Animal Husbandry and Dairy Science, Dr. Panjabrao Deshmukh Krishi Vidyapeeth, Akola. Ph. D. 2020. Print. xvi, 181p. (Unpublished).https://krishikosh.egranth.ac.in/handle/1/5810204921Abstract: The present study entitled “Effect of Growth Promoters on the Performance of Goat Kids” was carried out from 15 October to 15 January, 2017-2018 at Livestock Instructional Farm, Department of AH & DS, Dr. PDKV, Akola to evaluate the effectiveness of growth promoters and its subsequent effects on the performance of goat kids. A sixteen goat kids were selected from the livestock instructional farm, on the basis of nearness to the age and weight. The selected kids were randomly divided in to 4 groups containing 4 kids in each treatment. Treatments provided to goat kids formulated as control i.e T1: Feed as per the standard, T2: Feed as per standards + 3 g Lactobacillus acidophilus per Kg, T3: Feed as per standards + 3 g Saccharomyces cerevisiae per Kg and T4: Feed as per standards + mixture of 1.5 g Lactobacillus acidophilus + 1.5 g Saccharomyces cerevisiae per Kg. Dry matter of tur straw, Berseem green and concentrates (sugras) recorded were provided 92.00, 20.50 and 89.90 per cent respectively, while the other nutrients were on percent basis i.e CP (11.8, 17.5 and 20.80), EE (2.6, 2.5 and 2.6), CF (34.86, 25.5 and 10.50), NFE (39.40, 40.30 and 62.33) and ash (11.34, 14.20 and 3.77). The crude fiber and NFE content of tur straw indicated that tur straw was more coarse and fibrous. Berseem green was rich in minerals on the basis of its total ash content. On an average the kid consumed 0.556, 0.595, 0.611 and 0.663 kg total fresh feed under T1, T2, T3, and T4 treatments respectively. This Indicated that there was increase in feed intake under T4 treatment groups as compared to T1 T2, and `T3 groups. The average dry matter intake was 0.319, 0.344, 0.354 and 0.382 in T1, T2, T3, and T4 respectively.The kid from T4: feed as per the standard + 1.5g Saccharomyces cerevisiae +Lactobacillus acidophilus received significantly higher DM over that of untreated group i.e. T1. Results of experiment showed that supplementation of growth promoters affected dry matter intake during the experimental period i.e., lowest in treatment T1 (0.319 kg/kid) group and highest in T4 (0.382 kg/kid), on the 100 kg body weight basis. It was lowest in T4 i.e. (3.47kg) and highest in T1 i.e. (3.51kg). It was observed that average water intake over the experimental period recorded as 0.520, 0.550, 0.590 and 0.670 lit /day /kid under T1, T2, T3, and T4 groups respectively, the differences being significant. Significantly higher water intake was noticed in T4 and T3 groups followed by T2, T1 groups. The higher water consumption was found in treatment T4 (0.670 lit /kid). Significantly higher growth performance in body weight of goat kid i.e.11.02 kg was obtained on feeding T4. The total highest weight gain was observed in T4 (4.69) fallowed as T3 (3.91) T2 (3.82), and T1 (3.11kg) respectively. Significantly higher chest girth (53.73 cm) and total gain in chest (7.25 cm) was noticed when the kid were reared on T4. It was observed that highest body length and body height was recorded in T4 i.e. 48.16 and 54.81 cm respectively and total gain in length and height recorded as (5.51) and (5.42). Haemoglobin content was recorded was 9.80, 10.06, 10.15 and 10.15 (g%), plasma glucose 64.15, 64.17, 64.20 and 64.14 mg/dl, serum total protein 5.69, 5.76, 5.83 and 5.86 g/dl, average albumin content 2.01, 2.06, 2.09 and 2.11 (g/dl), average globulin content 3.68, 3.70, 3.74 and 3.75 (g/dl) and cholesterol content 76.47, 76.56, 76.47 and 76.49 mg/dl in T1, T2 T3 and T4 groups respectively. The Hb (10.15 g%), Serum total protein (5.86 g/dl), albumin (2.11 g/dl) and globulin (3.75 g/dl) content were higher in combination of promoters, on the other hand in plasma glucose and cholesterol was lower. Significantly higher feed conversion efficiency ratio was observed in T4 group i.e.1.73. It was concluded that, supplementation of growth promoters significantly improved growth performance of kids. No adverse effect of different feed was noted which indicated that all blood parameters were in normal range and to be seemed healthy. The supplementation of growth promoters had positive effect on the economics of goat production.EnglishThesis