Study on productive and reproductive performances of goats under Backyard farming at Northern part of Chattogram, Bangladesh.

Abstract

The study is carried out to know and compare the productive and reproductive performances of the Black Bengal, Jamnapari, Crossbred and Haryana goats reared under backyard system in the northern part (Fatickchari upazila) of Chattogram district. For this study, data on productive and reproductive traits were collected randomly from 102 female goats (doe) by using a questionnaire. These data were collected over 2.5 months from 15th February to 30th April, 2022. In this study, mainly data were collected for body weight, flock size with sex ratio, litter size in different parity with sex ratio. Other traits such as rearing system, feeding system, milk production, disease condition, management system, breeding system were also analyzed. In backyard system goats were mainly reared under semi-intensive system with mix feeding. Haryana breeds were kept rarely, so it was quite difficult to compare the performances of this breed. Mean flock size was 5.02 with min. 1 and max. 10. Male and female ratio was 1:1.14 (adult animal). Mean age was 22.16±1.35 months. Average BCS was 2.85±0.03. Highest body weight (Mean± SE) was found in case of Haryana breed (40.00±0.00) and lowest in Black Bengal (15.12±0.44). For Jamnapari body weight (Mean± SE) was (20.85±1.25) and (24.56±1.24) for Crossbred with overall (19.24±0.68). Litter size were highest for Crossbred. In case of Black Bengal litter size was highest in second parity (1.62±0.11). Overall litter size was highest in first parity (1.90±0.06) and lowest in third parity (1.53±0.11). Also, litter size was highest in first parity (2.11±0.11) for natural breeding rather than AI. Kid sex ratio were almost equal for natural breeding and AI. Overall male and female ratio in first, second and third parity were 1:1, 1:1.17 and 1:0.84, respectively. The findings of this study would be the future solution of poverty in the study area as well as in Bangladesh.