The  Growth Performance of Native Sheep under Semi-Intensive Production System in Bangladesh

Shiuly Akter Mowsume; M. A. M. Yahia Khandoker; Sadek Ahmed; Nure Hasni Disha; Mohammad Mahbubul; Asma Khatun; Md. Younus Ali

Authors

Shiuly Akter Mowsume Department of Animal Breeding and Genetics, Bangladesh Agricultural University, Mymensingh-2202
M. A. M. Yahia Khandoker Department of Animal Breeding and Genetics, Bangladesh Agricultural University, Mymensingh-2202
Sadek Ahmed Bangladesh Livestock Research Institute, Savar, Dhaka-
Nure Hasni Disha Bangladesh Livestock Research Institute, Savar, Dhaka-1341
Mohammad Mahbubul Haor and Char Development Institute, Bangladesh Agricultural University, Mymensingh-2202, Bangladesh
Asma Khatun Department of Animal Science, Bangladesh Agricultural University, Mymensingh-2202
Md. Younus Ali Animal Breeding and Genetics

Keywords:

Growth Performance, Native Sheep, Season

Abstract

The aim of this study was to investigate the growth performance of Bangladeshi native sheep under a semi-intensive production system. Data were collected from 382 native sheep of Costal (205), Jamuna River Basin (67), and Barind (110), respectively. The concentrate mixture (17% CP, 11 MJ ME/kg DM) was given twice daily at rates of 200, 250, and 100 g, respectively per head per day for rams, ewes, and lambs, respectively. Lamb's live weights were taken at 15 days intervals up to three months and then measured at 6 months of age using a digital scale in the early morning before feeding and watering. The mean birth weight of native sheep was 1.46±0.01 kg, where the highest was found in Coastal (1.53±0.12 kg) followed by Jamuna River Basin (1.44±0.02) and Barind (1.35±0.02). A significant (p<0.05) effect of litter size was noticed on birth weight and the highest was found in Coastal (1.76±0.06 kg) followed by Jamuna River Basin (1.55±0.04 kg) and Barind (1.41±0.03 kg) in case of single lambing. But in contrast, the lowest litter size (1.21±0.15) was found in Coastal than Barind (1.58±0.29) and Jamuna River Basin (1.55±0.25). The highest body weight of Coastal males (7.2±0.28 kg) and females (6.6±0.24 kg) was recorded among the three groups at three months of age. Moreover, the body weight of Costal (11.78±0.15 kg) was found highest followed by Jamuna River Basin (11.06±0.52 kg) and Barind (9.94±0.16 kg) at six months of age ignoring the effect of sex. A significant (p<0.001) effect of sex was observed on birth, body weight, and average daily gain where male lambs were always heavier than female lambs. However, the season had a significant (p<0.05) effect on the birth weight and average daily gain at three months of age. Therefore, based on the growth performance, it can be concluded that Coastal sheep might be profitable for sheep farming in Bangladesh and also can contribute to meet up the shortage of meat. Moreover, drawing a precise conclusion in this regard requires further study with a large sample size including nutritional and other managemental aspects.

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