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The Growth Performance of Black Bengal Goat in Village Condition of Bangladesh

L. Y. Asad
Department of Animal Nutrition, Genetics and Breeding, Faculty of Animal Science and Veterinary Medicine, Sher-e- Bangla Agricultural University, Dhaka- 1207.

M. M. S. Tabreze
Department of Animal Nutrition, Genetics and Breeding, Faculty of Animal Science and Veterinary Medicine, Sher-e- Bangla Agricultural University, Dhaka- 1207.

B. F. Amy
Department of Animal Nutrition, Genetics and Breeding, Faculty of Animal Science and Veterinary Medicine, Sher-e- Bangla Agricultural University, Dhaka- 1207.

F. Dadok
Department of Animal Production & Management, Faculty of Animal Science and Veterinary Medicine, Sher-e- Bangla Agricultural University, Dhaka- 1207.

Abstract/ Executive Summary:

The study was conducted about the growth performance of Black Bengal goat in village condition at Savar Upazila under the Dhaka District from June/2017 to April/2018. Least-squares means for body weights at birth, 3, 6, 9 and 12 months of ages were 1.10, 5.02, 8.41, 10.41 and 12.42 kg respectively. Sex has highly significant (p < 0.01) effect on the body weight at 3 months (5.22 ± 0.04 and 4.77 ± 0.04 kg), 6 months of ages (8.74 ± 0.04 and 7.96 ± 0.04 kg) and sex has significant (p < 0.05) effect on the body weight at 9 months (10.66 ± 0.09 and 10.10 ± 0.10 kg) and 12 months (12.88 ± 0.06 and 11.82 ± 0.07 kg) respectively male and female. Type of birth has highly significant (p < 0.01) effect on body weight at birth, 3, 6, 9 and 12 months. Parity has highly significant (p < 0.01) body weight at 3 months (4.95 ± 0.05, 5.04 ± 0.04 and 5.08 ± 0.05 kg) and 12 months (12.21 ± 0.67, 12.39 ± 0.08 and 12.67 ± 0.07 kg) and significant (p < 0.05) effect at birth weight (0.94 ± 0.01, 0.95 ± 0.01 and 0.97 ± 0.01 kg) and 6 months body weight (8.29 ± 0.06, 8.37 ± 0.05 and 8.54 ± 0.05 kg) respectively at 1st, 2nd and 3rd parity. Season has a highly significant (P < 0.01) effect in birth weight (0.91 ± 0.01, 0.99 ± 0.01 and 0.97 ± 0.01 kg), 3 months (4.87 ± 0.04, 5.22 ± 0.04 and 4.89 ± 0.06 kg), 12 months (12.21 ± 0.06, 12.65 ± 0.07 and 12.30 ± 0.10 kg) and season has significant effect (P < 0.05) at 6 months body weights (8.20 ± 0.04, 8.63 ± 0.05 and 8.23 ± 0.07 kg) respectively in winter, summer and rainy season. It can be concluded that male type of sex, single type kid, third parity of dam and summer season was better.

Keywords: Black Bengal goat, Sex, Type of birth, Parity of dam, Season

Location: Three villages under Savar Upazilla of Dhaka district, Bangladesh

Start Date: 00-05-2017

End Date: 00-04-2018

Program Area: Variety and Species

Commodity: Goat

Objectives:

The objectives of the research are given below: 1. To determine the growth performance of Black Bengal goat in village condition. 2. To find out the effects of different factors on body weights at different ages.

Methodology:

Study area and data collection: The goat’s farmers for data collection was selected three villages under Savar Upazilla of Dhaka district. Data were collected the period from May/2017 to April/2018. Data were collected by the researcher himself from the selected goat farmers. Information on growth performance of Black Bengal goat was collected throughout the previous questionnaire with a direct visit to the farmer's house.

Animals and management: This study provided information on housing, feeds and feeding management, mating system and healthcare management of Black Bengal goats. Most of the farmers reared goats in extensive system. Moreover, some farmers keep their goat besides their living room or under the space of their bed. Generally, farmers provided bedding materials (e.g. rice straw, rice bran and dry tree leaves) at winter season. The goats are generally allowed to graze in naturally available pasture land around the village at day time. Parameters studied: In order to growth performance of Black Bengal goats the following parameters were considered:

Growth pattern in different ages of Black Bengal goat: The body weight of Black Bengal goat was taken at birth, 3 months, 6 months, 9 months and 12 months. Generally, the birth weight of kids was recorded 12 hours of kidding using digital balance and only those kids who remained alive were included in the analysis.

Effect of sex on the bodyweight of kids: The sex of the kid was grouped into male and female. It is the gender-identifying character. The effect of sex plays a vital role in the growth performance of their body weight.

Effect of type of birth on growth performance of kids: Type of birth means kidding size. It is also known as litter size which may be single, twins or triplets. Type of birth was grouped into single, twins and triplets. This factor was considered during data collection because type of birth affect the growth performance.

Effect of parity of dam on the bodyweight of kids: Parity of dam means the number of times a female has given birth. When animals give birth 1st time then it is called first parity, when it gives birth 2nd time then it is called second parity, when it gives birth 3rd time then it is called the third party.

Effect of season on growth performance of kids: Season of births also affect the growth performance in different ages. The year was divided into three seasons; winter (from November to February), summer (from March to June) and rainy (from July to October).

Statistical analysis: In this study, the effect of different factors such as age, sex, type of birth, parity of dam and season were investigated on the growth performance of Black Bengal goats in village conditions. For Statistical analyses considering different factors, the significance of fixed effects (non-genetic factors) was tested by least squares analyses of variance using the general linear model (GLM) procedure of the statistical analysis system (SAS, 1998) according to the following model: Y_ijklm= μ + S_i + M_j + R_k + T_l + E_ijklm Where: Y_ijklm: the dependent variable (an individual animal record for the trait). μ: the overall mean. S_i: the fixed effect of i^th sex of kid. M_j: the fixed effect of j^th type of birth. R_k: the effect of k^th parity of dam. T_l: the effect of the l^th season of birth. E_ijklm: the residual error.

Source of Information: http://journal.safebd.org/index.php/jafe; Vol. 1 No. 3 September 2020 Pages 39-46 e-ISSN 2708-5694

Article Link (Online Journal): http://doi.org/10.47440/JAFE.2020.1306

Funding Source:

Budget:

Total Budget (Tk.) :

Achievement/Findings:

The co-efficient of variation at birth weight of Black Bengal goat is highest. Moreover Birth to 3 months growth rate is highest. Type of birth especially single born kids is heavier than twins and triplet. It can be concluded that male sex, single type of birth, third parity of dam and summer season should be better to the growth performance of Black Bengal goat that would be profitable for goat rearing in village condition.

Knowledge Management: Journal