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Comparison of Phenotypic Characterization, Productive and Reproductive Performance of Pure Black Bengal and Crossbred Goat

Sumaiya Parven
Jhenidah Government Veterinary College, Jhenidah

Md. Abdus Samad
Jhenidah Government Veterinary College, Jhenidah

Sharifuzzaman
Department of Pathology and Parasitology, Jhenidah Government Veterinary College, Jhenidah

Begum Mansura Hassin
Department of Animal Science and Nutrition, Jhenidah Government Veterinary College, Jhenidah

Abu Jafur Md. Ferdaus
Department of Dairy and Poultry Science, Jhenidah Government Veterinary College, Jhenidah

Abstract/ Executive Summary:

The study was conducted between Pure Black Bengal (PBB) and crossbred (CBB) goat to compare the phenotypic features, morphometry, production and reproduction performance. A total number of 87 goats from which 26 PBB goats from Government Goat Development Sub center, Jhenidah and 61 CBB goats from Alamdanga Upazila and Jhenidah Sadar Upazila were collected for this study from November 2019 to January 2020. The prominent coat color was black in both PBB and CBB but in the case of 55.74% CBB has long hair in its hindquarter but it was totally absent in PBB. The average value of morphometric measurements was compared between sex and age. The result indicated that the height of wither and rump, length of the horn, ear, head and scrotum were higher (p<0.05) in CBB (77.57, 75.03, 12.17, 23.16, 22.33 and 12.98cm, respectively) than PBB buck (58.93, 61.47, 10.97, 13.00, 17.78 and 9.86cm, respectively). The measurement between the does indicated that the horn length was higher (P<0.001) in PBB doe but ear length was higher (p<0.01) in CBB than PBB. In case of kids, height of wither, heart girth and ear length were higher (p<0.01) in CBB (36.9, 31.39 and12.7cm, respectively) than PBB (30.48, 24.77 and 7.8cm, respectively). The average milk production of PBB (390.44 ml/day) was significantly (p<0.01) lower than CBB (1045.01 ml/day) but the litter size was significantly (p<0.05) higher in PBB (2.30) than CBB (1.77). The age of puberty, age of first kidding and kidding interval were better (P<0.01) in PBB (205.30, 355.5 and 200.30 days, respectively) than CBB (275.92, 401.5and 273.77 days, respectively). The study revealed that the morphologic and morphometric characteristics were higher in CBB and quite altered from PBB due to indiscriminate cross-breeding and the reproductive performance were better in PBB in comparison with CBB. These data may help in identifying the current status of Black Bengal goat and contribute to in situ conservation of the breed

Keywords: Black Bengal goat, Black Bengal cross, Morphometry, Productive and reproductive performance

Location: Alamdanga upazila, Jhenidah sadar upazila and Jhenidah Government Goat Farm

Start Date: 00-11-2019

End Date: 00-01-2020

Program Area: Animal Health and Management

Commodity: Goat

Objectives:

To study the morphological characteristics, productive and reproductive performance of pure Black Bengal goat (PBB).

Methodology:

The study was conducted at the selected area of Alamdanga upazila, Jhenidah sadar upazila and Jhenidah Government Goat Farm in the period of November 2019 to January 2020. Sixty-one (61) crossbred Black Bengal (CBB) goats of both sex from the different farm and household of the upazila of Alamdanga and Jhenidah sadar upazila and twenty-six (26) pure Black Bengal (PBB) goats of both sexes from the Government Goat Development Sub center, Jhenidah were randomly selected for this study. The goat’s selection was done on the basis of 5 categories (doe, buck, wither, kids before and after weaning). A questionnaire was developed according to FAO (2012) animal health and production guidelines. The qualitative, productive and reproductive data was collected by personal interaction with the owner of the goat and goat farm attendant. Sex, coat color pattern, hair type, ear orientation, and presence of horn and long hair in hind quarter. The height measurement (inch) was performed using a graduated measuring rule while length measurement (inch) was taken using a measuring tape. All measurements were carried out by the same person in order to avoid individual variations. The following traits were used to measure the productive and reproductive performance of PBB and CBB goats- the birth weight of kids, litter size, gestation period, kidding interval, age of puberty, milk production and age of first kidding. The obtained data were cleaned, loaded and stored on the Excel spreadsheet 2007. Then the data of quantitative variables were arranged and transferred to the software SAS (Statistical Analysis Software) to calculate the Mean and Standard Error (SE) of both genotypes and paired T-test was performed to know the significance level between genotypes for different traits. Duncan’s Multiple Range Test was used to determine the significant differences between means.

Source of Information: International Journal of Natural and Social Sciences, 2020, 7(4):127-135

Article Link (Online Journal): DOI: 10.5281/zenodo.4519127

Funding Source:

Budget:

Total Budget (Tk.) :

Achievement/Findings:

Comparison between Pure Black Bengal and their cross in the term of phenotypic characters, productive and reproductive performance were established through the present investigation. The study revealed not only the noticeable changes in black Bengal goat due to cross-breeding but also highlighted the excellent reproductive performance of black Bengal goat. However, this study gives some basic information about Black Bengal and its crossbred goats which could be utilized to characterize the pure Black Bengal and helps to prevent the national resource from eroding.

Knowledge Management: Journal