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Comparative Study on Carcass Characteristics Between Black Bengal and Crossbred Goats

M. Asaduzzaman
Department of Animal Breeding and Genetics, Bangladesh Agricultural University, Mymensingh-2202, Bangladesh

M. R. Alam
Department of Animal Science, Bangladesh Agricultural University, Mymensingh-2202, Bangladesh

M. R. Amin
Department of Animal Science, Bangladesh Agricultural University, Mymensingh-2202, Bangladesh

M. O. Faruque
Department of Animal Breeding and Genetics, Bangladesh Agricultural University, Mymensingh-2202, Bangladesh

Abstract/ Executive Summary:

This study was conducted on Black Bengal and crossbred goats thrives in the western part of Bangladesh for comparative evaluation of their carcass yield and meat quality. Thirty male goats (15 Black Bengal and 15 crossbreds) slaughtered in the slaughter house of Rajshahi city corporation were evaluated for carcass quantity and quality. The average slaughtering age was 12.60 and 12.40 months, and dressing percentage 43.71% and 45.86% for Black Bengal and crossbred goats, respectively. Crossbred goats had significantly (P<0.01%) higher dressing percentage than the Black Bengal goats. The total edible and non edible portions of Black Bengal and crossbred goats did not differ significantly (p>0.05). The percentage of moisture, crude protein, ether extract and ash contents were 72.79, 21.90, 3.72 and 1.15 for Black Bengal goat and 73.46, 20.85, 4.51 and 1.08 for crossbred goats, respectively. There was no significant difference (p>0.05) among moisture, crude protein, ash content (%) of Black Bengal and Crossbred goats. However, the carcass of crossbred goats contained more fat (ether extract) (p<0.05) compared to the Black Bengal goat. The higher carcass yield and dressing percentage observed in crossbred goats reflected to yield more meat compared to the Black Bengal goat.

Keywords: Black Bengal and Crossbred goat, Dressing percentage, Chemical composition

Location: The slaughter house of Rajshahi city corporation

Start Date: 00-06-2008

End Date: 00-09-2008

Program Area: Animal Health and Management

Commodity: Goat

Objectives:

1. To find the carcass quantity and quality of Black Bengal and crossbred (Black Bengal X Sirohi) goat in the western part of the country.

Methodology:

The data were obtained from Black Bengal and crossbred goats from 30 male goats (15 Black Bengal and 15 crossbred goats) of approximately one year of age slaughtered at the slaughter house of Rajshahi city corporation during the month of June to September, 2008. The age of the animals was estimated by visual observation, interviewing the owners and by dentition. The weight of the goat, carcass and different body portions was taken with the help of weighing balance. Representative meat samples from 10 male goats (5 Black Bengal and 5 crossbred goats) were collected for chemical analysis. Data on empty stomach body weight at slaughter, warm carcass weight and weight of visceral organs (heart, liver, lung, pluck, kidney, spleen) head, gut, legs and skin were weighed and recorded. Blood were collected in the polythyne packet and weighed with the help of weighing balance. Meat samples from different parts of carcass of Black Bengal and crossbred goats were ground separately and representative samples for each breed analyzed for moisture, crude protein (CP), ether extract (EE) and ash on fresh basis in Animal Science Laboratory of Bangladesh Agricultural University, Mymensingh. All the experimental data were analyzed for their differences by paired t- test using statistical package for social science 11.5 (SPSS 11.5) (SPSS Inc. 1999, Microsoft Corporation, 1998) windows package.

Source of Information: J. Bangladesh Agril. Univ. 7(1): 87–90, 2009; ISSN 1810-3030

Article Link (Online Journal):

Funding Source:

Total Budget (Tk.) :

Achievement/Findings:

It can be concluded that the carcass yield and dressing percentage of crossbred goats were higher than those of Black Bengal goats. This might be due to heterosis effect. Meat quality of crossbred goats in terms of chemical composition (moisture, crude protein and ash content) was almost similar to that of Black Bengal goats with exception to higher percent of ether extract in crossbred goats.

Knowledge Management: Journal