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Compliance Efficacy of Modified Curing Methods to Control Black Bengal Goat Skin Deterioration

M. H. O. Rashid
Department of Microbiology and Hygiene,Bangladesh Agricultural University, Mymensingh

M. P. Siddique
Department of Microbiology and Hygiene,Bangladesh Agricultural University, Mymensingh

M. A. Zinnah
Department of Microbiology and Hygiene,Bangladesh Agricultural University, Mymensingh

M. A. Huq
Department of Pharmacology, Bangladesh Agricultural University, Mymensingh

M. A. Samad
Department of Animal Science, Bangladesh Agricultural University, Mymensingh

M. M. Rahman
Department of Microbiology and Hygiene,Bangladesh Agricultural University, Mymensingh

Abstract/ Executive Summary:

The study was conducted to determine microbial spoilage of skins of Black Bengal goats at various stages and to assess the efficacy of modified curing processes of that skins, during the period of July to November 2006. A total number of six intact skins from Black Bengal goat of two years of age were obtained from markets located at Bangladesh Agricultural University Campus and Mymensingh town. After the usual traditional method of flaying these skins were properly washed prior to curing process. Raw or green skin samples without subjected to treatment process were used as control. Two categories of samples were prepared, one immediately after the completion of flaying, i.e. considered as zero hour of sampling and the other after twenty-four hours of storage at the ambient temperature. The rest of the samples were treated with different preparations of Neem oil, Tolcide (30L), and Busan (40L) and common salt and kept for various periods. From each of the differently treated skins, bacteriological samples were taken aseptically from the regions of shoulder, belly and butt each sampling weighing about 10 grams. The bacteriological analysis of the samples was performed by determining total viable count in order to find out the extent of contamination and varying bacterial load of the three different regions. Moreover, the isolation and identification of various bacteria contaminating the skin samples was done and the efficacy of curing agents to minimize bacterial load and the survivability of microbes were studied. The results showed that Staphylococci, E. coli, Bacillus, Pseudomonas etc bacteria were isolated from raw and cured skin samples and Tolcide (30L) 0.04% and Busan (40L) 0.04% and Neem oil 10% and common salt 20% were the best curing agents from microbial quality point of view.

Keywords: Goats skin, Curing agent, Bacterial load, TVC, TCC, TSC

Location: Mymensingh

Start Date:

End Date:

Program Area: Animal Health and Management

Commodity: Goat

Objectives:

To assess the efficacy of the modified curing method of Black Bengal goat skins commensurating with the reduction of water pollution and to find out the effects of different treatments to be incorporated in the modified curing method.

Methodology:

The whole study was conducted in the Department of Microbiology and Hygiene, during the periods of July to November 2006. A total number of six intact skins from Black Bengal goat of two years of age were obtained from markets located at Bangladesh Agricultural University (BAU) Campus and Mymensingh town. After the usual traditional method of flaying these skins were properly washed prior to curing process. Raw or green skin samples without subjected to treatment process were used as control. Two categories of samples were prepared, one immediately after the completion of flaying, i.e. considered as zero hour of sampling and the other after twenty-four hours of storage at the ambient temperature. The rest of the samples were treated with different preparations of Neem oil, Tolcide (30L), and Busan (40L) and common salt and kept for various periods as per recommendation of Samad et al. (1984) and Kirtikar and Basu (1995). From each of the differently treated skins, bacteriological samples were taken aseptically from the regions of shoulder, belly and butt each sampling weighing about 10 grams. The bacteriological analysis of the samples was performed by determining selected bacterial attributes of the three different regions. Moreover, the isolation and identification of various bacteria contaminating the skin samples was done and the efficacy of curing agents to minimize bacterial load and the survivability of microbes were studied. Samples collection, transportation and inoculum preparation: Skin portion were excised aseptically from shoulder, belly and butt regions of apparently healthy Black Bengal goat of one 1 year 9 month to 2 two years of age each weighing about 10 grams, using sterile instruments and transferred carefully to sterile containers. The samples were brought to the laboratory within 30-45 minutes for subsequent studies to determine the bacteriological status

Source of Information: Bangl. J. Vet. Med. (2008). 6 (2): 191–196

Article Link (Online Journal):

Funding Source:

Total Budget (Tk.) :

Achievement/Findings:

A highly significant correlation (p>0.01) was found between TVC and TSC, But, no significant correlation was found between TVC and TCC (p>0.01) also between TCC and TSC (p>0.01). Correlation between TVC and TSC signified that staphylococcal count could be taken as an index of bacteriological quality of the hide and skin samples, but as there was no significant correlation between TVC and TCC, so counts of Coliforms could not be taken as a good index of bacteriological quality of skin samples, although high coliform counts present may cause alarms of potential hazards related to fecal contaminations

Knowledge Management: Journal