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Gross Morphometrical Analysis of Muscles of Different Body Regions of Adult Wether (castrated Black Bengal Goat) and Its Carcass 'characteristics' -hl

M. T. Rahaman
Department of Anatomy and Histology, Dinajpur Government Veterinary College, Dinajpur

M. Z.l. Khan
Department of Anatomy and Histology, Faculty of Veterinary Science, Bangladesh Agricultural University, Mymensingh-2202, Bangladesh

M. R. Karim
Department of Anatomy and Histology, Faculty of Veterinary Science, Bangladesh Agricultural University, Mymensingh-2202, Bangladesh

Z. Haque
Department of Anatomy and Histology, Faculty of Veterinary Science, Bangladesh Agricultural University, Mymensingh-2202, Bangladesh

Abstract/ Executive Summary:

The morphometrical analysis of muscles of different body regions and carcass characteristics of adult wethers (castrated black Bengal goat) were studied. This experiment was conducted in the Department of Anatomy and Histology during the period from February to May 2005. Muscles of different body regions of wether were found to differ in length, breadth and thickness. Highest length (38.7 ± 0.7 em) was recorded in rectus abdominis and followed by brachiocephalicus (38.5 ± 0.I cm), sternomandibularis (30.5 ± 0.9 cm), sternohyoideus (29.7 ± 0.2 cm) and stemathyroideus (29 ± 1.5 cm) muscles. The abdominal muscles, especially the transversus abdominis muscle possessed highest breadth (13.7 ± 6:9 cm) were wider than me other muscles of the body. The craniolateral muscles of !high had the highest thickness in compariSQn to other muscles of tile body. Carcass characteristics regarding hot carcass weight, dressing percentage and percentage of lean, fatand bone were studied. Dressing percentage, lean, fat and bone percentages were 59.34:!: 0.5, 60.91 ± 1.03, 14.78 ± 1.13 and 24.30 ± 0.2 respectively. This study revealed that the length, breadth and thickness of muscles varied between the different groups of muscles, and also in the same group of muscle of the body and castrated Black Bengal goat had the lean percentage similar to the other breeds of world but a little higher bone percentage and lower fatpercentage than the other breeds of the world.

Keywords: Morphometry, Musdes, Wether, Carcass

Location: Department of Anatomy and Histology, BAU, Mymensingh

Start Date: 00-02-2005

End Date: 00-05-2005

Program Area: Animal Health and Management

Commodity: Goat

Objectives:

The present work has been carried out to study the morphometry of muscles of different body regions of adult wether and its carcass characleristics in term of lean, fat and bone percentage and their ratio.

Methodology:

Three castrated Black Bengal goats of I year age were used to study the gross morphometry of muscles of different body regions. The animals were purchased from the Muktagacha thana of Mymensingh district. The age was determined by dentition and asking owner and the body weight was taken by means of measuring tape applying the Shaeffer's formula. The animals were bled to death by giving incision on carotid artery and dissection was carried out in the laboratory of the Department of Anatomy and Histology, Bangladesh Agricultural University, Mymensingh. Subcutaneous fat was collected carefully. After opening the thoracic and abdominal cavities, the fatty tissues surrounding the different organs such as peri-renal fat, peri-cardia! fat, gut fat, scrotal fat were separated and then the visceral organs were removed and weighed. The muscles of the different regions (head, neck, forelimb, hind limb, thorax and abdomen) of the body were dissected out carefully and measured their length, breadth and thickness by using divider and scale (em) in unfixed condition of the animals.

Source of Information: Bangl. J. Vet. Med. (2005). 3 (2): 144-147

Article Link (Online Journal):

Funding Source:

Total Budget (Tk.) :

Achievement/Findings:

The present study has estimated lean:bone = 2.5 and lean:fat = 4.19 in 18.6 kg castrated Bengal goat (wether). Warmington and Kirton (1990) reported lean:bone = 5.12 and Jean:fat 2.95 in 17 kg of Boer male goat while lean:bone = 2.80 and Jean:fat = 4.29 in 20 kg of Saanen male goat. In comparison to the previous report, the castrated Bengal goat (wether) has a little higher lean:fat ratio whereas a little lower lean: bone ratio.

Knowledge Management: Journal