Effects of Slaughter Weights on Meat Yield and Chevon Characteristics of West African Dwarf Goat (bucks)

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N. N. Ayanniyi
O. O. Olusola
O. Kenneth-Obosi
S. A. Adeyemi
A. Umar
J. N. Eze
A. D. Orimogunje

Abstract

The study was conducted at the Ruminants section of the Teaching and Research Farm of the University of Ibadan, Ibadan to evaluate the effects of slaughtering weights on the meat yield and other chevon characteristics of West African Dwarf bucks (WAD). Fifteen WAD bucks were fed similar diets before sacrificing nine at three pre-determined weights of 15, 20 and 25kg to evaluate relative percentage proportions of Eviscerated Weight-EW, Hot Carcass Weight-HCW, Dressing percentage-DP, Rib Eye Area-REA, Meat to Bone Ratio-MBR and Total Fat Deposit-TFD in a Completely Randomised Design (CRD). Also evaluated were the physicochemical characteristics of each of the carcasses relative to the pre-determined weights. The results showed that the EW ranged from 62.0% in 15kg-bucks to 71.8% in 25kg-bucks, while HCW ranged from 52.1% in 15kg-bucks to 55.3% in 25kg-bucks. The 25kg-bucks had the highest TFD of 4.7±0.3% compared with 3.1±0.1% and 4.4±0.4% in 15 and 20kg-bucks, respectively. Bucks with higher weights elicited more REA as compared with those with lower weights. However, there was an inverse relationship between ether extract and the crude protein as the weights of the bucks increased. The DP was not significantly different among the treatments. In conclusion, the higher weights observed in the bucks were not necessarily in terms of meat value but only in terms of fat. This goes to show that when an animal has reached its full maturity, it doesn’t add more meat but rather it accumulates fat.

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How to Cite
Ayanniyi, N. N., Olusola, O. O., Kenneth-Obosi, O., Adeyemi, S. A., Umar, A., Eze, J. N., & Orimogunje, A. D. (2022). Effects of Slaughter Weights on Meat Yield and Chevon Characteristics of West African Dwarf Goat (bucks). BADEGGI JOURNAL OF AGRICULTURAL RESEARCH AND ENVIRONMENT, 4(3), 18–27. https://doi.org/10.35849/BJARE202203/71/003
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References

Abule, E. (1998): Role and decision making power of women in livestock production

around Adami Tulu. ESAP (Ethiopian Society of Animal Production). Proceedings of 6th Annual Conference of the ESAP held in Addis Ababa, Ethiopia, August 14-15 May 1998. pp 95-102.

Adegbuyi, J. O, Loosli, J. K, Okubanjo, A. O. and Ngere, L. O. (1979): Carcass profile of Red Sokoto and West African Dwarf goat crosses of defined age and sex. East African Agriculture Forage Journal. 44: 318 – 321

Adu, I. F, Aina, A. B. J and Okeleye, K. A (1996): On- Farm Establishment and

Productivity of Gmelina and Gliricidia as browse for Goats. Nigerian Journal of Animal Production.23 (1): 47 – 52.

Aduku A. O. and Olukosi, J. O. (2000): Animal Products Processing and Handling in the Tropics. Living Books Series GU Publication, Abuja, Nigeria pp 24 – 32

Akinleye, S.B. ( 2020) Nutritional properties and microbiological loads of meatfloss prepared from mutton of four breeds of rams, European Journal of Food Science and Technology

Vol.8, No.3, pp.23-33, August 2020

Al-Jaryan, L. J. A., Alkass, J. E., Juma, K. H. (1995): Slaughter weight, feeding level and

their relation to some fattening and carcass characteristics in Awassi lambs. BEASTCD, 1989-8/98,; AN: 971412932.

Anurudu, F. N. (2011) Animal Husbandry Techniques: Sheep and Goat Production. Chapter 1 pp 2-3.

Anderson, H. A., Oksbjerg, N., Young, J. F., and Therkildsen, M.(2005): Feeding and

Meat quality- a future approach, Meat Science, 70;543-554.

Anjaneyulu, A. S. R; Thomas, R and Kondaiah, N. (2007) Technologies for value added buffalo meat products – A Review. American Journal of Food Technology 2(3): 104 – 114.

American Meat Foundation (1971): The Science of Meat and Meat Products, W.H Freeman and Co., San Francisco.

AMSA (1991): Guidelines for meat colour evaluation American Meat Science Association Committee on Guidelines for Meat Colour Evaluation Proceedings of the Reciprocal Meat Conference Vol. 44.

AMSA (1995): Research Guidelines for Cookery, Sensory Evaluation and Instrumental Measurements of fresh meat. National Livestock and Meat Board. Chicago, IL, USA.

Anderson, H. A., Oksbjerg, N., Young, J. F., and Therkildsen, M.(2005): Feeding and

Meat quality- a future approach, Meat Science, 70;543-554.

Dhanda, J. S., D. G. Taylor, P. J. Murray (2003): Growth carcass and meat quality

Parameters of male goats: effects of genotype and liveweight at slaughter. Small Ruminant Research. 50, 57-66.

El-Hag, M.G., Al-Shargi, K.M., (1996): Feedlot performance and carcass characteristics

of local and cross-bred (Local H Chios) F1 sheep fed on by-products-based diet. Journal of Applied Animal Research. 8, 197±202.

FAO (2000): Food and Agricultural Organization of the United Nations. Rome Quarterly Bulletin Statistics. Vol. 1.

Field, R. A. and Schoonover, C. D. (1967): Equations for Comparing longissimus dorsi areas in bulls of different weights. Journal of Animal Science 26: 709.

Getahun Legesse, (2001): Growth pattern and carcass characteristics of Somali and Mid-

Rift valley goats. MSc thesis, Alemaya Univesity, Ethiopia.

Kumar, S., Tiwari, S. P. and Narang, M. P., (1991): Effect of different planes of nutrition

On carcass characteristics in Gaddi goats. Indian Vet. J. 68, 953-956.

Nakev, S., Marinova, P., Boikovski, S., Grigorov, I. (1982): Fattening performance of

Lambs Fattened to different slaughter weights 3. Caucasian sheep in Bulgaria. BEASTCD, 1973-1987; AN: A747029.

Okubanjo, A. O. and Tenni (1997): Meat characteristics of singed and conventionally dressed chevon carcasses. Journal of Food Science Technology 34(6): 494-497.

Omojola, A. B. and Adesehinwa, A. O. K. (2006): Meat characteristics of scalded, singed and conventionally dressed Rabbit carcasses. World Journal of Zoology 1(1): 24-29.

Omojola, A. B. (2008): Yield and organoleptic characteristics of Suya (an Intermediate moisture meat) prepared from three different muscles of a matured bull African Journal of Biotechnology Vol. 7(13) pp 2254-2257, 4July, 2008

Punch Newspaper, 3rd of July (2017): United Nations Poverty alleviation programme in the North-Eastern part of Nigeria

Rao, V. A, Thulasi, G, and Ruban, S. W. (2009): Meat quality characteristics of

non-descript buffalos as affected by age and sex. World Applied Science Journal; 1058-1065.

SAS (2002): Statistical Analysis System. SAS Stat. version 9 SAS Institute Inc. Garry, NC, USA.

Scherf, B. D. (2000): World watch list for domestic animal diversity. 3rd edition. FAO,

Rome.

Tennin, D. (1994): Improvement of quality and consumer acceptability of goat meat by pre and post rigor processing methods Ph.D Thesis, University of Ibadan.