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Preliminary Evaluation of Slaughter Value and Carcass Composition of Indigenous Sheep and Goats from Traditional Production System in Tanzania

  • Shija, Dismas S. (Sokoine University of Agriculture, Department of Animal Science and Production) ;
  • Mtenga, Louis A. (Sokoine University of Agriculture, Department of Animal Science and Production) ;
  • Kimambo, Abiliza E. (Sokoine University of Agriculture, Department of Animal Science and Production) ;
  • Laswai, Germana H. (Sokoine University of Agriculture, Department of Animal Science and Production) ;
  • Mushi, Daniel E. (Sokoine University of Agriculture, Department of Animal Science and Production) ;
  • Mgheni, Dynes M. (Sokoine University of Agriculture, Department of Animal Science and Production) ;
  • Mwilawa, Angello J. (National Livestock Research Institute) ;
  • Shirima, Eligy J.M. (Ministry of Livestock Development and Fisheries) ;
  • Safari, John G. (Institute of Rural Development and Planning)
  • Received : 2012.08.10
  • Accepted : 2012.09.10
  • Published : 2013.01.01

Abstract

The aim of the pilot study was to evaluate slaughter characteristics and carcass composition of indigenous long fat tailed sheep and Small East African goats purchased from the auction markets slaughtered at 1.5 to 2 yrs of age and 20 kg to 25 kg live weight. The animals were slaughtered according to halal standard procedures. The left half carcasses were jointed into eight wholesale joints, and dissected into muscles, fat and bone, which were weighed separately. Sheep had greater (p<0.05) slaughter BW (22.29 kg vs 20.50 kg) and empty BW (20.17 kg vs 18.67 kg) than goats (p<0.05). Dressing percentages were lower (p<0.001) in sheep than goats when carcass weight was expressed as percentage of slaughter BW (42.31% and 47.15%) and empty BW (46.75% and 51.79%). Sheep carcasses had lower (p<0.001) proportion (66.18% vs 71.64%) of muscles and higher (p<0.001) proportion of fat (7.41% vs 3.44%) than goat carcasses. Sheep had proportionally lighter (p<0.001) shoulder (18.89% vs 22.68%) and heavier (p<0.05) proportion of chump (7.916% vs 6.76%) and main rib (8.12% vs 7.07%). Sheep had more (p<0.001) muscles in the leg (28.83% vs 27.08%) and main rib (7.62% vs 6.36%) than goats. Sheep had less (p<0.001) muscles (20.28% vs 23.56%) in shoulder joints when expressed as percentage of total muscle of carcasses. It is concluded that there are differences in sheep and goat both in terms of carcass and joint yields and composition. The present study also implies that there is need to consider setting different meat cuts and prices for these cuts when one takes into account the differences in muscle distribution within joints in sheep and goats.

Keywords

References

  1. Abegaz, S. and K. Awgichew. 2009. Estimation of weight and age of sheep and goats. In: ESGPIP (Ethiopia Sheep and Goat Productivity Improvement Program) Technical Bulletin No.23. (Ed. Alemu Yami, T. A. Gipson and R. C. Merkel).
  2. Atti, N., H. Rouissi and M. Mahouachi. 2006. The effect of spineless cactus (Opuntia ficus-indica f. inermis) supplementation on growth, carcass, meat quality and fatty acid composition of male goat kids. Meat Sci. 73:229-235. https://doi.org/10.1016/j.meatsci.2005.11.018
  3. Babiker, S. A., I. A. El Khider and S. A. Shafie. 1990. Chemical composition and quality attributes of goat meat and lamb. Meat Sci. 28:273-277. https://doi.org/10.1016/0309-1740(90)90041-4
  4. Berg, R. T. and R. M. Butterfield. 1976. New Concepts of Cattle Growth, Sydney University Press, Sydney, Australia, p. 240.
  5. Bhatta, R., S. K. Sankhyan, A. K. Shinde and D. L. Verma. 2001. Seasonal changes in diet selectivity and grazing behaviour of goats on semiarid rangeland. Indian J. Anim. Sci. 71:62-65.
  6. Bonvillani, A., F. Pena, G. de Gea, G. Gomez, A. Petryna and J. Perea. 2010. Carcass characteristics of Criollo Cordobés kid goats under an extensive management system: Effects of gender and live weight at slaughter. Meat Sci. 86:651-659. https://doi.org/10.1016/j.meatsci.2010.05.018
  7. Calheiros, F. and A. Neves. 1968. Rendimentos ponderais no Borrego Merino Precoce. Carcaça e $5^{\circ}$ quarto. Separata Boletim Pecuario XXXVI:117-126. (In Portuguese)
  8. Cameron, M. R., J. Luo, T. Sahlu, S. P. Hart, S. W. Coleman and A. L. Goetsch. 2001. Growth and slaughter traits of $Boer{\times}Spanish,\;Boer{\times}Angora $and Spanish goats consuming a concentrate-based diet. J. Anim Sci. 79:1423-1430.
  9. Colomer-Rocher, F., A. H. Kirton, G. J. K. Mercer and D. M. Duganzich. 1992. Carcass composition of New Zealand Saanen goats slaughtered at different weights. Small Rumin. Res. 7:161-173. https://doi.org/10.1016/0921-4488(92)90205-I
  10. Dhanda, J. S., D. G. Taylor, J. E. McCosker and P. J. Murray. 1999. The influence of goat genotype on the production of Capretto and Chevon carcasses. 1. Growth and carcass characteristics. Meat Sci. 52:355-361. https://doi.org/10.1016/S0309-1740(99)00016-9
  11. El Khidir, I. A., S. A. Babiker and S. A. Shafie. 1998. Comparative feedlot performance and carcass characteristics of Sudanese desert sheep and goats. Small Rumin. Res. 30:147-151. https://doi.org/10.1016/S0921-4488(98)00097-2
  12. Gaili, E. S. and A. E. Ali. 1985. Meat from Sudan desert sheep and goats. Part 2. Composition of the muscular and fatty tissues. Meat Sci. 13:229-236. https://doi.org/10.1016/0309-1740(85)90092-0
  13. Hadjipanayiotou, M. and A. Koumas. 1994. Carcass characteristics of equally mature Chios lambs and Damascus kids. Small Rumin. Res. 13:71-77. https://doi.org/10.1016/0921-4488(94)90033-7
  14. Hango, A., L. A. Mtenga, G. C. Kifaro, J. Safari, D. E. Mushi and V. R. M. Muhikambele. 2007. A study on growth performance and carcass characteristics of Small East African goats under different feeding regimes. Livest. Res. Rural Dev. Volume 19, Article #130.
  15. Kadim, I. T., O. Mahgoub, D. S. Al-Ajmi, R. S. Al-Maqbaly, N. M. Al-Saqri and A. Ritchie. 2003. An evaluation of the growth, carcass and meat quality characteristics of Omani goat breeds. Meat Sci. 66:203-210.
  16. Kerth, C. R., K. W. Braden, R. Cox, L. K. Kerth and J. Rankins. 2007. Carcass, sensory, fat colour and consumer acceptance characteristics of Angus Cross steers finished on ryegrass (Lolium multiflorum) forage or on a high concentrate diet. Meat Sci. 75:324-331. https://doi.org/10.1016/j.meatsci.2006.07.019
  17. Lee, J. H., G. Kannan, K. R. Eega, B. Kouakou and W. R. Getz. 2008. Nutritional and quality characteristics of meat from goats and lambs finished under identical dietary regime. Small Rumin. Res.74:255-259. https://doi.org/10.1016/j.smallrumres.2007.05.004
  18. Mahgoub, O. and G. A. Lodge. 1998. A comparative study on growth, body composition and carcass tissue distribution in Omani sheep and goats. J. Agric. Sci. (Camb.) 131:329-339. https://doi.org/10.1017/S0021859698005887
  19. Mahgoub, O. and C. D. Lu. 1998. Growth, body composition and carcass tissue distribution in goats of large and small sizes. Small Rumin. Res. 27:267-278. https://doi.org/10.1016/S0921-4488(97)00055-2
  20. Miller, M. F., M. A. Carr, C. B. Ramsey, K. L. Crockett and L. C. Hoover. 2001. Consumer thresholds for establishing the value of beef tenderness. J. Anim. Sci. 79:3062-3068.
  21. Msanga, Y. N. 2009. Potential of meat industry in Tanzania. Ministry of Livestock Development and Fisheries, Tanzania.
  22. Mushi, D. E. 2004. Studies on marketing of meat goats and carcass composition - a case study of Gairo auction markets. MSc. Dissertation, Sokoine University of Agriculture, Morogoro, Tanzania.
  23. Mushi, D. E., J. Safari, L. A. Mtenga, G. C. Kifaro and L. O. Eik. 2009. Effects of concentrate levels on fattening performance, carcass and meat quality attributes of Small East $African{\times}Norwegian $ crossbred goats fed low quality grass hay. Livest. Sci. 124:148-155. https://doi.org/10.1016/j.livsci.2009.01.012
  24. Mwilawa, A. J., A. E. Kimambo, L. A. Mtenga, J. Madsen, T. Hvelplund, M. Weisbjerg, G. H. Laswai, D. M. Mgheni and M. Christensen. 2007. Evaluation of breed and diet for carcass characteristics and meat quality of beef cattle. Proceedings of the 2nd TSAP/TVA Joint International Conference held at AICC from 29th November - 1st December 2007, Arusha, Tanzania.
  25. Naude, R. T. and H. S. Hofmeyr. 1981. Meat production. In: Goat Production (Ed. C. Gall) (pp. 285-307). London: Academic press.
  26. Owen, J. E., G. A. Norman, C. A. Philbrooks and N. S. D. Jones. 1978. Studies on the meat production characteristics of Botswana goats and sheep. III. Carcass tissue composition and distribution. Meat Sci. 2:59-74. https://doi.org/10.1016/0309-1740(78)90022-0
  27. Riley, R. R., J. W. Savell, M. Shelton and G. C. Smith. 1989. Carcass and offal yields of sheep and goats as influenced by market class and breed. Small Rumin. Res. 2:265-272. https://doi.org/10.1016/0921-4488(89)90006-0
  28. Safari, J. G., D. E. Mushi, L. A. Mtenga, G. C. Kifaro and L. O. Eik. 2009. Effects of concentrate supplementation on carcass and meat quality attributes of feedlot finished Small East African goats. Livest. Sci. 125:266-274. https://doi.org/10.1016/j.livsci.2009.05.007
  29. Safari, J. G., D. E. Mushi, L. A. Mtenga, G. C. Kifaro and L. O. Eik. 2011. Growth, carcass yield and meat quality attributes of Red Maasai sheep fed wheat straw-based diets. Trop. Anim. Health Prod. 43:89-97. https://doi.org/10.1007/s11250-010-9658-3
  30. Santos, V. A. C., S. R. Silva and J. M. T. Azevedo. 2008. Carcass composition and meat quality of equally mature kids and lambs. J. Anim. Sci. 86:1943-1950. https://doi.org/10.2527/jas.2007-0780
  31. SAS. 2000. Statistical analysis system, User's Guide, Version 8.2. SAS Institute, INC Carry. NC, USA.
  32. Sen, A. R., A. Santra and S. A. Karim. 2004. Carcass yield, composition and meat quality attributes of sheep and goat under semiarid conditions. Meat Sci. 66:757-763. https://doi.org/10.1016/S0309-1740(03)00035-4
  33. Titi, H. H., R. O. Dmour and A. Y. Abdullah. 2008. Growth performance and carcass characteristics of Awassi lambs and Shami goat kids fed yeast culture in their finishing diet. Anim. Feed Sci. Technol. 142:33-43. https://doi.org/10.1016/j.anifeedsci.2007.06.034
  34. Tshabalala, P. A., P. E. Strydom, E. C. Webb and H. L. De Kock. 2003. Meat quality of designated South African indigenous goat and sheep breeds. Meat Sci. 65:563-570. https://doi.org/10.1016/S0309-1740(02)00249-8
  35. Voges, K. L., C. L. Mason, J. C. Brooks, R. J. Delmore, D. B. Griffin and D. S. Hale. 2007. National beef tenderness survey -2006: Assessment of Warner-Bratzler shear and sensory panel ratings for beef from US retail and foodservice establishments. Meat Sci. 77:357-364. https://doi.org/10.1016/j.meatsci.2007.03.024

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