Use of Watermelon (Citrullus lanatus) Seeds in Diets for Fattening Lambs
This study was conducted to evaluate the effect of feeding diets with different levels of whole watermelon seeds on growth performance, carcass characteristics and meat quality of lambs. Thirty 6-month old lambs of Sudan desert sheep with an average weight of 33.8 Kg were used in this study. They were randomly divided into three groups (n=10) and assigned into three treatment diets with different levels of watermelon seeds (WS) for 52 days. The diets were WS0, WS10, or WS20, which contained 0% (control), 10% and 20% watermelon seeds, respectively. The results showed that final live weight, daily weight gain and total weight gain, hot carcass weight, cold carcass weight and chiller shrinkage were higher (P < 0.05) in WS0 and WS20 groups compared to WS10 group. Feed conversion ratio was higher (P < 0.05) in sheep fed WS10 compared to sheep fed WS0. Treatment diets did not affect carcass composition (muscle, fat and bone) and meat chemical composition. However, water-holding capacity and cooking loss were significantly different among the treatment groups, where lambs fed on WS10 had inferior water-holding capacity and higher cooking loss. Treatment diets had no significant effect on meat lightness (L*); but redness (a*) and yellowness (b*) values were significantly higher in WS0 group compared to WS10 and WS20 groups. Shear force value was lower (P < 0.05) in WS10 compared to WS0 and WS20. It was concluded that inclusion of whole watermelon seeds up to 20% in lamb diets supported sufficient feedlot performance, carcass characteristics and meat quality.
AOAC, 2007. Official Methods of Analysis, edited by K. Herlick, Association of Official Analytical Chemists, Arlington, Va, USA, 15th edition.
Babiker, S.A., El Khider, I.A., Shafie, S.A., 1990. Chemical composition and quality attributes of goat meat and lamb. Meat science (28), 273-277.
Beshir, A.A., Babiker, S.A., Shambat, S., 2009a. Digestibility of Sudanese Desert lambs fed Diets of Different Proportions of Watermelon (Citrullus lanatus) Seeds Cake. Research Journal of Animal and Veterinary Sciences (4), 30-34.
Beshir, A.A., Yagoub, Y.M., Babiker, S.A., 2009b. Performance of Sudanese desert lambs fed graded levels of water melon (Citrullus Lanatus) seed cake instead of groundnut cake. Pakistan Journal of Nutrition (8), 525-529.
Corazzin, M., Del Bianco, S., Bovolenta, S., Piasentier, E., 2019. Carcass Characteristics and Meat Quality of Sheep and Goat. More than Beef, Pork and Chicken–The Production, Processing, and Quality Traits of Other Sources of Meat for Human Diet, Springer, pp. 119-165.
El-Adawy, T.A., Taha, K.M., 2001. Characteristics and composition of different seed oils and flours. Food Chemistry (74), 47-54.
El Hassan, G., Abuelfatah, K., Babiker, S., Alsiddig, M., 2017. Feedlot Performance And Carcass Characteristics Of Some Sudan Desert Sheep Ecotypes And Their Crosses. Int. J. Agric. Sc & Vet. Med, 25-32.
El Khidir, I., Babiker, S., Shafie, S., 1998. Comparative feedlot performance and carcass characteristics of Sudanese desert sheep and goats. Small ruminant research (30), 147-151.
Eldin, H.A.T., Babiker, I.A., El Khidir, O.A., 2011. Feedlot performance of Sudanese desert lambs fed with mash or pelleted diet of varying energy levels. Journal of the Saudi Society of Agricultural Sciences (10), 77-79.
Gabani, G.S., 1999. Use of watermelon (citrulus lanatus) by-product in Sudan deseret sheep finishing diets. University of Khartoum, Sudan.
Gaili, E.S.E., 1979. Effect of breed-type on carcass weight and composition in sheep. Tropical animal health production (11), 191-198.
Gardner, G., Williams, A., Ball, A., Jacob, R., Refshauge, G., Edwards, J.H., Behrendt, R., Pethick, D.J.., 2015. Carcase weight and dressing percentage are increased using Australian Sheep Breeding Values for increased weight and muscling and reduced fat depth. Meat Science (99), 89-98.
Greer, G., Jones, S.J.M.s., 1997. Quality and bacteriological consequences of beef carcass spray-chilling: Effects of spray duration and boxed beef storage temperature. (45), 61-73.
Honikel, K.O., 1998. Reference methods for the assessment of physical characteristics of meat. Meat science (49), 447-457.
Hunt, M., 1980. Meat color measurements. Proceedings Annual Reciprocal Meat Conference.
Kamel, B.S., Dawson, H., Kakuda, Y., 1985. Characteristics and composition of melon and grape seed oils and cakes. Journal of the American Oil Chemists’ Society (62), 881-883.
Mancini, R.A., Hunt, M.C., 2005. Current research in meat color. Meat science (71), 100-121.
MARF., 2017. Ministry of Animals Resources and Fishers, Information Center. Khartoum, Sudan.
Mateo, J., Caro, I., Carballo, D., Gutiérrez-Méndez, N., Arranz, J., Gutiérrez-Gil, B.J.a., 2018. Carcass and meat quality characteristics of Churra and Assaf suckling lambs. Animal (12), 1093-1101.
MLC 1977. Cutting and preparing lamb and pork. Meat and Livestock Commission. Technical Bulletin 24 Queenway House. Bletchley. Milton Keynes, U. K.
Moaddabdoost Baboli, Z., Safe Kordi, A.A., 2010. Characteristics and composition of watermelon seed oil and solvent extraction parameters effects. Journal of the American Oil Chemists' Society (87), 667-671.
Preston, T. R. and Willis, M. B. Intensive Beef Production.2nd ed. Pergamon: Pess Ltd. England, 1974.
Smith, G., Carpenter, Z.J., 1973. Postmortem shrinkage of lamb carcasses. Journal of Animal Science; (36), 862-867.
Suliman, G., Babiker, S., 2007. Effect of diet-protein source on lamb fattening. Research Journal of Agriculture and Biological Sciences (3), 403-408.
- There are currently no refbacks.
U. of K. J. Vet. Med. Anim. Prod.