EFFECT OF CASTRATION ON SOME PHYSICO-CHEMICAL CHARACTERISTICS AND HISTOSTRUCTURE OF RABBIT MUSCLE
Keywords:
castration, pH, rabbits, skeletal muscle, water holding capacity (WHC)Abstract
This study was conducted with 22 male New Zealand white rabbits. The purpose of the study was to investigate the effect of castration and Immunoprot (a combination of two antioxidants – d-limonene and Vitamin E) treatment on some physico-chemical characteristics and morphological features of skeletal
muscles. The rabbits were divided into 3 groups: I group – castrated and treated with Immunoprotect (GrCI); II group – only castrated (GrC) and III group – non-castrated (GrNC). The experimental period lasted 2 months. m. Longissimus lumborum and m. Semimembranosus were used for analyses. In both muscles castrated rabbits (GrC) exhibited significantly higher levels of lipids, pH values and water holding capacity (WHC) than other two groups (CrCI and GrNC). There were no group differences in the muscle content of proteins, dry matter and mineral substances. The castration of male rabbits two months before slaughtering lead to increased fat deposition but this has no marked effect on meat quality. The treatment with Immunoprotect protect lipid accumulation
in muscles which could be in part due to the combined effect of two antioxidants – Vitamin E and d-limonene.
References
Захариев, 3., А. Пинкас, 1997. Методика за провеждане на опити, кланичен анализ и качествена оценка на месото при едър рогат добитък. София.
Наредба № 22 за намаляване до минимум на страданията на животните но време на клане или умъртвяване, обн. ДВ, бр. 42 от 23.05.2006г.
Петров, Й., 1982. Видови и породни особености в микроструктурата на скелетната мускулатура през постнаталната онтогенеза на селскостопанските животни. Дисертация за присъждане на научна степен „Доктор на биологичните науки”, Стара Загора, стр. 81.
АОСА, 2002. Official Methods of Analyses, 14th Rew. Ed., Washington, DC, USA.
Blasco, A., Q. М. Piles, 1990. Muscular рН of the rabbit. Ann. Zootech. 39.133-136.
Blasco, A., J. Ouhayoun, G. Masoero, 1992. Status of rabbit meat and carcass: Criteria and terminology. Options Mediterraneennes Serie Seminaires. n 17. 105-120.
Beatriz, A. Q., P. Hernandez, A. Blasco, 2006.Comparison of texture and biochemical characteristical of three rabbit lines selected for litter size or growth rate. Meat Sci.. 73. 687- 692.
Cobos, A., L. De La Hoz, M. I. Camlero, J. A. Ordonez, 1995. Sugar-beet pulps as alternative ingredient of barley in rabbit diets and its effect on rabbit meat. Meat Sci.. 39. 113- 121.
Corino, C., G. Pastorelli, L. Pantaleo, G. Orani, G. Salvatori, 1999. Improvement of color and lipid stability ff rabbit meat by dietarv supplemen
tation with vitamin L. Meat Sci., 52. 285- 289.
Dalle Zottc, A., J. Ouhayoun, R. Parigi, G. Xiccato, 1996. Effect of age. diet and sex on muscular energy metabolism and related physicochemical traits in the rabbit. Meat Sci., 43. 15-24.
Dalle Zotte, А., 2002. Perception of rabbit quality and factors influencing the rabbit carcass and meat quality. Review . Liv. Prod. Sci., 75. 11-32.
Garcia, G., J. Galvez. ,1. De Bias, 1993. Effect of substitution of sugar-beet pulp for barley in diets for finishing rabbits on growth performance and energy and nitrogen efficiency. J. Anim. Sci., 71. 1823-1830.
Hernandez, P. and F. Gonder, 2006. Rabbit meat quality. In: Maertens I... Coudert. P. (Eds.). Recent Advances in Rabbit Sciences. II.VO. Merelbeke, Belgium, 269-290.
Hulot, F. and Ouhayoun, 1999. Muscular pll and related traits in rabbis: a review. World Rabbit Sci., 7. 15-36.
Lawrie, R. A., 1991. Meat science. 5th ed.. pp 56-60. 188 and 206. Pergamon Press. New York. NY.
Oteku, L., J. Igene, 2006. Effect of diet types and slaughter ages on carcass characteristics of the domestic rabbits in humid Southern Nigeria. Pakistan Journal of nutrition. 5. (1). 1-5.
Pla, M., P. Hernandez, A. Blasco, 1996. Carcass composition and meat characteristics of two rabbit breeds of different degrees of maturity. Meat Sci.. 44. 85-92.
Pozahariskaja, L., M. Kogan, V. Rindina and E. Frejidilin, 1964. Physicochemical and bacteriological control in meat industry. Moscow. Food industry. 285.
Tumova, F., I. Zita, L. Stoic, 2006. Carcass quality in restricted and libitum fed rabbit. Czech. J. Anim. Sci., 51, (5) 214-219.
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