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Effects of Dietary Silkworm Droppings on Quality Characteristics of Pork Loin  

Lee Jeong-Ill (Advanced Swine Research Institue, Gyeongnam Province)
Lee Jung-Dong (Livestock Division, Gyeongsangnamdo Provincial Office)
Ha Young-Joo (Advanced Swine Research Institue, Gyeongnam Province)
Jung Jae-Doo (Advanced Swine Research Institue, Gyeongnam Province)
Lee Jin-Woo (Advanced Swine Research Institue, Gyeongnam Province)
Lee Jae-Ryung (Advanced Swine Research Institue, Gyeongnam Province)
Kwack Suk-chun (Advanced Swine Research Institue, Gyeongnam Province)
Kim Doo-Hwan (Regional Animal Industry Research Center, Jinju National University)
Do Chang-Hee (Advanced Swine Research Institue, Gyeongnam Province)
Publication Information
Food Science of Animal Resources / v.25, no.2, 2005 , pp. 175-188 More about this Journal
Abstract
This study investigated the effects of silkworm droppings (SWD) added diet feeding on quality characteristics of pork loin meat Pigs were divided into 7 treatment groups (10 pigs/group) and subjected to one of seven treatment diets $(0,\;1\%,\;2\%\;and\; 3\%\;SWD\;for\;4 weeks,\;1\%\;2\%\;3\%$ SWD for 8 weeks, SWD diets; total fed diets) before slaughter. Pork loin were collected from the animals (110kg body weight) slaughtered at a commercial slaughterhouse. Pork loin meat were packaged aerobically and then stored at $4^{\circ}C$ for 2, 5, 8, or 12 days. Samples were analyzed for general composition, texture characteristics and physico-chemical properties. pH value was not significantly different between the control and SWD treatment groups. pH of control and SWD treatment groups were increased as the storage period passed General composition, cooking loss and texture was not significantly different between the control and SWD treatment groups. WHC of SWD treatment group was higher than that of control group. WHC of control and SWD treatment groups were significantly decreased as the storage period passed (p<0.05). Meat and fat color (CIE $L^{\ast}$, $a^{\ast}$, $b^{\ast}$) were no significant differences between the control and SWD treatment groups. $L^{\ast}$ and $b^{\ast}$ value of meat color were decreased as the storage period passed There was a not significantly difference in shear force value among control and SWD treatment groups. Shear force value was decreased significantly during storage in all treatment groups. In all results, dietary SWD-supplementation was not affected in general components, texture characteristics and physico-chemical properties. It is suggested that dietary SWD-supplementation could produce of high quality pork.
Keywords
silkworm droppings; pork quality; physico-chemical properties;
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