Evaluation of Un-fasted Pig Stomach Spent Feed as a Substitute in Finishing Pigs Diet
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Insufficient pre-slaughter fasting leaves serious amount of feed-like contents(designated here as un-fasted stomach spent feed, USSF) in the eviscerated pig stomach. This study was intended to evoke economical and environmental seriousness of USSF discharge by estimating its value as pig feed. For finishing pigs feeding trial, three levels(0, 5, and 10%) of USSF were blended with pig feed to prepare control and two treatment diets, respectively. A total of 42(21 males, 21 females) crossbred (Landrace× Yorkshire×Duroc) finishing pigs weighing 81.5±8.0kg were employed to 28d feeding trial and in vivo digestibility trial by Cr2O3 indicator method with 7 males and 7 female pigs per treatment. In vitro total tract digestion of USSF showed 70.5% and 57.6% of DM and OM digestibilities, respectively which were poorer(p<0.05) than those of pig diet. There were no differences in body weight gain, daily feed intake and feed conversion ratio among treatments although 10% USSF substitution exerted relatively poor performance. In vivo apparent digestibilities of diets containing USSF 5% and 10% were lower(p<0.05) than that of 100% pig feed. There were no differences(p>0.05) in dressing percentage and carcass grade among treatments. Results of this study showed that 5% USSF substitution in finishing pigs diet did not exert any disadvantage in terms of production performance and carcass grade. This study implied that un-fasted slaughter causing excessive excretion of USSF should be avoided. If not avoidable, the USSF should not be wasted in abattoir but could be recycled as pig feed.
Abstract
Insufficient pre-slaughter fasting leaves serious amount of feed-like contents(designated here as un-fasted stomach spent feed, USSF) in the eviscerated pig stomach. This study was intended to evoke economical and environmental seriousness of USSF discharge by estimating its value as pig feed. For finishing pigs feeding trial, three levels(0, 5, and 10%) of USSF were blended with pig feed to prepare control and two treatment diets, respectively. A total of 42(21 males, 21 females) crossbred (Landrace× Yorkshire×Duroc) finishing pigs weighing 81.5±8.0kg were employed to 28d feeding trial and in vivo digestibility trial by Cr2O3 indicator method with 7 males and 7 female pigs per treatment. In vitro total tract digestion of USSF showed 70.5% and 57.6% of DM and OM digestibilities, respectively which were poorer(p<0.05) than those of pig diet. There were no differences in body weight gain, daily feed intake and feed conversion ratio among treatments although 10% USSF substitution exerted relatively poor performance. In vivo apparent digestibilities of diets containing USSF 5% and 10% were lower(p<0.05) than that of 100% pig feed. There were no differences(p>0.05) in dressing percentage and carcass grade among treatments. Results of this study showed that 5% USSF substitution in finishing pigs diet did not exert any disadvantage in terms of production performance and carcass grade. This study implied that un-fasted slaughter causing excessive excretion of USSF should be avoided. If not avoidable, the USSF should not be wasted in abattoir but could be recycled as pig feed.
참고문헌 (26)
- AOAC, "Official Methods of Analysis. 15th Ed" (1990), Association of Official Analytical Chemists, Arlington, Virginia
- Evaluating particle size, "Baker, S", KSU Cooperative Extension Service. Manhattan, KS., ~, pp.MF-2051 (1995)
- Bastianelli, D, "Mathematical modeling of digestion and nutrient absorption in pigs", J. Anim. Sci, 74, pp.1873~1887 (1996)
- Bertrand, E, "Heat-induced volatiles and odour-active compounds in a model cheese", Int. Dairy J, 21, pp.806~814 (2011)
- Boisen, S, "Prediction of total tract digestibility of energy in feedstuffs and pig diets by in vitro analyses", Anim. Feed Sci. Technol, 68, pp.277~286 (1997)
- Castillo, M, "Application of 16S rRNA gene-targeted fluorescence in situ hybridization and restriction fragment length polymorphism to study porcine microbiota along the gastrointestinal tract in response to different sources of dietary fibre", FEMS Microbiol. Ecol, 59, pp.138146~ (2007)
- C.-C. Chiang, "Development of a Dynamic System Simulating Pig Gastric Digestion", ASIAN-AUSTRALASIAN JOURNAL OF ANIMAL SCIENCES, 21(10), pp.1522~1528 (2008), 아세아·태평양축산학회
- Davis, D, "Pre-slaughter feeding of pigs: Relationship between amount of stomach contents at slaughter and meat quality", Irish J. Agri. Food Res, 36, pp.111~ (1997)
- DeRouchey, J, "Digestive system of the pig: Anatomy and function", Swine Profitability Conference, KSU (2009)
- Ellis, M, "Nutritional influences on pork quality" (1999), Pork Fact Sheets, National Pork Producers Council. USA
- Fenton, T. W, "An improved procedure for the determination of chromic oxide in feed and feces", Can. J. Anim. Sci, 59, pp.631~634 (1979)
- Guise, H, "Abattoir observations of the weights of stomachs and their contents in pigs slaughtered at known times after their last feed", Br. Vet. J, 151, pp.659~670 (1995)
- Jensen, M. S, "Development of digestive enzyme in pigs with emphasis on lipolytic activity in the stomach and pancreas", J. Anim. Sci, 75, pp.437~445 (1997)
- Johansen, H, "Effects of varying content of soluble dietary fibre from wheat flour and oat milling fractions on gastric emptying in pigs", Br. J. Nutr, 75, pp.339~351 (1996)
- Effect of processing un-fasted stomach spent feed on storage and feed quality, "Lee, J. Y", Project Progress Report. NIAS-RDA, Korea., ~ (2010)
- Myer, R. O, "Evaluation of dehydrated restaurant food waste products as feedstuffs for finishing pig", J. Anim. Sci, 77, pp.685~692 (1999)
- Nattress, F, "Effect of antemortem feeding regimes on bacterial numbers in the stomachs and ceca of pigs", J. Food Prot, 63, pp.1253~1257 (2000)
- Nielsen, E. K, "Effect of cereal type, disintegration method and pelleting on stomach content, weight and ulcers and performance in growing pigs", Livest. Prod. Sci, 66, pp.271~282 (2000)
- 박병철, "Feasibility of Increasing the Slaughter Weight of Finishing Pigs", 한국동물자원과학회지, 53(3), pp.211~222 (2011), 한국동물자원과학회
- Regina, D. C, "Changes in gastric contents in pigs fed a finely ground and pelleted or coarsely ground meal diet", J. Anim. Sci, 77, pp.2721~2729 (1999)
- SAS Institute, "SAS Stat User's Guide. Version 8" (2003), SAS Institute Inc., Cary, NC
- Siggers, R, "Early administration of probiotics alters bacterial colonization and limits diet-induced gut dysfunction and severity of necrotizing enterocolitis in preterm pigs", J. Nutr, 138, pp.1437~1444 (2008)
- Son,H.Y, "Problem of pig slaughter without pre-slaughter fasting-A case survey" (2010), Gangwon Livestock Processing Center, Korea
- Westendorf, M. L, "Recycled cafeteria food waste as a feed for swine: nutrient content digestibility, growth, and meat quality", J. Anim. Sci, 76, pp.2976~2983 (1998)
- Wilfart, A, "Kinetics of enzymatic digestion of feeds as estimated by a stepwise in vitro method", Anim. Feed Sci. Technol, 144, pp.171~183 (2008)
- Zebrowska, T, "Studies on gastric digestion of protein and carbohydrate, gastric secretion and exocrine pancreatic secretion in the growing pig", Br. J. Nutr, 49, pp.401~410 (1983)