Effects of Elevated Crude Glycerin Concentrations on Feedlot Performance and Carcass Characteristics in Finishing Steers
2
조회
0
다운로드
1
인용
0
참고문헌
키워드
초록
Twenty crossbred steers (400±40.1 kg of initial body weight) were used to assess the effects of a dietary supplementation with crude glycerin (CG) as a substitute for corn grain on performance, carcass traits, and meat quality. Four isocaloric and isonitrogenous diets were offered to the experimental animals (5 steers per treatment) for 121 days using randomized complete block design. The steers individually received dietary treatments containing 0%, 7%, 14%, and 21% of CG (88.91% pure) on a dry matter (DM) basis. The diets were offered ad libitum as total mixed rations twice daily. Weight gain and carcass traits were determined. At the end of the experimental period, the harvest data and carcass characteristics of the steers were recorded, and meat quality was determined. No significant effect of CG inclusion was observed in any of the growth performance and carcass characteristics traits studied. Also, there were no apparent effects of diets (p>0.05) on meat quality (pH, water holding capacity, drip losses, and cooking losses). The study concluded that CG could be used as a substitute for corn grain up to the level of approximately 21% of DM in the diets of finishing steers.
Abstract
Twenty crossbred steers (400±40.1 kg of initial body weight) were used to assess the effects of a dietary supplementation with crude glycerin (CG) as a substitute for corn grain on performance, carcass traits, and meat quality. Four isocaloric and isonitrogenous diets were offered to the experimental animals (5 steers per treatment) for 121 days using randomized complete block design. The steers individually received dietary treatments containing 0%, 7%, 14%, and 21% of CG (88.91% pure) on a dry matter (DM) basis. The diets were offered ad libitum as total mixed rations twice daily. Weight gain and carcass traits were determined. At the end of the experimental period, the harvest data and carcass characteristics of the steers were recorded, and meat quality was determined. No significant effect of CG inclusion was observed in any of the growth performance and carcass characteristics traits studied. Also, there were no apparent effects of diets (p>0.05) on meat quality (pH, water holding capacity, drip losses, and cooking losses). The study concluded that CG could be used as a substitute for corn grain up to the level of approximately 21% of DM in the diets of finishing steers.
참고문헌 (30)
- AOAC, "Official Methods of Analysis", Official Analytical Chemist, ~ (1995)
- Avila-Stagno, J., "Effects of increasing concentrations of glycerol in concentrate diets on nutrient digestibility, methane emissions, growth, fatty acid profiles, and carcass traits of lambs", J. Anim. Sci, 91, pp.829~837 (2013)
- Bartoñ, L., "Effects of long-term feeding of crude glycerine on performance, carcass traits, meat quality, and blood and rumen metabolites of finishing bulls", Livest. Sci, 155, pp.53~59 (2013)
- Chanjula, P., "Effects of feeding crude glycerin on feedlot performance and carcass characteristics in finishing goats", Small Rumin. Res, 123, pp.95~102 (2015)
- Donkin, S. S, "Feeding value of glycerol as a replacement for corn grain in rations fed to lactating dairy cows", J. Dairy Sci, 92, pp.5111~5119 (2009)
- Egea, M, "Crude glycerine inclusion in Limousin bull diets: Animal performance, carcass characteristics and meat quality", Meat Sci, 98, pp.673~678 (2014)
- Françozo, M. C., "Growth performance, carcass characteristics and meat quality of finishing bulls fed crude glycerine-supplemented diets", Braz. Arch. Biol. Technol, 56, pp.327~336 (2013)
- Gomes, M. A. B, "Performance and carcass characteristics of lambs fed on diets supplemented with glycerin from biodiesel production", Rev. Bras. Zootec, 40, pp.2211~2219 (2011)
- Gunn, P. J., "Effects of crude glycerin on performance and carcass characteristics of finishing wether lambs", J. Anim. Sci, 88, pp.1771~1776 (2010)
- Gunn, P. J., "Effects of elevated crude glycerin concentrations on feedlot performance, carcass characteristics, and serum metabolite and hormone concentrations in finishing ewe and wether lambs", Prof. Anim. Sci, 26, pp.298~306 (2010)
- Hess, B. W., "Using glycerin as a supplement for forage-fed ruminants", J. Anim. Sci, 86(ESuppl. 2), pp.392~ (2008)
- Krehbiel, C. R., "Ruminal and physiological metabolism of glycerin", J. Anim. Sci, 86(E-Suppl. 2), pp.392~ (2008)
- Lammers, P. J, "Digestible and metabolizable energy of crude glycerol for growing pigs", J. Anim. Sci, 86, pp.602~608 (2008)
- Mach, N., "Effects of crude glycerin supplementation on performance and meat quality of Holstein bulls fed high-concentrate diets", J. Anim. Sci, 87, pp.632~638 (2009)
- Mancini, R. A., "Current research in meat color", Meat Sci, 71, pp.100~121 (2005)
- Miller, M., "Consumer thresholds for establishing the value of beef tenderness", J. Anim. Sci, 79, pp.3062~3068 (2001)
- Mourot, J., "Nutritional and physiological effects of dietary glycerol in the growing pig. Consequences on fatty tissues and post mortem muscular parameters", Livest. Prod. Sci, 38, pp.237~244 (1994)
- NRC, "Nutrient Requirements of Beef Cattle" (2000), Acad. Press
- Oba, M, "Intraruminal infusion of propionate alters feeding behavior and decreases energy intake of lactating dairy cows", J. Nutr, 133, pp.1094~1099 (2003)
- Paggi, R. A., "In vitro ruminal digestibility of oat hay and cellulolytic activity in the presence of increasing concentrations of short-chain acids and glycerol", J. Agric. Sci, 142, pp.89~96 (2004)
- Parsons, G. L, "Performance and carcass traits of finishing heifers fed crude glycerin", J. Anim. Sci, 87, pp.653~657 (2009)
- Pearce, K. L, "Water distribution and mobility in meat during the conversion of muscle to meat and ageing and the impacts on fresh meat quality attributes - A review", Meat Sci, 89, pp.111~124 (2011)
- Pyatt, A., "Effect of crude glycerin in finishing cattle diets", J. Anim. Sci, 85(Suppl. 1), pp.530~ (2007)
- Roger, V, "Effects of glycerol on the growth, adhesion, and cellulolytic activity of ruminal cellulolytic bacteria and anaerobic fungi", Curr. Microbiol, 25, pp.197~201 (1992)
- Schieck, S. J, "Use of crude glycerol, a biodiesel coproduct, in diets for lactating sows", J. Anim. Sci, 88, pp.2648~2656 (2010)
- Smith, G. C., "Meat Evaluation Handbook" (2001), American Meat Science Association
- Trabue, S., "Ruminal fermentation of propylene glycol and glycerol", J. Agric. Food Chem, 55, pp.7043~7051 (2007)
- Van Soest, P. J, "Methods for dietary fiber, neutral detergent fiber, and nonstarch polysaccharides in relation to animal nutrition", J. Dairy Sci, 74, pp.3583~3597 (1991)
- Vergara, H., "Conservation of Cervus elaphus meat in modified atmospheres", Meat Sci, 65, pp.779~783 (2003)
- Ziegler, J. H, "The Meat We Eat" (1977), The Interstate Printers