Effectiveness of different corn dried distillers grains with solubles feeding strategies and increasing the time intervals between the second Improvest dose and slaughter of immunologically castrated pigs on belly and pork fat quality

被引:12
|
作者
Harris, E. K. [1 ,4 ]
Mellencamp, M. A. [2 ]
Johnston, L. J. [1 ,3 ]
Cox, R. B. [1 ]
Shurson, G. C. [1 ]
机构
[1] Univ Minnesota, Dept Anim Sci, 335d Anim Sci Vet Med Bldg,1988 Fitch Ave, St Paul, MN 55108 USA
[2] Zoetis, Florham Pk, NJ 07940 USA
[3] Univ Minnesota, West Cent Res & Outreach Ctr, Morris, MN 56267 USA
[4] Provimi North Amer, 10 Nutr Way, Brookville, OH 45309 USA
关键词
Belly quality; Dried distillers grains with solubles; Feeding strategy; Growing-finishing pigs; Immunological castration; Pork fat quality; GROWING-FINISHING PIGS; SUBCUTANEOUS ADIPOSE-TISSUE; BACON SLICING YIELDS; GROWTH-PERFORMANCE; CARCASS CHARACTERISTICS; ACID-COMPOSITION; IODINE VALUE; MEAT QUALITY; BOAR TAINT; DIETS;
D O I
10.1016/j.meatsci.2017.08.025
中图分类号
TS2 [食品工业];
学科分类号
0832 ;
摘要
Effects of dried distillers grains with solubles (DDGS) feeding strategies (a corn-soybean meal (CS) fed continously; CS + 40% DDGS fed continously; CS + 40, 30, 20, or 10% DDGS in 4 phases, respectively; or CS + 40% DDGS in phases 1 to 3 and CS in phase 4 before slaughter) on belly and pork fat quality of immunologically castrated (n = 192) pigs were evaluated. All pigs received the first Improvest dose at 11 week of age, and the second dose at 9, 7, or 5 week before slaughter at 24 week of age. Increasing the time interval of the second Improvest dose before slaughter reduced W in all fat depots and increased belly thickness. Gradually decreasing dietary DDGS and DDGS withdrawal feeding strategies reduced IV in all fat depots. Calculated IV were greater using the Meadus et al. (2010) equation compared with using the AOCS (1998) equation because it includes more long-chain unsaturated fatty acids.
引用
收藏
页码:62 / 73
页数:12
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