Effects of Different Dietary Crude Fiber Levels on the Growth Performance of Finishing Su-Shan Pigs

The utilization of dietary crude fiber in different breed pigs is not the same. Su-shan pigs are a new breed formed by crossing Taihu pigs and Yorkshire pigs. In order to understand the resistance of Su-shan pigs to dietary crude fiber, 150 Su-shan pigs with 60 kg of average body weight and similar body conditions were allocated to three groups randomly, and there are 50 pigs in each group. The percentages of dietary crude fiber were 8.35%, 9.10%, and 11.39%, respectively. At the end of the experiment, 15 pigs randomly selected from each group were slaughtered. The results showed as follows: average daily gain of the 9.10% group was higher than that of the 8.35% group and the 11.39% group; there was a significant difference between the 9.10% group and the 8.35% group (p < 0.05. Levels of urea nitrogen, total cholesterol and high density lipoprotein in the 9.10% group were significantly higher than those in the 8.35% group and the 11.39% group (p < 0.05). Ratios of meat to fat in the 9.10% group and the 11.39% group were significantly higher than that in the 8.35% group (p < 0.05). Lean percentage of 9.10% group was higher than that of 8.35% group and 11.39% group, but there was no significant difference in three groups (p > 0.05). The weight of small intestine and large intestine in the 11.39% group was higher than that in the 8.35% group, and the 9.10% group and the difference reached a significant level (p < 0.05). In conclusion, increasing dietary crude fiber properly could reduce fat percentage, and improve the ratio of meat to fat of finishing Su-shan pigs. The digestion and metabolism of dietary crude fiber promoted the development of stomach and intestine of finishing Su-shan pig.





References:
[1] Ruan Weibin. The role of crude fiber in pig diet (J). Swine, 2000, 4:11.
[2] Zhang Lingqing, Guo Zhiming, Tian Zongxiang. Study on crude fiber digestibility in pig diets (J). Journal of Animal Husbandry and Veterinary Medicine, 2013, 32(03): 63-64.
[3] Huang Jinping, Yu Xuehong, Gong Huachun, et al. Effect of crude fiber in diets on physiological function of pigs (J). Journal of Pranaporta Sinica, 2009, 2: 52-53.
[4] Wang Yanping, Wang Cheng, Zhang Yin, et al. Effects of dietary crude fiber levels and pig breeds on nitrogen metabolism (J). Heilongjiang Animal Husbandry and Veterinary Medicine, 2011, 21:57-59.
[5] Wang Wentao. Effects of different crude fiber feeding levels on blood biochemical indexes of Min pigs and Large White pigs (J). Heilongjiang Animal Husbandry and Veterinary Medicine, 2015, 12:42-43.
[6] Li Jiangling, Chen Xiaohui, Liu Rui, et al. Study on the resistance to crude feeding and its biochemical mechanism of Tibetan pigs(J). Chinese Pig Industry, 2015, 2:70-72.
[7] Zhu Mingxia, Liu Wenqiang, Zhang Gaozhen. Study on the resistance to crude feeding of local black pigs in Luxi (J). Feed Research, 2012, 7:64-66.
[8] Yan Ping, Liu Yuqin, Sun Yukai. Research on the regulation of crude fiber to pig nutrition (J). Heilongjiang Animal Husbandry and Veterinary Medicine, 2004, 12:65-66.
[9] Graham AB, Goodband RD, Tokach MD, et al. The interactive effects of high-fat, high-fiber diets and ractopamine HCl on finishing pig growth performance, carcass characteristics, and carcass fat quality (J). Journal of Animal Science, 2014, 92(10):4585-4597.
[10] Li Meibiao, Xin Aiguo, Zhang Chunyong, et al. A comparative study on the effects of dietary fiber levels on the performance, small intestine morphology, small intestinal mucosal metallothionein 1 and acute phase protein gene expression in Gaoligong piglets and Duroc piglets (J). Chinese Journal of Animal Nutrition, 2015,27(06):1759-1768.
[11] Wang Cheng, Wang Wenting, Li Fuchang. Effects of dietary crude fiber levels on nitrogen metabolism and nutrient digestibility of Laiwu pigs and their hybrid pigs (J). Journal of Shandong Agricultural University, 2011, 42(03): 422-427.
[12] Ruan, Ji Xiang, Jiang Jianbing, et al. Effects of diets with different crude fiber levels on fattening and huai pork quality (J). Swine, 2011, 1:41-42.
[13] Fan Fuhao. Pig's blood sugar and health (J). Pig farming today, 2016, 7:72-74.
[14] Johansen HN, Knudsen K E. Effects of reducing the starch content in oat-based diets with cellulose on jejunal flow and absorption of glucose over an isolated loop of jejunum in pigs (J). Br J Nutr, 1994, 72 (5): 717-729.
[15] Serena A, Jorgensen H, Bach K. Absorption of carbohydrate-derived nutrients in sows as influenced by types and contents of dietary fiber (J). J Anim Sci, 2009, 87(1):136-147.
[16] Ji Jiuxiu, Fang Shaoming, Zhang Zhen, et al. Correlation Analysis of Blood Glucose, Blood Lipid and Fat Deposition in Pigs (J). Journal of Animal Husbandry and Veterinary Medicine, 2016, 47(04):686-692.
[17] Zhang Ling, Zhou Genlai, Duan Xiujun, et al. Effects of dietary metabolizable energy and crude fiber levels on the performance and serum biochemical parameters of 0- to 4-week-old meat geese (J). Chinese Journal of Veterinary Science, 2015, 35(7): 1187-1192.
[18] Holecek M. Relation between glutamine, branched-chain amino acids, and protein metabolism (J). Nutrition, 2002, 18(2): 130-133.
[19] Yang Yufen, Lu Dexun, Xu Yurong, et al. Effects of dietary fiber on performance and carcass quality of finishing pigs (J). Journal of Fujian Agriculture and Forestry University, 2002, 31(03): 366-369.
[20] Weng Run, Yang Yufen, Lu Dexun. Effects of Dietary Fibre on Growth Performance and Carcass Composition of Growing Pigs (J). Guangxi Agricultural and Biological Science, 2007, 26(4): 293-297.
[21] Zhang Qiuhua, Yang Zaibin, Yang Weiren, et al. Effects of dietary crude fiber levels on performance, carcass performance and meat quality of finishing pigs (J). Chinese Journal of Animal Science, 2014, 50(9):36-40.
[22] Yang Yufen. Dietary fiber for the digestive physiology and production performance of pigs in different growth stages (D). Hohhot: Inner Mongolia Agricultural University, 2001.
[23] Chen Minghong, Duan Jielin, Yin Jie, et al. Alleviating effects of glutamic acid and arginine on the damage of fattening pigs fed with mildew diets (J). Journal of Animal Nutrition, 2013, 25(9): 2101-2110.
[24] Xu Yurong, Lu Jianjun.Study on the Effect of Non-starch Polysaccharidase on the Structure and Function of Digestive Tract of Growing Pigs in Rice (J). Scientia Agricultura Sinica, 2003,36(2):201-207.
[25] Chen Hongquan, Jiang Moyou, Yu Jinxia. Effects of Different Feeding Levels on Weight Gages and Digestive Organs of Commercial Pigs in Southern Anhui Flower (J). Animal Husbandry and Veterinary Medicine, 2007, 6:24-25.