Growth performance of nursery and grower-finisher pigs fed diets supplemented with benzoic acid

作     者：Hengxiao Zhai Wen Ren Shikui Wang Jinlong Wu Patrick Guggenbuhl Anna-Maria Kluenter 

作者机构：DSM (China) Animal Nutrition Research Center Co.Ltd. DSM Nutritional Products FranceCentre de Recherche en Nutrition Animale DSM Nutritional Products Ltd. 

出 版 物：《Animal Nutrition》 (动物营养（英文版）)

年 卷 期：2017年第3卷第3期

页      面：232-235页

核心收录：

学科分类：090502[农学-动物营养与饲料科学] 0905[农学-畜牧学] 09[农学] 

主　　题：Benzoic acid Nursery pig Grower-finisher pig Average daily gain Average daily feed intake Feed conversion ratio 

摘      要：Two experiments were conducted to investigate the efficacy of benzoic acid on the growth performance of nursery and grower-finisher pigs. A randomized complete block design was used in both experiments with the initial body weight as the blocking factor. There were 3 treatments corresponding to 3 dietary levels of benzoic acid: 0, 0.3%, and 0.5%. In experiment 1, a total of 144 PIC L1050 barrows(initial body weight 7.1 ± 0.6 kg) were used with each treatment replicated 8 times. In experiment 2, a total of 288 PIC L1050 barrows(initial body weight 36.1 ± 3.6 kg) were used with each treatment replicated 16 *** were 6 barrows in each replicate pen for both experiments. Experiments 1 and 2 lasted 28 and 70 days, respectively. In experiment 1, average daily gain(ADG) of all growth phases increased linearly(P 0.05) with increasing supplementation of benzoic acid, which led to a linear improvement in average body weight on d 28(P 0.05). There was also an improvement in feed conversion ratio(FCR) of d 0 to 14(linear effect: P 0.05) and in average daily feed intake(ADFI) of d 14 to 28 and d 0 to 28(linear effect:P 0.01). In experiment 2, ADG during d 0 to 35 and d 35 to 70 and average body weight on d 35 improved linearly(P 0.05) with increasing supplementation of benzoic acid. Average daily gain of d 0 to70 and average body weight on d 70 increased significantly in a both linear and quadratic manner. There was a linear improvement in FCR in all growth phases(P 0.05). In conclusion, the dietary inclusion of benzoic acid at the supplementation levels of 0.3% and 0.5% significantly improved the growth performance of nursery and grower-finisher pigs in the current study; the nursery pigs responded to the dietary supplementation of benzoic acid up to 0.5% linearly while the grower-finisher pigs achieved the optimal ADG at the calculated supplementation level of 0.36%.