Effects of cassava residue supplementation on growth performance, nutrient digestibility, occurrence of diarrhea, fecal microflora and blood profiles in weaning pigs

cassava residue;weaning pig;growth performance;nutrient digestibility;occurrence of diarrhea;630

농업생명과학대학 농생명공학부 ;

University:서울대학교 대학원

关键词: cassava residue;    weaning pig;    growth performance;    nutrient digestibility;    occurrence of diarrhea;    630;   

Others  :  http://s-space.snu.ac.kr/bitstream/10371/125803/1/000000010043.pdf

美国|英语

来源: Seoul National University Open Repository

【 摘 要 】

This experiment was conducted to investigate the effects of supplementation of cassava residue supplementation on growth performance, nutrient digestibility, occurrence of diarrhea, fecal microflora and blood profiles in weaning pigs. A total of 128 crossbred weaning pigs ([Yorkshire × Landrace] × Duroc) with averaging 7.98 ± 0.83 kg of initial body weight were allotted to 4 treatments in a randomized complete block (RCB) design. Each treatment composed of 8 replications with 4 pigs per pen. The treatments were 1) Control (basal diet) 2) C 5 (replacing corn with cassava residue by 5%) 3) C 10 (replacing corn with cassava residue by 10%) and 4) C 15 (replacing corn with cassava residue by 15%). Three phase feeding programs (phase Ⅰ for 0 to 2 week, phase Ⅱ for 3 to 4 week and phase Ⅲ for 5 to 6 week) were used in this experiment. In feeding trial, there were no significant differences in BW, ADG, ADFI and G:F ratio among treatments. During 3 to 4 week, there was linear response on ADG as dietary cassava residue increased (P<0.05). Pigs fed increasing cassava residue had decreased ADFI (linear, P<0.05) during 5 to 6 week and the whole experimental period. In nutrient digestibility, there were linear responses on digestibilities of crude protein and crude fat as dietary cassava residue increased (P<0.01). The occurrence of diarrhea during 0 to 2 week was decreased when pigs were fed 5% of cassava residue diet compare to that of control diet (P<0.01). During 0 to 2 week, pigs fed 10% or 15% of dietary cassava residue showed higher E. coli and Salmonella counts compared to those of pigs fed 0% or 5% of cassava residue (P<0.01, P<0.05, respectively). Linear response was observed in IGF-1 concentration as cassava residue supplementation increased during 3 to 4 week (P<0.05). Consequently, these results demonstrated that cassava residue as an alternative feed ingredient could be supplemented at 10% level in weaning pig diet without growth retardation.