In this study, 90 crossbred weaned pigs（Duroc${\times}$Landrace${\times}$Large White）weighing - 7.86${\pm}$0.06 kg each were randomly allotted to one of three dietary treatments. Control pigs were a fed corn-soybean meal diet with no additives. The two treatment grou...
In this study, 90 crossbred weaned pigs（Duroc${\times}$Landrace${\times}$Large White）weighing - 7.86${\pm}$0.06 kg each were randomly allotted to one of three dietary treatments. Control pigs were a fed corn-soybean meal diet with no additives. The two treatment groups were fed the basal diet supplemented either with 75 mg/kg Aureomycin or 0.4% fructooligosaccharides (FOS) in order to study the effects on performance, serological indices, and enteric morphology in addition to examining the content of volatile fatty acids in intestinal digesta. The results indicate that the diets containing FOS and antibiotics had a significant effect on feed conversion ratios (FCR) and diarrhea incidence, as well as increasing the concentrations of isobutyric and butyric acid and total VFAs in the caecum, and acetic acid, isovaleric acid, and total VFAs in feces. Supplementation with FOS also resulted in significantly longer mucosal villi height and a higher percentage of goblet cells compared with the control. No difference was found in crypt depth among the three treatments. While serum glucose levels were significantly higher following FOS supplement, differences in serum total protein, albumin, globulin, and urea nitrogen levels were not significant.
In this study, 90 crossbred weaned pigs（Duroc${\times}$Landrace${\times}$Large White）weighing - 7.86${\pm}$0.06 kg each were randomly allotted to one of three dietary treatments. Control pigs were a fed corn-soybean meal diet with no additives. The two treatment groups were fed the basal diet supplemented either with 75 mg/kg Aureomycin or 0.4% fructooligosaccharides (FOS) in order to study the effects on performance, serological indices, and enteric morphology in addition to examining the content of volatile fatty acids in intestinal digesta. The results indicate that the diets containing FOS and antibiotics had a significant effect on feed conversion ratios (FCR) and diarrhea incidence, as well as increasing the concentrations of isobutyric and butyric acid and total VFAs in the caecum, and acetic acid, isovaleric acid, and total VFAs in feces. Supplementation with FOS also resulted in significantly longer mucosal villi height and a higher percentage of goblet cells compared with the control. No difference was found in crypt depth among the three treatments. While serum glucose levels were significantly higher following FOS supplement, differences in serum total protein, albumin, globulin, and urea nitrogen levels were not significant.
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문제 정의
Either the addition of antibiotic or FOS significantly increased pig performance or changed the intestinal microbial populations examined in this study. The lack of response to antibiotic feeding may suggest that there were dietary, pig, or environmental conditions that limited detection of a response.
The efficacy of FOS as a growth-promoting agent in swine diets was evaluated in this study. There were no significant differences in growth performance between pigs fed FOS diets or diets supplemented with aureomycin, although there were some in consistent trends for improved performance.
가설 설정
The objective of this study was to investigate the effect of FOS addition to piglet diets on performance, intestinal VFA patterns, serum indices, and enteric morphology. In addition, the study also sought to determine whether FOS could be used as an alternative to feed grade antibiotics
제안 방법
The diets consisted of a control diet (Table 1), the control diet with the addition of an antibiotic (Aureomycin, 75 mg/kg), and the control diet with the addition of 0.4% FOS (FOS, 0.4%). Previous research by the Animal Nutrition Lab, Animal Sci-Technology College, China Agricultural University found that the addition of 0.
The diets consisted of a control diet (Table 1), the control diet with the addition of an antibiotic (Aureomycin, 75 ㎎/㎏), and the control diet with the addition of 0.4% FOS (FOS, 0.4%).
The objective of this study was to investigate the effect of FOS addition to piglet diets on performance, intestinal VFA patterns, serum indices, and enteric morphology. In addition, the study also sought to determine whether FOS could be used as an alternative to feed grade antibiotics
30 m2 per pig. The pigs were fed five times daily (08:00, 10:00, 12:30, 15:30 and 18:30 h) with equal portions allotted at each meal. Animal handling procedures were in accordance with guidelines approved by China Agricultural University's Animal Care Committee.
데이터처리
The results are expressed as mean values with standard errors. Data were analyzed using analysis of variance for a completely randomized design, and differences between means were determined using one-way ANOVA procedures. Multi-comparison was used to test significance and probability values of p<0.
성능/효과
13% sucrose, 39.81% kestose, 49.78% nystose, 7.06% furanosyl nystose, for a total FOS of 96.65%.
FOS was provided by the School of Food Science and Technology, Southern Yangtze University. Based on high performance liquid chromatography (HPLC) analysis, the FOS contained 1.83% monosaccharides, 1.13% sucrose, 39.81% kestose, 49.78% nystose, 7.06% furanosyl nystose, for a total FOS of 96.65%.
Feed conversion efficiency was significantly meaning improver for the Aureomycin and FOS treatments than for the control treatment (p<0.05), while the diarrhea rate was significantly lower. No significant differences were found between the two treatment groups on average daily gain (ADG), final weight (Table 2), but significant differences were found between the two treatments and the control.
후속연구
There were no significant differences in growth performance between pigs fed FOS diets or diets supplemented with aureomycin, although there were some in consistent trends for improved performance. Further studies will be necessary to determine if FOS is truly effective in swine, or under what dietary conditions the FOS may be beneficial in swine.
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