Shon, K.S.
(Dept. of Animal Resource and Sciences, Dankook University)
,
Hong, J.W.
(Dept. of Animal Resource and Sciences, Dankook University)
,
Kwon, O.S.
(Dept. of Animal Resource and Sciences, Dankook University)
,
Min, B.J.
(Dept. of Animal Resource and Sciences, Dankook University)
,
Lee, W.B.
(Dept. of Animal Resource and Sciences, Dankook University)
,
Kim, I.H.
(Dept. of Animal Resource and Sciences, Dankook University)
,
Park, Y.H.
(Probionic, Inc.)
,
Lee, I.S.
(Probionic, Inc.)
Two experiments were conducted to evaluate the effects of direct-fed microbial supplementation on the growth performance and nutrient digestibility in pigs. In experiment 1, forty eight pigs were used in a 42-d growth assay. There were four pigs per pen and three pens per treatment. Dietary treatmen...
Two experiments were conducted to evaluate the effects of direct-fed microbial supplementation on the growth performance and nutrient digestibility in pigs. In experiment 1, forty eight pigs were used in a 42-d growth assay. There were four pigs per pen and three pens per treatment. Dietary treatments included 1) NC (without antibiotic basal diet), 2) PC (NC diet+0.1% antibiotic, 100 g/kg chlortetracycline), 3) DFM-1 (NC diet+0.2% Lactobacillus reuteri and Lactobacillus salivarius complex) and 4) DFM-2 (NC diet+0.2% Lactobacillus reuteri, Lactobacillus salivarius, Lactobacillus plantarum and Yeast complex). For the overall period, no treatment had significant effects in growth performance. In the nutrition digestibility, the pigs fed DFM diets were improved in DM and N digestibility compared with the pigs fed NC and PC diets but it was not significantly different. In experiment 2, sixty four crossbred pigs were used in a 98-d growth assay. There were four pigs per pen and four pens per treatment. Dietary treatments included 1) HND (high nutrient diet), 2) LND (low nutrient diet), 3) HND+DFM (HND diet+0.2% Lactobacillus reuteri and Lactobacillus plantarum complex) and 4) LND+DFM (LND diet+0.2% Lactobacillus reuteri and Lactobacillus plantarum complex). For overall period of growing phase, the pigs fed LND diets had improved gain/feed (p=0.01) and for overall period in the finishing phase, the pigs fed LND with DFM diets had higher ADG, ADFI and gain/feed than the others but there were no significant differences (p>0.13). In total period of growing-finishing phase, the pigs fed LND diet had higher gain/feed than the pigs fed HND diets (p<0.05). In growing phase, there were not significant differences among the treatments means for DM and N digestibility. However, the pigs fed diets with DFM had improved N digestibility (p<0.02) compared to the pigs fed diets without DFM in finishing phase. In conclusion, DFM slightly improved the growth performance in growing-finishing pigs.
Two experiments were conducted to evaluate the effects of direct-fed microbial supplementation on the growth performance and nutrient digestibility in pigs. In experiment 1, forty eight pigs were used in a 42-d growth assay. There were four pigs per pen and three pens per treatment. Dietary treatments included 1) NC (without antibiotic basal diet), 2) PC (NC diet+0.1% antibiotic, 100 g/kg chlortetracycline), 3) DFM-1 (NC diet+0.2% Lactobacillus reuteri and Lactobacillus salivarius complex) and 4) DFM-2 (NC diet+0.2% Lactobacillus reuteri, Lactobacillus salivarius, Lactobacillus plantarum and Yeast complex). For the overall period, no treatment had significant effects in growth performance. In the nutrition digestibility, the pigs fed DFM diets were improved in DM and N digestibility compared with the pigs fed NC and PC diets but it was not significantly different. In experiment 2, sixty four crossbred pigs were used in a 98-d growth assay. There were four pigs per pen and four pens per treatment. Dietary treatments included 1) HND (high nutrient diet), 2) LND (low nutrient diet), 3) HND+DFM (HND diet+0.2% Lactobacillus reuteri and Lactobacillus plantarum complex) and 4) LND+DFM (LND diet+0.2% Lactobacillus reuteri and Lactobacillus plantarum complex). For overall period of growing phase, the pigs fed LND diets had improved gain/feed (p=0.01) and for overall period in the finishing phase, the pigs fed LND with DFM diets had higher ADG, ADFI and gain/feed than the others but there were no significant differences (p>0.13). In total period of growing-finishing phase, the pigs fed LND diet had higher gain/feed than the pigs fed HND diets (p<0.05). In growing phase, there were not significant differences among the treatments means for DM and N digestibility. However, the pigs fed diets with DFM had improved N digestibility (p<0.02) compared to the pigs fed diets without DFM in finishing phase. In conclusion, DFM slightly improved the growth performance in growing-finishing pigs.
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문제 정의
Also, many studies evaluated effects of single direct-fed microbial in pigs and broiler chicks. Thus, the objective of this study was to investigate the effect of Lactobacillus reuteri-based direct-fed microbial complex on the growth performance in growing-finishing pigs.
제안 방법
Pigs were allowed to consume feed and water ad libitum from a two-holes self-feeder and nipple waterer. Pig weights and feed consumption were measured on d 21, 42, 70 and 98 to determine ADG, ADFI and gain/feed. On d 35 of growing phase and d 91 of finishing phase of the experiment, fecal samples were collected from three pigs per pen by rectal massage, pooled within pen, dried and ground.
이론/모형
Laboratory analyses of feed and feces included DM and N (AOAC, 1995) and chromium concentration was determined by spectrophotometry (Shimadzu, UV-1201, Japan). Data were analyzed as a randomized complete block design using the GLM procedure of SAS (1996), with pen as the experimental unit. Duncan’s multiple range test (Duncan, 1955) was used to determine significant differences among treatments.
LND. Data were analyzed as a randomized complete block design using the GLM procedure of orthogonal contrasts of SAS (1996), with pen as the experimental unit.
성능/효과
During 21-42 days, the treatment of LND with DFM was higher in ADG, ADFI and gain/feed compared to the others but it didn’t show different statistical results.
During 42-70 days of finishing phase, the pigs fed LND diet were significantly different in gain/feed (p<0.02) compared to pigs fed HND diet.
For overall period in the finishing phase, the pigs fed LND with DFM diet were higher ADG, ADFI and gain/feed than the others but there were no significant differences (p>0.13).
They suggested that finishing pigs fed direct-fed microbial complex diet improved their ADG compared to finishing pigs fed control diet. In conclusion, direct-fed microbial supplementation was slight improvements in performance of growing-finishing pigs, however, the responses was of lower magnitude than in young pigs. Also, direct-fed microbial supplementation was may be more effective under stressful conditions (field conditions).
In the nutrient digestibility, the pigs fed DFM diets were improved in DM and N compared with the pigs fed NC and PC diet but it was not significantly different (p>0.05).
05). In the nutrient digestibility, the pigs fed DFM diets were improved in DM and N compared with the pigs fed NC and PC diet but it was not significantly different (p>0.05).
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