Chen, Y.J.
(Department of Animal Resource and Science, Dankook University)
,
Kwon, O.S.
(Department of Animal Resource and Science, Dankook University)
,
Min, B.J.
(Department of Animal Resource and Science, Dankook University)
,
Shon, K.S.
(Department of Animal Resource and Science, Dankook University)
,
Cho, J.H.
(Department of Animal Resource and Science, Dankook University)
,
Kim, I.H.
(Department of Animal Resource and Science, Dankook University)
Two experiments were conducted to evaluate the effects of dietary Biotite V (BV) supplementation on growth performance, nutrients digestibility and fecal noxious gas content in finishing pigs. In Exp. 1, a total of eighty pigs (initial body weight 88.0${\pm}$1.35 kg) were used in a 35-d g...
Two experiments were conducted to evaluate the effects of dietary Biotite V (BV) supplementation on growth performance, nutrients digestibility and fecal noxious gas content in finishing pigs. In Exp. 1, a total of eighty pigs (initial body weight 88.0${\pm}$1.35 kg) were used in a 35-d growth trial. Pigs were blocked by weight and allotted to five dietary treatments in a randomized complete block design. There were four pigs per pen and four pens per treatment. Dietary treatments included: 1) Control (CON; basal diet), 2) 200 mesh BV1.0 (basal diet+200 mesh Biotite V 1.0%), 3) 325 mesh BV1.0 (basal diet+325 mesh Biotite V 1.0%), 4) 200 mesh BV2.0 (basal diet+200 mesh Biotite V 2.0%) and 5) 325 mesh BV2.0 (basal diet+325 mesh Biotite V 2.0%). Through the entire experimental period, there were no significant differences in ADG, ADFI and gain/feed among the treatments (p>0.05). With the addition of Biotite V in diet, DM and N digestibilities were increased significantly (p<0.01). Also, Ca and P digestibilities tended to increase in pigs fed Biotite V supplemented diet (p<0.01) compared to pigs fed control diet. Supplementation of Biotite V in diet reduced the fecal $NH_3-N$ and volatile fatty acid (VFA) compared to CON treatment (p<0.01). In Exp. 2, a total of sixty four pigs (initial body weight 84.0${\pm}$1.05 kg) were used in a 35-d growth trial. Pigs were blocked by weight and allotted to four dietary treatments in a randomized complete block design. There were four pigs per pen and four pens per treatment. Dietary treatments included: 1) LP (low protein diet), 2) HP (high protein diet), 3) LP+BV (low protein diet+325 mesh Biotite V 1.0%) and 4) HP+BV (high protein diet+325 mesh Biotite V 1.0%). Through the entire experimental period, ADG and gain/feed tended to increase in HP and HP+BV treatments, however, there were no significant differences (p>0.05) among the treatments. With the addition of Biotite V in diets, digestibilities of nutrients (DM, N, Ca and P) were increased significantly (p<0.01). The addition of Biotite V in diets reduced the ammonia emissions in feces (p<0.01). Supplementation of Biotite V in diets also reduced the fecal propionic acid, butyric acid and acetic acid (p<0.01) compared to pigs fed diets without Biotite V. In conclusion, supplementation of Biotite V can increase nutrients digestibility and reduce fecal $NH_3-N$ and volatile fatty acid (VFA) concentrations in finishing pigs.
Two experiments were conducted to evaluate the effects of dietary Biotite V (BV) supplementation on growth performance, nutrients digestibility and fecal noxious gas content in finishing pigs. In Exp. 1, a total of eighty pigs (initial body weight 88.0${\pm}$1.35 kg) were used in a 35-d growth trial. Pigs were blocked by weight and allotted to five dietary treatments in a randomized complete block design. There were four pigs per pen and four pens per treatment. Dietary treatments included: 1) Control (CON; basal diet), 2) 200 mesh BV1.0 (basal diet+200 mesh Biotite V 1.0%), 3) 325 mesh BV1.0 (basal diet+325 mesh Biotite V 1.0%), 4) 200 mesh BV2.0 (basal diet+200 mesh Biotite V 2.0%) and 5) 325 mesh BV2.0 (basal diet+325 mesh Biotite V 2.0%). Through the entire experimental period, there were no significant differences in ADG, ADFI and gain/feed among the treatments (p>0.05). With the addition of Biotite V in diet, DM and N digestibilities were increased significantly (p<0.01). Also, Ca and P digestibilities tended to increase in pigs fed Biotite V supplemented diet (p<0.01) compared to pigs fed control diet. Supplementation of Biotite V in diet reduced the fecal $NH_3-N$ and volatile fatty acid (VFA) compared to CON treatment (p<0.01). In Exp. 2, a total of sixty four pigs (initial body weight 84.0${\pm}$1.05 kg) were used in a 35-d growth trial. Pigs were blocked by weight and allotted to four dietary treatments in a randomized complete block design. There were four pigs per pen and four pens per treatment. Dietary treatments included: 1) LP (low protein diet), 2) HP (high protein diet), 3) LP+BV (low protein diet+325 mesh Biotite V 1.0%) and 4) HP+BV (high protein diet+325 mesh Biotite V 1.0%). Through the entire experimental period, ADG and gain/feed tended to increase in HP and HP+BV treatments, however, there were no significant differences (p>0.05) among the treatments. With the addition of Biotite V in diets, digestibilities of nutrients (DM, N, Ca and P) were increased significantly (p<0.01). The addition of Biotite V in diets reduced the ammonia emissions in feces (p<0.01). Supplementation of Biotite V in diets also reduced the fecal propionic acid, butyric acid and acetic acid (p<0.01) compared to pigs fed diets without Biotite V. In conclusion, supplementation of Biotite V can increase nutrients digestibility and reduce fecal $NH_3-N$ and volatile fatty acid (VFA) concentrations in finishing pigs.
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제안 방법
Pigs were allowed ad libitum access to feed and water throughout the experiment. Body weight and feed intake were measured at the end of experiment to determine ADG, ADFI and gain/feed. Chromic oxide (Cr2O3) was added at 0.
The experiment was carried out for 35 days. Pigs were blocked by body weight and allotted randomly to four dietary treatments in a randomized complete block design. Dietary treatments included: 1) LP (low protein diet), 2) HP (high protein diet), 3) LP+BV (low protein diet+325 mesh Biotite V 1.
It is known that ammonia N is a major source of environment pollution. The primary objective of present study was to determine fecal NH3-N and VFA concentrations when pigs fed diet with Biotite V Our experiments confirmed that supplementation of Biotite V decreased fecal NH3-N and VFA concentrations significantly. Similar findings were observed by Kwon et al.
이론/모형
All the data were analyzed by the GLM procedure of SAS (1996). In Exp.
All the data were analyzed by the GLM procedure of SAS (1996). In Exp.
Feed and feces samples were analyzed for DM, N, Ca and P concentrations (AOAC, 1995). Chromium was measured by UV absorption spectrophotometer (Shimadzu, UV-1201, Japan) and apparent digestibilities of nutrients (DM, N, Ca and P) were calculated using the indirect-ratio method. NH3-N concentration was determined according to the methods of Chaney and Marbach (1962).
Chromium was measured by UV absorption spectrophotometer (Shimadzu, UV-1201, Japan) and apparent digestibilities of nutrients (DM, N, Ca and P) were calculated using the indirect-ratio method. NH3-N concentration was determined according to the methods of Chaney and Marbach (1962). VFA concentration was analyzed as follows: 2 g fecal samples were obtained and diluted with 8 mL of distilled water.
성능/효과
+GB was observed in this trial. All those results from Exp. 2 indicated that addition ofBiotite V in diets could decrease fecal NH3-N and this effect was more dramatic in diet with high level protein compared to diet with low level protein. However, why more effect was observed in high protein level diet can’t be fully explained by present study.
+GB was observed in this trial. All those results from Exp. 2 indicated that addition ofBiotite V in diets could decrease fecal NH3-N and this effect was more dramatic in diet with high level protein compared to diet with low level protein. However, why more effect was observed in high protein level diet can’t be fully explained by present study.
(2003). However, results from our experiments indicated that nutrients digestibilities were increased significantly by addition of Biotite V. In Exp. 2, nutrients digestibilities in HP+BV treatment were higher than other treatments (Table 7). This result indicated that the effects of Biotite V in high protein level diets were better than low protein level diets.
In conclusion, Biotite V supplementation to cornsoybean meal based diet improved nutrients digestibility and decreased fecal NH3-N and VFA concentrations in finishing pigs.
, 2001). The results in our study indicated that with the supplementation ofBiotite V in diets, fecal propionic acid, butyric acid and acetic acid of finishing pigs decreased significantly, also more dramatic effect was observed in high protein level diets. This effect might be due to digestibilities of nutrients were improved by the addition of Biotite V.
, 2001). The results in our study indicated that with the supplementation ofBiotite V in diets, fecal propionic acid, butyric acid and acetic acid of finishing pigs decreased significantly, also more dramatic effect was observed in high protein level diets. This effect might be due to digestibilities of nutrients were improved by the addition of Biotite V.
후속연구
However, we collected fresh fecal samples at the end of experiment period, therefore, this result may not be accurate enough to evaluate the status of VFA during all experiment period. Further research is needed to determine fecal VFA concentration throughout all experiment period.
The present findings are in agreement with the findings of Thacker (2003). More studies should be conducted to evaluate this effect.
참고문헌 (19)
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