The aim of this study was to evaluate the effect of dietary supplementation with sodium butyrate (BS) on productive performance in fattening guinea pigs. Fifty 14-21 days old weaned male guinea pigs were randomly distributed in five treatments (0, 100, 200, 300 ppm of BS, 200 ppm of Zn-Bacitracin). Body weight gain, feed consumption and feed conversion were evaluated 70 days after supplementation. No response patterns were detected due to BS or Zn-Bacitracin treatments. It is concluded that, under the experimental conditions, supplementation with BS did not improve the productive parameters evaluated.

The aim of this study was to evaluate the effect of dietary supplementation with sodium butyrate (BS) on productive performance in fattening guinea pigs. Fifty 14-21 days old weaned male guinea pigs were randomly distributed in five treatments (0, 100, 200, 300 ppm of BS, 200 ppm of Zn-Bacitracin). Body weight gain, feed consumption and feed conversion were evaluated 70 days after supplementation. No response patterns were detected due to BS or Zn-Bacitracin treatments. It is concluded that, under the experimental conditions, supplementation with BS did not improve the productive parameters evaluated.

The present study evaluated the effect of supplementation with increasing levels of a liquid probiotic on the histomorphometry of the small intestine in guinea pigs. Fifty male guinea pigs were used from 3 days of age, distributed in a completely randomized design of five treatments with 10 repetitions each: 0, 1, 2 or 3 ml of probiotic or an antibiotic growth promoter (AGP, Zn-Bacitracin). Samples of duodenum, jejunum and ileum were taken from each animal at 84 days of age and the length and width of the intestinal villi, the depth of the Lieberkühn crypts and the length/depth relationship were measured. There were no consistent response patterns for most of the measurements in the three segments, except for a linear response (p=0.047) of the length/depth ratio in the duodenum and a positive effect (p=0.008) of the AGP over the length of villi in the ileum. It is concluded that, under ...

The present study evaluated the effect of supplementation with increasing levels of a liquid probiotic on the histomorphometry of the small intestine in guinea pigs. Fifty male guinea pigs were used from 3 days of age, distributed in a completely randomized design of five treatments with 10 repetitions each: 0, 1, 2 or 3 ml of probiotic or an antibiotic growth promoter (AGP, Zn-Bacitracin). Samples of duodenum, jejunum and ileum were taken from each animal at 84 days of age and the length and width of the intestinal villi, the depth of the Lieberkühn crypts and the length/depth relationship were measured. There were no consistent response patterns for most of the measurements in the three segments, except for a linear response (p=0.047) of the length/depth ratio in the duodenum and a positive effect (p=0.008) of the AGP over the length of villi in the ileum. It is concluded that, under ...

The aim of this study was to evaluate the effect of increasing levels of probiotic as zinc-bacitracin substitutes in the productive performance and intestinal morphology of fattening guinea pigs. Fifty weaned male guinea pigs were randomly distributed into five treatments consisting of supplementation with 0, 1, 2 and 3 ml of the probiotic "Guinea Pig Biomodulator" and an additional treatment with zinc-bacitracin. Body weight gain, feed intake and feed conversion during 70 days of growth, and intestinal morphology variables: villus length and width, Lieberkühn crypt depth, and villus length/crypt depth ratio were evaluated in the duodenum, jejunum, and ileum. Increasing probiotic levels linearly improved (p=0.008) feed conversion rate but had no effect on the other productivity components. In the intestine, only the length/depth relationship in the ileum was positively affected (p=0.026...

The aim of this study was to evaluate the effect of increasing levels of probiotic as zinc-bacitracin substitutes in the productive performance and intestinal morphology of fattening guinea pigs. Fifty weaned male guinea pigs were randomly distributed into five treatments consisting of supplementation with 0, 1, 2 and 3 ml of the probiotic "Guinea Pig Biomodulator" and an additional treatment with zinc-bacitracin. Body weight gain, feed intake and feed conversion during 70 days of growth, and intestinal morphology variables: villus length and width, Lieberkühn crypt depth, and villus length/crypt depth ratio were evaluated in the duodenum, jejunum, and ileum. Increasing probiotic levels linearly improved (p=0.008) feed conversion rate but had no effect on the other productivity components. In the intestine, only the length/depth relationship in the ileum was positively affected (p=0.026...