|
KMID : 1025520000420010065
|
|
Journal of Animal Science and Technology
2000 Volume.42 No. 1 p.65 ~ p.72
|
|
|
Effects of Feeding Diets Containing a Probiotic or Antibiotics on Growth , Visceral Weight , and Intestinal and Fecal Urease Activity in Weanling Pigs
|
|
Lee Chong-Eon
Kim Seung-Il
Ko Moon-Suck
Ko S. B.
Kim Kyu-Il
|
|
|
Abstract
|
|
|
|
A study was conducted to determine the effect of dietary probiotic or antibiotics on growth, visceral weight, and intestinal and fecal urease activity in weanling pigs. Twenty-seven Landrace male pigs (7.2± 0.4 kg) weaned at 24 d of age were divided into three groups of 9 pigs each on the basis of weight and litter. Three groups of three pigs (one pen) each were assigned to each of the following diets: a control diet or diets containing 0.1% probiotic (Bacillus toyoi spore) or 0.1% antibiotics (1:1 mixture of kitasamycin and sulfamethazine). Average daily gain (ADG), feed efficiency (G/F) and the visceral weight were measured, and urease activity in fecal samples (weekly) and intestinal contents (at the end of a 6-week feeding experiment) was determined. ADG and feed efficiency and relative visceral weight were not different (P＞0.05) among the three treatments. Urease activity in the stomach, small intestine and large intestine (cecum + colon) was not influenced (P＞0.05) by diets. Urease activity was much higher in the large intestinal contents than in the small intestinal contents. Fecal urease activity was lower (P＜0.01) in pigs fed the diet containing antibiotics than in pigs fed the control or the diet containing a probiotic. Results of our study suggest that the effect of dietary probiotics or antibiotics on urease activity and growth performance can vary, depending on animals and environments.
|
|
|
KEYWORD
|
|
|
Urease activity, Probiotics, Antibiotics, Visceral weight, Pig
|
|
|
FullTexts / Linksout information
|
|
|
|
|
|
Listed journal information
|
|
|
|