Effect of sugar supplementation on rumen protozoa profile and papillae development in retarded growth calves.
The effect of sugar supplementation with 1 g/kg BW twice a week for eight weeks on rumen protozoa was determined in ten retarded growth calves. Rumen juice was sampled by abdominal paracentesis during the experiment. Papillae development of rumens excised by experimental laparotomy was macro- and micromorphologically determined before and after sugar supplementation in a selected calf. The numbers of Entodinium, Isotricha, Dasytricha and Epidinium protozoa increased by 3 to 12 folds after 1-3 wk of supplementation and subsequently decreased. The heights of the rumen papillae after sugar supplementation showed marked development compared with before supplementation (Post vs. Pre: 4.44 ± 0.43 vs. 1.36 ± 0.24 mm). Sugar supplementation accommodates the rumen protozoa profile and stimulates papillae development in retarded growth calves.
Sato
Tomohiro
T
Department of Clinical Veterinary Science, United Graduate School of Veterinary Science, Yamaguchi University, Yamaguchi, Japan.
Hidaka
Kyosuke
K
Mishima
Takakibi
T
Nibe
Kazumi
K
Kitahara
Go
G
Hidaka
Yuichi
Y
Katamoto
Hiromu
H
Kamimura
Shunichi
S
D000818:Animals; D000831:Animals, Newborn; D002417:Cattle; D002418:Cattle Diseases / Q000188:drug therapy* / Q000469:parasitology; D016798:Ciliophora; D019587:Dietary Supplements; D005753:Gastric Mucosa / Q000187:drug effects / Q000473:pathology; D006130:Growth Disorders / Q000188:drug therapy / Q000662:veterinary*; D012417:Rumen / Q000187:drug effects / Q000469:parasitology*; D013272:Stomach Diseases / Q000188:drug therapy / Q000469:parasitology / Q000662:veterinary*; D013395:Sucrose / Q000627:therapeutic use*
D013395:Sucrose