Dynamics of ruminal ciliated protozoa in feedlot cattle
نویسندگان
چکیده
منابع مشابه
Moderation of ruminal fermentation by ciliated protozoa in cattle fed a high-grain diet.
The objective of this study was to assess the influence of ciliated protozoa on ruminal fermentation in cattle fed high-grain diets. Six ruminally cannulated steers fed a corn-based grain diet (85% concentrate plus 15% alfalfa hay) at 12-h intervals were assigned randomly to two groups, ciliate free and faunated, in a crossover design. Defaunation was by ruminal emptying, omasal flushing, and t...
متن کاملRuminal ciliated protozoa in cattle fed finishing diets with or without supplemental fat.
Ruminal samples were collected at slaughter from 364 unfasted steers fed different finishing diets to obtain information on numbers and species distribution of ciliated protozoa in feedlot cattle. Total numbers of protozoa averaged 1.59 X 10(5)/g of ruminal contents. A total of 47 steers (12.9%) were defaunated, but 4.1% of the steers possessed numbers of protozoa greater than 10(6)/g. Entodini...
متن کاملOmasal ciliated protozoa in cattle, bison, and sheep.
Omasal contents were collected from slaughtered cattle (n = 54), bison (n = 15), and sheep (n = 40) to determine numbers and generic distribution of ciliated protozoa. Total protozoan numbers were significantly lower in omasal contents than in ruminal contents of all three species, but the percent composition of all protozoan genera was similar between omasal and ruminal populations. The highes...
متن کاملInvestigation on Effects of Parenterally Given Vitamin B Complex on Ruminal Protozoa in Cattle
B complex vitamins play an important role in the metabolism of carbohydrates, proteins and fats. The aim of this study was to determine the effects of B complex vitamins administered by exogenous route on rumen protozoa, hematological and blood biochemical parameters in clinically healthy cattles. Thirty cattles aged between 6 to 18 months, and breeding in Afyonkarahisar Province and surroundin...
متن کاملDynamics of protozoa in the rumen of cattle.
1. The dynamics of protozoa were studied in two groups of rumen-fistulated cattle fed on a basal diet of molasses ad lib., with oaten chaff given at 6 or 18 g/kg live weight. This diet resulted in different mixtures of protozoal species in the populations in the rumen. 2. The rumen protozoa were studied by intrarumen injections of protozoa labelled in vitro with [14CH3]choline. An indication of...
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ژورنال
عنوان ژورنال: Applied and Environmental Microbiology
سال: 1990
ISSN: 0099-2240,1098-5336
DOI: 10.1128/aem.56.10.3174-3178.1990