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FACTORS WHICH MAY INFLUENCE THE BIOTIN REQUIREMENT OF TURKEYS.
Abstract
A renewed research interest has developed in the past few years concerning the biotin requirement of turkeys. Most poultry nutritionists had assumed, at least through 1966, that biotin was adequately supplied in practical-type turkey rations. However, early in 196? Wilson reported an outbreak of dietary dermatitis involving a commercial flock of 19,000 turkey poults. The clinical symptoms were: marked listlessness; severe stunting; very rough, brittle feathers; thickened eyelids with exudate which tended to stick or hold the eyelids together; a 5 to 10# incidence of encrustations at the corners of the mouth; pasted vents; severe ulcerations of the foot pads and definite dryness of the skin and shanks. Similar symptoms were also found in other flocks but to a less severe degree.Since the symptoms were similar to those reported for a biotin deficiency, affected poults were injected with 250 meg. of d-biotin once a week for two weeks. This treatment resulted in prompt recovery. Treatment with calcium pantothenate was not effective. After this outbreak, the company routinely added supplemental biotin to all turkey breeder and starter feeds.
Subject Area
Animal sciences
Recommended Citation
HOLDER, DAVID PARKER, "FACTORS WHICH MAY INFLUENCE THE BIOTIN REQUIREMENT OF TURKEYS." (1973). ETD collection for University of Nebraska-Lincoln. AAI7412989.
https://digitalcommons.unl.edu/dissertations/AAI7412989