Effect of probiotic supplementation on serum/yolk cholesterol and on egg shell thickness in layers
- 1 December 1995
- journal article
- research article
- Published by Taylor & Francis Ltd in British Poultry Science
- Vol. 36 (5), 799-803
- https://doi.org/10.1080/00071669508417824
Abstract
1. The effect of probiotic supplementation on egg production, on serum and yolk cholesterol and on egg shell thickness in 24 White Leghorn layers was studied from 28–38 weeks of age. 2. In 3 treatments the diet was supplemented with 0, 100 and 150 mg probiotic/kg food. 3. In the 100 mg probiotic group, egg production improved by 5%, and shell thickness improved slightly, with fewer thin‐shelled eggs than in the control (8.6% compared to 18.6%). 4. The initial serum cholesterol concentration of 170.2 mg/dl in control birds remained similar throughout the 10‐week experimental period, whereas in the 150 mg group the initial value of 176.5 mg/dl decreased to 114.3 mg by week 10. 5. Yolk cholesterol concentration was 14.69 mg in the control group and 11.28 and 11.37 mg/g in the 100 and 150 mg probiotic groups respectively. Overall mean total egg cholesterol was thus reduced by probiotic supplementation.Keywords
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