Zeolites in diets for laying hens, influence on biomechanical traits of bones, body weight and mortality of hens
2002
Radovic, V. | Rajic, I. | Radovanovic, T. | Stanic, D. | Vukicevic, O. | Rajicic, V.
There was examined the influence of natural zeolites (clinoptilolite) added to feed meal, for laying hens in different levels. There were 1000 hens in examination, divided into 4 groups (per 25 hens). Control group did not gain zeolites in diet. Experimental groups gained: O-1st group 0.2; O-2nd group 0.3, and O-3rd group 0.5% of zeolites added to diet. The feeding experiment of laying hens lasted for 210 days. The results of examinations show: the greatest breaking strength of tibia had hens of O-2nd group (23.70); the greatest breaking strength of humulus had hens of O-3rd group (15.7); the greatest body weight at the end of experiment (sacrificed hens) had hens of O-3rd group (2,140 g); the lowest mortality was determined by hens of O-3rd group (2%).
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