مجلة الأنبار للعلوم الزراعية (Jun 2024)
EFFECT OF ADDING NATURAL ZEOLITE AND VITAMIN E TO LAYING HANS DIETS ON SOME PRODUCTIVE TRAITS DURING THE SUMMER SEASON
Abstract
This study was conducted in one of the poultry fields of the Department of Animal Production/College of Agriculture/ University of Anbar, for the period from 20/7/2021 to 12/10/2021, with the aim of knowing the effect of adding natural zeols to the diet on the productive performance of laying hens. 72 laying, Lohman Brown strain, 43 weeks old hens were used in this experiment, and they were randomly distributed to six treatments and with four replicates per treatment (3 hens/ replicate) and a regular diet (laying hens' diet) was provided with the additions, and the treatments were as follows: T1 Vitamin E 0.06, T2, T3, T4 and T5 by adding 0.25, 0.50, 0.75 and 1.0% respectively natural zeolite and T6 as the control treatment, the results showed significant increase (P≤0.05) in the percentage of egg production in the first productive period for the third, fourth and fifth treatments (0.25, 0.5, 0.75, 1%) zeolite compared to the control treatment. During the second productive period, the fourth and fifth treatment (0.75 and 1%) zeolites sequentially outperformed the control treatment, while during the third productive period and the total production period, the fifth treatment (one zeolite) outperformed the control treatment. There was also a significant increase in the mean egg weight during the third productive period for the second, third, fourth and fifth treatment (0.25, 0.5, 0.75 and 1%) zeolite sequentially compared to the control treatments and the first treatment (0.06 % vitamin E).There was a significant increase in egg mass in the second and third periods and in total productivity, where the third (0.5% zeolite),fourth (0.75% zeolite) and fifth (1% zeolite) treatments significantly outperformed the control treatment. Also, the third, fourth and fifth treatments (0.5, 0.75, 1%) zeolite were significantly superior to the cumulative number of eggs during the experiment periods and the total productive period of the experiment. The addition of zeolite led to a significant improvement in the feed conversion factor (gm feed gm eggs-1) for the third, fourth and fifth treatments (0.5, 0.75 and 1%) zeolite sequentially compared to the control treatment during the second and third and the total periods of the experiment. Significant improvement in the surface area of the cortex for the second, third and total production periods for the second, third, fourth and fifth treatments compared with the control treatment.
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