تأثير استخدام مستويات مختلفة من البنسيلامين في التخفيف من تأثير التلوث بكلوريد الكادميوم في الأداء الانتاجي للسمان الياباني

الملخص EN

This experiment was conducted in Poultry Research Station-Agricultural Research Department-Ministry of Agriculture for 8 weeks 2/9/2018-2/11/2018 with the aim of studying the effect of using different levels of penicillamine to reduce the effect of cadmium chloride pollution in the productive performance of the Japanese quail, 156 females and 24 males at the age of 8 weeks were randomly distributed to four experimental treatments ,45birds with 3 replicates /15 birds.

The birds were fed a 2892 cal/kg diet and 20.06% protein while the temperature was 24-29 C° and 62% of humidity the lighting program consisted of 16 hours light, 8 hours of darkness the treatments was : T1 without any addition to drinking water,T2 addition 5mg of CdCl₂/L drinking water, T3 as inT2 plus addition 5mg of PA / 3ml drinking water/day /bird (was given from 900-1000 hour only), T4 as in T2 plus addition 10 mg of PA / 3ml drinking water /day/bird (was given from 900-1000 hour only) all treatments water is withheld for 1 hour from 800-900 hour).

birds in T1 and T2 were fed drinking water containing cadmium chloride while birds in T3 and T4 were provided with PA water in separate fountains for one hour per day (9 : 00-10 : 00) to ensure penicillamine consumption and to avoid The differences in the amount of water consumed.

birds weighed weekly, number and weight of eggs and consumption of feed and water recorded.

Last week eggs production was collected to measure fertility ratio, thickness and weight of the shell.

No significant differences were found between the treatments in most of the productive traits, while fertility ratio, egg production ratio in T3 and T4 were significantly lower than T1.

No significant differences between T1 and T2 in egg mass and fertility ratio.

No significant differences between T1 and T3 in food conversion retio and egg mass.

It can be concluded that 5 mg CdCl₂/L and 5, 10 mg of PA / 3ml drinking water /day/bird for 60 days have no impact on most of the productive traits of the Japanese quail.