Chemical treatment of moldy maize grain with aqueous ammonia and its feeding value to broiler chicks
1998
Khan, M.F. (National Agricultural Research Centre, Islamabad (Pakistan). Animal Sciences Inst.) | Hussain, A. | Ayaz, M. | Siddique, M. | Kausar, R.
The effect of aqueous ammonia was studied on chemical composition, detoxification of aflatoxin in moldy maize grains and its feeding value to broiler chicks. One hundred sixty broiler chicks of 5 weeks age were used and randomly divided into four treatments. About forty kilograms of yellow maize was used and half of it was made moldy. Then half of the moldy and half of the non-moldy maize grains were treated with 3% aqueous ammonia. Four treatments were used 1) maize as such 2) ammoniated maize 3) moldy maize 4) ammoniated moldy maize. The aflatoxin level was 400 ppb and 100 ppb in moldy maize and ammoniated moldy maize respectively. These grains were mixed at the rate of 15% to the normal broiler feed and fed for two weeks. Chemical analysis of the feed have shown that mold growth increased the crude fibre contents from 4.25 to 4.65 and reduced the ether extract from 5.6 to 5.4. Dressing percentage was lowest (61.7%) in chicks which were fed with diet containing moldy maize as compared to non-moldy maize grains. Lowest growth late (279.30 gm) was observed in chicks fed on moldy maize diet as compared to other diets. Chicks on moldy maize diet have shown hepatotoxicosis because of higher value of serum enzymes like lactic dehydrogenase (LDH), creatine phosphokinase (CPK) and serum transaminase. The chicks on the diet containing ammoniated moldy maize grain have the lower value of these enzymes except alkaline phosphatase (ALK). Feeding of moldy maize cause the leakage of liver enzymes. Therefore, treatment of such grains with aqueous ammonia may reduce the risk of aflatoxicosis which is common problem in poultry feed industry of Pakistan.
Показать больше [+] Меньше [-]Ключевые слова АГРОВОК
Библиографическая информация
Эту запись предоставил National Agricultural Research Centre