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Effect of clinoptilolite on serum biochemical and haematological characters of broiler chickens during aflatoxicosis
Scopus
Toplam 144 atıf DOI
Clinoptilolite (CLI, a natural zeolite) incorporated into the diet at 1.5 and 2.5 per cent were evaluated for their ability to reduce the deleterious effects of 2.5 mg total aflatoxin (AF) kg-1 diet on broiler chickens from 1 to 21 days of age. In total 360 broiler chicks were divided into six equal treatment groups (control, AF, CLI (1.5 per cent), AF plus CLI (1.5 per cent), CLI (2.5 per cent) and AF plus CLI (2.5 per cent)). When compared with the controls, AF treatment significantly decreased serum total protein, albumin, inorganic phosphorus, uric acid, total cholesterol and the values of haematocrit, red blood cell counts, mean corpuscular volume, haemoglobin, thrombocyte counts, percentage of monocyte counts; increased values of white blood cell and heterophil counts. The addition of CLI (1.5 per cent) and CLI (2.5 per cent) to the AF-containing diet reduced the adverse effects of AF and should be helpful in a solution to the aflatoxicosis problem in poultry. (C) 2000 Harcourt Publishers Ltd.
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Effects of aflatoxin B1 on the development of the bursa of Fabricius and blood lymphocyte acid phosphatase of the chicken
Scopus
Havuzumuzda 97 atıf almış
1. In this study, embryotoxicity and effects of in ovo administration of aflatoxin B1 (AFB1) on the embryonic development of the bursa of Fabricius were determined in fertilised chicken eggs by histological methods and histochemical demonstration of acid phosphatase (ACP-ase) enzyme. Peripheral blood lymphocyte percentages were also estimated. 2. Embryonic stages were determined according to the Hamburger-Hamilton (H-H) scale. Mortality rates increased in AFB1-injected groups in a dose-dependent manner. Embryonic deaths were concentrated at H-H 31 in the 5 ng AFB1/egg group while the deaths were highest at H-H 25 in the 10 and 20 ng AFB1/egg groups. In the 40 ng AFB1/egg group, embryonic deaths mostly occurred during the first 70 to 72 h of incubation (H-H 20). 3. Bursal development was quite similar at d 7 of incubation in control and all experimental groups although development had been substantially impaired and retarded at d 10 of incubation in 10, 20 and 40 ng AFB 1/egg groups. A gradual decrease of ACP-ase positive lymphocyte numbers was observed with increasing AFB1 doses. The chicks in AFB1-treated groups hatched with poorly developed bursae compared with those of the controls. However, proportions of ACP-ase positive lymphocytes substantially increased at hatch and at 21 d of incubation all groups had similar numbers. 4. The results revealed that breeder diets should be investigated for aflatoxins and specifically AFB1, in cases of low hatchability and flock immunity, because low concentration of AFB 1 transferred into the fertilised eggs might be the cause of serious problems.
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Kurumlar (1)
Selçuk Üniversitesi
Selçuklu, Turkey