نتایج جستجو برای: infected broilers key words coccidiosis
تعداد نتایج: 823359 فیلتر نتایج به سال:
Coccidiosis, caused by protozoa of the genus Eimeria, results in health and economic problems to several classes of livestock. The disease reduces feed consumption, body weight, and feed efficiency and may cause mortality of 24% in some cases (Fitzgerald, 1975). An estimated 77 million young cattle in the United States could be infected by coccidia during the first year of their life. Of these,...
In order to investigate cecal coccidiosis in broilers fed zeolite mixtures, two experiments were performed. The first was carried out in vitro, where the concentration of anticoccidial medicine not adsorbed by zeolites was determined by a spectrophotometric method. In the second experiment 100 one-day old broilers were divided into two groups that were fed with mixed feed containing the anticoc...
s of papers 29 118 Effects of dietary ingredients and Eimeria acervulina infection of chick performance, MEn and amino acid digestibility. M. E. Persia*, P. L. Utterback, E. L. Young, and C. M. Parsons, University of Illinois. In each of four two-wk experiments, chicks were inoculated either on D 9 or 11 with 5.0 x 105 sporulated oocysts (acute infection) or D 9, 12, 15 and 18 with lower levels...
Avian coccidiosis is a huge problem worldwide. Heavily infected animals that show severe clinical signs and coccidiostat resistance are causing important economic losses. The present study aimed to update the recent cases of coccidiosis in Central Java, Indonesia, and to show the importance of the disease in the region. A total of 699 samples were obtained from different chicken breed. Differen...
The efficacy of various carbohydrate-based cocktails in reducing the number of enteropathogens in the crops of broilers subjected to feed withdrawal was examined. Market-aged broilers that had been orally challenged with Salmonella typhimurium were provided the cocktails during a 12-h feed withdrawal. After feed withdrawal, the broilers were processed, and their crops were aseptically removed a...
background: the aim of the present study was the comparison of humoral and cell-mediated immunity in broilers fed with different levels of zinc during a coccidiosis challenge. methods: one hundred and forty- four one-day-old broiler chicks were used with three dietary zinc (40, 120 and 200 mg/kg). at 14 d of age, all birds were inoculated orally with 5×10 3 sporulated oocysts of e. tenella . at...
Chicken coccidiosis, caused by Eimeria sp., occurs in almost all poultry farms and causes huge economic losses in the poultry industry. Although this disease could be controlled by vaccination, the reduced feed conservation ratio limits the widespread application of anticoccidial vaccines in broilers because some intermediate and/or low immunogenic Eimeria sp. only elicit partial protection. It...
Abstract: Coccidiosis is one of the major parasitic diseases of poultry. In this study, to compare the effects of coccidiostatic drugs on fecal oocyst shedding and body weight gain of coccidi-infected broiler chickens, 180 one day old Ross 308 broiler chicks were randomly assigned to four treatments. Each treatment contained 3 replicates of 15 chickens. Treatments 1 and 2 were fed diets supplem...
Avian Metapneumovirus (aMPV) affects both turkeys and chickens. The virus is associated with swollen head syndrome (SHS) in broilers. Most of the studies regarding aMPV have been done in turkeys. Not much is known about the pathogenesis and immune response to aMPV in broilers. Therefore, our objectives were to study the pathogenesis and immune responses of broilers experimentally infected with ...
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