نتایج جستجو برای: layer chickens
تعداد نتایج: 304227 فیلتر نتایج به سال:
OBJECTIVE Despite an increasing number of investigations into the pathophysiology of necrotic enteritis (NE) disease, etiology of NE-associated diseases, and gene expression profiling of NE-affected tissues, the microRNA (miRNA) profiles of NE-affected poultry have been poorly studied. The aim of this study was to induce NE disease in the genetically disparate Fayoumi chicken lines, and to perf...
Nicarbazin (NCZ), a coccidiostat commonly used in the poultry industry, causes reduced hatchability and egg quality in layer hens at a concentration of 125 ppm (8.4 mg/kg) in the feed. Although this effect is undesirable in the poultry industry, NCZ could provide a useful wildlife contraception tool for waterfowl, particularly urban geese. We tested the absorption of NCZ in chickens (Gallus gal...
The pathogenicity of a fowl adenovirus serotype-1 (FAdV-1, K181 strain) isolated from a case of gizzard erosion in layer chickens was investigated in specific-pathogen-free (SPF) chicks. One-week-old SPF chicks were inoculated orally or intramuscularly with the isolate of FAdV-1 and euthanized for necropsy at 7, 14, and 21 d postinoculation. Although there were no clinical signs after inoculati...
This study was aimed to obtain the growth curve of body weight in male layer chickens (Lohman MB 202) based on Logistic and Gompertz models. The frequently data from one day age adult were used for prediction. Total thousand birds private sector poultry farm Tasikmalaya Regency, Indonesia this as source. estimation calculated (L) (G) models using Curve Expert 1.4. computer program.The final (as...
An avian leukosis virus with a wide host range belonging to a new subgroup for chickens was isolated from meat-type chicken lines. The virus, of which HPRS-103 strain is the prototype, was of low oncogenicity in chickens but appeared to behave like an exogenous leukosis virus. Neutralizing antibodies to the virus were found in three of five meat-type chicken lines, but not in seven layer lines....
An experiment was carried out on myostatin gene with the objectives of identification of polymorphism in the myostatin gene and estimation of the effect of polymorphism on growth traits in chickens. Single-stranded conformation polymorphism followed by sequencing was performed to reveal polymorphism of the gene. A total of 13 haplotypes were observed across 3 chicken lines (PB-1 and CB as broil...
The present study was carried out in commercial layer chickens to assess the bacteriostatic potency of egg yolk immunoglobulin IgY against food poisoning pathogen. The O antigen of food poisoning pathogen Escherichia coli was prepared and used to immunize commercial layer chickens. The eggs which contain antiE.Coli IgY was collected on 30 th day of first injection and stored at 4 0 C. The antib...
This experiment was conducted to evaluate the effect of feed withdrawal (F) and heat acclimatization (A) on malebroiler and -layer chickens responses to acute heat stress (AHS) at four weeks of age. Totals of ninety male chicks of broiler or layer type were randomly allocated into 30 pens of grower batteries with raised wire floors. Chicks were subjected to F and A three times a week through th...
This study compared the anaesthetic effects of intramuscular injection of Ketamine (K) (15 mg/kg) with intramuscular injection of Ketamine (K) (15 mg/kg) and Lignocaine (L) (4 mg/kg) infiltration for laparocaecectomy in 12 layer chickens (1.1±0.06 Kg) randomized into two groups (K, 5 chickens and KL, 7 chickens). The duration of recumbency of the K-L group (100.3±16.4 min) was significantly lon...
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