نتایج جستجو برای: fowl
تعداد نتایج: 3432 فیلتر نتایج به سال:
Pullorum disease of chickens is a bacterial infection caused by Salmonella enterica subspecies enterica serovar Gallinarum biovar Pullorum (Salmonella Pullorum)1. At this time the serovar is referred to as Gallinarum in some parts of the world and Pullorum in others; in this chapter the serovar will be referred to as Gallinarum or Pullorum according to the biovar under discussion as this is mor...
We describe a genetic variation map for the chicken genome containing 2.8 million single-nucleotide polymorphisms (SNPs). This map is based on a comparison of the sequences of three domestic chicken breeds (a broiler, a layer and a Chinese silkie) with that of their wild ancestor, red jungle fowl. Subsequent experiments indicate that at least 90% of the variant sites are true SNPs, and at least...
The present work aimed at studying growth pattern and carcass traits in pearl grey guinea fowl fed on dietary Neem (Azadirachta indica) leaf powder (NLP) over a period of 12 weeks. Day old guinea fowl keets (n=120) were randomly assigned to four treatment groups, each with 3 replicates. The first treatment was designated as control (T0) in which no supplement was added to the feed, while in tre...
Two outbreaks of fowl cholera on a multi-age free range egg farm were investigated. The outbreaks occurred in 1994 and 2002. A total of 22 strains of P. multocida were available for study – 11 from the 1994 outbreak and 11 from the 2002 outbreak. Lesions typical of acute fowl cholera were seen in the 1994 outbreak, whereas both acute and chronic FC occurred in the 2002 outbreak. The isolates we...
OBJECTIVE To determine the biochemical changes in articular cartilage composition associated with the development of avian degenerative joint disease (DJD) in ad libitum fed broiler fowl, in comparison to feed-restricted broilers and J-lin fowl (non-susceptible to DJD). METHODS Articular cartilage from the distal tibiotarsus (DTT) was characterised up to age 180 days. Proteoglycan content was...
Poultry are commonly infected with a wide variety of salmonella serovars and infection is generally subclinical (Wray et al., 1996). Poultry farming is often hampered by reduction in productivity due to infections with large number of bacteria, salmonellosis being the most important causing great economic losses due to mortality and reduction in egg production (Khan et al., 1998). Under the new...
Normal metabolism Like the mammal, the fowl utilizes fat as its main energy store, taking advantage of the high energy value of fat compared with that of carbohydrate or protein, and its low water content. The lipids present in these species are similar in nature and composition and there appear to be no gross differences in the pathways by which they are metabolized or in the biochemical mecha...
Biochemical and serological studies were conducted on 73 Pasteurella multocida isolants associated with fowl cholera, 13 from waterfowl, 19 from free-flying birds other than waterfowl, 18 from chickens, 5 from turkeys, and 18 from White Pekin ducks. Three serotypes (1, 3, and 7) were associated with waterfowl, four (1, 3, 6, and 8) with free-flying birds, three (1, 3, and 4) with chickens, one ...
Inflammation is frequent at the site of injection in turkeys vaccinated with various commercial fowl cholera bacterins. Seven commercial and three laboratory bacterins were compared in 12week-old turkeys as to extent and severity of irritation with 3 routes of injection: subcutaneous, intradermal, and intramuscular. Commercial fowl cholera bacterins, particularly those with paraffin oil as the ...
IN a recent communication, Dr F. A. E. Crew described one case of complete sex reversal in the domestic fowl and seven others showing different stages in this process. The whole formed a consistent series which demonstrated the fact that an individual which had previously functioned as an active female producing eggs can on occasion undergo a complete sex transformation and come to function as ...
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