نتایج جستجو برای: commercial chickens
تعداد نتایج: 159211 فیلتر نتایج به سال:
In vitro and in vivo experiments were designed to evaluate the effectiveness of laboratory-made di-d-fructose dianhydride (DFA)-enriched caramels. The DFA-enriched caramels were obtained from d-fructose (FC), d-fructose and sucrose (FSC), or d-fructose and β-cyclodextrin (FCDC). In the in vitro experiment, raftilose and all caramels increased (P<0.05) l-lactate concentration and decreased (P<0....
The main objective of this study was to examine the diversity of meat quality traits among 5 chicken genotypes. The genotypes included 2 Chinese native breeds (Wenchang,WCH, and Xianju), 1 commercial broiler line (Avian, AV), 1 commercial layer line (Hy-Line Brown, HLB), and 1 Chinese commercial broiler line (Lingnanhuang, LNH) synthesized by exotic and native breeds, which were slaughtered at ...
The influence of genetic background versus commercial breeding programs on chicken immunocompetence.
Immunocompetence of livestock plays an important role in farm profitability because it directly affects health maintenance. Genetics significantly influences the immune system, and the genotypic structure of modern fast-growing chickens has been changed, particularly after decades of breeding for higher production. Therefore, this study was designed to help determine if intensive breeding progr...
An “In house” PCR method was compared with three commercial PCR kits for the detection of Mycoplasma gallisepticum (MG) in cultures grown in a modified Frey broth or agar, in vaccines, as well as in tracheal swabs of SPF chickens infected experimentally. The studied methods showed different specificity (poor specificity of commercial A test) and sensitivity. The “in house” method appeared to be...
A Newcastle disease virus (NDV) isolate designated IBS002 was isolated from a commercial broiler farm in Malaysia. The virus was characterised as a virulent strain based on the multiple basic amino acid motif of the fusion (F) cleavage site (112)RRRKGF(117) and length of the C-terminus extension of the hemagglutinin-neuraminidase (HN) gene. Furthermore, IBS002 was classified as a velogenic NDV ...
nucleocapsid (n) protein of infectious bronchitis virus (ibv), one of the viral structural proteins, inducesstrong antibody response in natural infection. in this study, a simple, recombinant n protein-based dot-blottest was developed to serologically examine chicken serum samples for the presence of ibv antibody.initially, 72 serum samples were tested for the presence of ibv antibody using a c...
The objective of the study was to compare the carcass characteristics, meat quality, and blood parameters of slow and fast grown female broiler chickens fed in organic or conventional production system. The two genotypes tested were medium slow-growing chickens (SG, Hubbard Red JA) and commercial fast-growing chickens (FG, Ross 308). Both genotypes (each represented by 400 chickens) were divide...
Barley consumption is limited in broiler chicken diet due to their β. glucanas polysaccharide content. The application of synthetic enzymes in poultry diet can increase the barley content. The purpose of this experiment is to study the effect of enzyme supplement-β-glucanas on the performance of broiler chickens, percentage of abdominal fat, intestine weight and economic evaluation of productio...
Ascites syndrome (AS) causes major economic losses in commercial meat-type chickens. The objectives of the current study were to select best non-linear growth curve functions (GCFs) ascitic and healthy chickens, investigate association ascites incidence with pattern. A total 5584 body weight (BW) records belonging 823 chickens (381 male 442 female) from a paternal pure Arian broiler line used. ...
AIM The present study was conducted to evaluate the dietary addition of Emblica officinalis (Amla) fruit powder as a growth promoter in commercial broiler chickens. MATERIALS AND METHODS An experiment was conducted on 135 commercial broiler chicks (Ven-Cobb 400 strain) divided into three groups with three replicates of 15 chicks each. Three treatment groups were as follows - T1: Basal diet as...
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