We have separated four cathepsins (B, L, N and S) from rabbit spleen. They are all collagen-degrading cysteine proteinases, with Mr values of 25,250, 23,500, 34,000 and 30,000 for cathepsin B, L, N and S respectively. Cathepsins B, N and S have isoelectric points of 5.4, 6.2 and 6.8 respectively, whereas cathepsin L exhibited multiple charge forms in the range 5.0-5.7. A comparison of their spe...

The aim of the present study was to investigate the potential use of re-esterified oils, differing in their degree of saturation and molecular structure, in comparison with their corresponding acid and native oils in broiler chicken diets. For this purpose, 144 one-d-old female broiler chickens were randomly distributed in 48 cages. Birds were fed a basal diet supplemented with 6% of native pal...

Abstract Papaya ( Carica papaya ) seeds together with squash Cucurbita moschata was pelleted to be used as dewormer, determine its antihelmintic effects on growing chicken. They were randomly divided into four treatments and replication five birds per treatment assigned using Randomized Complete Block Design (RCBD), a total of eighty native chickens. The were: Treatment A - Control (commercial ...

marek's disease (md) is a common lymphoproliferative disease of chickens, usually characterized by mononuclear cellular infiltration in different organs. the disease is caused by a herpes virus and is transmissible. md has been a common, important problem for poultry industry worldwide, as well as, in our country, iran. the aim of present study was to have an estimation of the incidence of...

this study was conducted to investigate performance of native chickens produced in the centre of production and breeding of native chicken of isfahan in rural areas of isfahan province by using 1440 native pullets with age of 45 days in 4 towns and 2 climate zone of warm and cold. this study employed by coworking 60 rural families that 24 pullets with age of 45 days with ratio of 5 hen to 1 roo...

Unique organoleptic characteristics such as rich flavors and chewy texture contribute to the higher popularity of native chicken in many Asian areas, while the commercial broilers are well-accepted due to their fast-growing and higher yields of meat. Sensory attributes of foods are often used to evaluate food eating quality and serve as references during the selection of foods. In this study, a...

The orientation of the enzyme Mg(2+)-ATPase (EC 3.6.1.3) in the transverse tubule (TT) membranes of skeletal muscle was investigated using highly purified chicken and rabbit TT vesicles. The percentage of sealed vesicles present in these preparations averaged 88 and 78%, respectively, as calculated from the detergent-induced increase in ouabain-sensitive (Na+, K+)-ATPase activity, ATP-dependent...

A crystal structure of human fibrinogen has been determined at approximately 3.3 A resolution. The protein was purified from human blood plasma, first by a cold ethanol precipitation procedure and then by stepwise chromatography on DEAE-cellulose. A product was obtained that was homogeneous on SDS-polyacrylamide gels. Nonetheless, when individual crystals used for X-ray diffraction were examine...

We combined two protein-marking enzyme-linked immunosorbent assays (ELISA) with a predator gut content ELISA to monitor the movement and feeding activity of commercially-purchased Hippodamia convergens Guèrin-Mèneville (Coleoptera: Coccinellidae) under realistic field conditions during two field seasons in central Arizona. The proteinmarking ELISAs were used to differentiate released H. converg...

A study has been directed towards a better understanding how the Aseel, Kadaknath and White Leghorn immune system responds to multi-determinant antigen, sheep red blood cells. In contemporary commercial poultry production myriad of Viral and bacterial diseases being lingering menace to poultry industry and retort to prevent and control them are needed due to enormous production losses. Our rese...