Impact of Naked Neck (Na) and Frizzle (F) Genes on Growth Performance and Immunocompetence in Chickens

Body Resistance and Productive Performances of Crossbred Local Chicken Fed Inulin of Dahlia Tubers

“…It was suggested that the inulin treatment was able to increase the bird's stamina as responses to the change in environment condition, especially when they were reared in the open house system. Bursa fabricius is a primary lymphoid organ functions as humoral antibody that responsible for the development and maturation of B-lymphocytes, and it will give response when the foreign substances or antigens interfere with the body (Zhang et al, 2006;Cheema et al, 2007;Mahrous et al, 2008), which then circulate into the bloodstream and react against foreign substances that enter the body. The H/L ratio is closely related to the bursa fabricius's function because this organ is lymphocyte-forming place and exerts the principle function in the body's immune system to prevent stress response due to unfavorable environment (Apriliyani et al, 2013).…”

Antibody response to goat erythrocytes in endangered Nicobari fowl, Vanaraja and their various F1 and F2 crosses under the hot humid climate of Andaman and Nicobar Islands, India

“…Msoffe et al (2001) reported variation in immunocompetence in scavenging local chicken ecotypes in Tanzania. Naked Neck, Frizzled genes in a single state or in combination significantly increased the immune response of chickens in the local environment of Egypt (Mahrous et al 2008). Fathi et al (2008) reported an increase in concentrations of antibodies after injection of SRBC into Naked Neck birds particularly at day 14 post-secondary injections.…”

Growth rates of main and reciprocal crosses of Isa Brown and local chickens

“…This indicates that frizzle and naked neck genes may confer faster growth rate to chickens. This advantage has been utilized in the development of fast growing and heavy chickens in hot environment (Patra et al, 2002;Mahrous et al, 2008). The instantaneous relative growth rates of the chickens obtained in Table 2 indicated their rate of growth at any point in time.…”