Study on productive performance, hematological and immunological parameters in a local strain of chicken as affected by mannan oligosaccharide under hot climate conditions
Abstract: The experiment was conducted to study productive performance, hematological and immunological parameters in a local strain of chicken as affected by mannan under hot climate conditions. A total of 200 females and 40 males of Mandarah chickens at 20 weeks of age were randomly assigned in individual cages at four equal groups (50 females and 10 males in each group). Females and males were fed on a basal diets supplemented with 0.0, 0.05, 0.l or 0.2% mannan oligosaccharide (MOS) for 12 weeks during the summer season. Supplementation of 0.2 % MOS in laying hens diet caused a significant (P<0.05) increase in body weight. Egg production percentage was significantly increased (P<0.05) with the different levels of MOS supplementations, whereas, feed intake and egg weight were not significantly affected. Moreover, in cocks, body weight and feed intake were higher (P<0.05) in treated groups compared with the control group. Egg quality was not affected by MOS inclusion in the diet except egg shell thickness was significantly (P<0.05) increased compared with the control group. Ejaculate volume, advanced motility (%) and alive sperm (%) were significantly (P<0.05) increased by addition of different levels of MOS in the diet, whereas, medium and high levels of MOS were significantly (P<0.05) increased sperm concentration compared with the other groups. Also, fertility and hatchability percentages were significantly (P<0.05) increased by MOS supplementation. Levels of hemoglobin, RBC's, WBC's, serum total protein, albumin, globulin and calcium concentrations were higher (P<0.05) in treated hens. While, serum GOT and GPT were not influenced by dietary treatment. Addition of MOS at 0.1 and 0.2 % in cocks diet caused significant increase (P<0.05) in hemoglobin, RBC's and WBC's compared with those in the other groups. In Mandarah chickens, antibody responses against infectious bursal disease virus (IBDV), serum IgG, IgM and IgA were increased (P<0.05) in MOS treated groups compared with the control group. Relative weight of spleen was significantly (P<0.05) increased for hens fed high level (0.2%) of MOS, while, this increase was observed in males fed medium and high levels of MOS compared with other groups. Furthermore, relative weight of thymus gland was increased (P<0.05) in the MOS groups in Mandarah chickens. Whereas, no significant effect was observed in relative weights of testes and ovary in all groups.
In conclusion MOS supplementation in the diets could improve productive performance, hematological immunological parameters in Mandarah local chickens during summer season.
Publication year 2009
Pages 287-305
Availability location معهد بحوث الانتاج الحيوانى- شارع نادى الصيد- الدقى- الجيزة
Availability number
Organization Name
City الاسكندرية
serial title Egyptian Poultry Science
ISSN 1110-5623
Author(s) from ARC
Agris Categories Animal physiology - Nutrition
AGROVOC
TERMS		 Blood. Body weight. Chickens. Cocks. Egg production. Feed intake. Females. Immunology. Males. Mannans. Warm season.
Proposed Agrovoc productive performance;immunological parameters;Egg quality;
Publication Type Journal
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