scholarly journals Effect of breeder age and lighting regimen on growth performance, organ weights, villus development, and bursa of fabricius histological structure in broiler chickens

2016 ◽  
Vol 60 (No. 3) ◽  
pp. 116-122 ◽  
Author(s):  
M.I. El Sabry ◽  
S. Yalçin ◽  
G. Turgay-İzzetoğlu
Keyword(s):  
Growth Performance ◽  
Broiler Chickens ◽  
Bursa Of Fabricius ◽  
Histological Structure ◽  
Organ Weights ◽  
Lighting Regimen

scholarly journals Supplementation of probiotics in water beneficial growth performance, carcass traits, immune function, and antioxidant capacity in broiler chickens

2021 ◽  
Vol 16 (1) ◽  
pp. 311-322
Author(s):  
Lihuan Zhang ◽  
Ruonan Zhang ◽  
Hao Jia ◽  
Zhiwei Zhu ◽  
Huifeng Li ◽  
...  
Keyword(s):  
Antioxidant Capacity ◽  
Immune Function ◽  
Growth Performance ◽  
Broiler Chickens ◽  
Carcass Traits ◽  
Basal Diet ◽  
Bursa Of Fabricius ◽  
Daily Weight Gain ◽  
Broiler Chicks ◽  
Feed Conversion

Abstract This study aims to investigate the effects of commercial probiotic supplementation in water on the performance parameters, carcass traits, immune function, and antioxidant capacity of broiler chicks. In the experiment, 120 Arbor Acres (AA) broilers (60 male and 60 female) were randomly allocated into four groups (G) – G1: basal diet and G2, G3, and G4: basal diet with 1% Lactobacillus casei, 1% L. acidophilus, and 1% Bifidobacterium in the water, lasting 42 days. The experimental results revealed that probiotic additives produced positive impacts on body weight, average daily feed intake (ADFI), and average daily weight gain for female chicks, whereas these probiotics significantly reduced ADFI and the feed conversion ratio of male chicks (P < 0.05). Probiotics efficiently improved eviscerated yield and breast yield while reducing the abdominal fat (P < 0.05) for the male broiler chicks. A marked increase was observed in the weight of the spleen, bursa of Fabricius, and thymus in the treatment group (P < 0.05). Besides, probiotics produced a significant effect on the concentrations of immune-related proteins (P < 0.05) and markedly increased the concentrations of antioxidase and digestive enzymes when compared with the control (P < 0.05). The addition of probiotics dramatically reduced the total counts of Escherichia coli and Salmonella and increased the quantity of Lactobacilli (P < 0.05). The results of the present study demonstrated an increase in growth performance, carcass traits, immune function, gut microbial population, and antioxidant capacity by supplementing 1% probiotics (L. casei, L. acidophilus, and Bifidobacterium) in the water for broilers.

scholarly journals The influence of long term sound stress on histological structure of immune organs in broiler chickens

2010 ◽  
pp. 151-159 ◽  
Author(s):  
Dragan Zikic ◽  
Gordana Uscebrka ◽  
Dusan Gledic ◽  
Miodrag Lazarevic
Keyword(s):  
Broiler Chickens ◽  
The Other ◽  
Bursa Of Fabricius ◽  
Histological Structure ◽  
Histological Changes ◽  
Immune Organs

The aim of this paper was to examine the effect of different duration sound stress on immune organs of broiler chickens of different age. Nine groups, with 10 chickens in each group were included in experiment. The histological structure of bursa of Fabricius, thymus, and spleen were analyzed. The results indicated that the bursa of Fabricius, in relation to the other examined organs, was the most sensitive to this kind of stress. Histological changes of spleen and thymus were also observed, but less prominent except in chickens after more than 30 days of exposure to stress. According to our results, degree of histological changes of immune organs under the influence of sound stress depends on the length of exposure and age of chickens.

scholarly journals Influence of Selenium on the Morphology of Immune System Organs in Healthy Broilers

2019 ◽  
Vol 69 (4) ◽  
pp. 379-390 ◽  
Author(s):  
Malgorzata Korzeniowska ◽  
Jan P. Madej ◽  
Tadeusz Stefaniak ◽  
Wieslaw Kopec
Keyword(s):  
Immune System ◽  
Broiler Chickens ◽  
Relative Weight ◽  
Feed Additives ◽  
Lymphoid Cells ◽  
Bursa Of Fabricius ◽  
Histological Structure ◽  
Organic Selenium ◽  
Inorganic Selenium ◽  
Partial Depletion

Abstract This study aimed to establish the effect of dietary supplementation in broiler chickens of organic and inorganic selenium on the weight and structure of the thymus, bursa of Fabricius and spleen. Three dietary regimes were studied in Flex and F15 Hubbard chickens: (i) control, (ii) diets containing 0.5 mg organic selenium/kg by selenized yeast, (iii) diets supplemented with 0.5 mg ionic selenium/kg (sodium selenite). The results showed that the feed additives did not affect the relative weight of the immune system organs, i.e. bursa of Fabricius, thymus and spleen. The organic selenium in the F15 resulted in thinning of the thymic cortex and partial depletion of the lymphoid cells. Moreover, both the organic and inorganic selenium supplementation resulted in depopulation of bursal medulla from lymphocytes in the F15 group. In contrast, in Flex chickens no significant differences in histological structure and morphometric values of lymphoid organs between chickens fed organic and inorganic selenium were found.

scholarly journals Tissue distribution of B-lymphocyte subsets (IgA, IgG and IgM) in the mucosa and lymphoid tissues of broilers immunized with Gumboro vaccine

2014 ◽  
Vol 11 (1) ◽  
pp. 13-19
Author(s):  
MT Hussan ◽  
MZI Khan ◽  
MR Jahan
Keyword(s):  
Lamina Propria ◽  
Broiler Chickens ◽  
B Lymphocyte ◽  
Lymphocyte Subsets ◽  
Bursa Of Fabricius ◽  
Histological Structure ◽  
Lymphoid Tissues ◽  
The Core ◽  
Cecal Tonsil ◽  
Intestinal Gland

The present research was designed to study the histological and immunohistochemical changes of lymphoid organs (bursa of Fabricius and cecal tonsil) and in the ileum (representative mucosal organ) of broiler chickens after immunization with Gumboro vaccine. Two groups (n=24) of Cobb-500 broiler chickens were reared in a same environment A mild vaccine (BUR® 706) followed by a intermediate (Nobilis® Gumboro 228 E) type vaccine was administered for immunization of chickens and samples were collected at 7 days interval for up to 32 days of age. The conventional histological structure of all three organs of the present study was similar to the earlier reports. In addition, in the bursa of Fabricius, the population of lymphocytes and the size of the follicles were found to increase in vaccinated chickens than the control chickens. The Igs positive cells (IgA, IgG and IgM) were distributed principally beneath the capsule, around the follicles and in the cortex and medulla. The frequencies of IgG- and IgM- positive cells were more than the IgA-positive cells in the bursa of vaccinated group. IgM-positive cells became peak at day 25 and started to decline at day 32 in the bursa of Fabricius of vaccinated groups of chickens. In the cecal tonsils and ileum, the Igs positive cells (IgA, IgG and IgM) distributed around the intestinal gland and within the lymphatic nodules of the lamina propria, in the core of the villi, and within the epithelium in both the control and vaccinated chickens. Their frequency per 0.1 mm2 area of the lamina propria and in the epithelium was increased abruptly in the vaccinated group than the control broiler chickens. Like bursa, in the cecal tonsil and ileum of vaccinated chickens, the frequencies of IgG- and IgM-positive cells were also more than IgA-positive cells. The present study suggested that, the Igs positive cells were greatly accelerated in the vaccinated chickens than the control chickens and it may be due to immunomodulatory effect of vaccine.DOI: http://dx.doi.org/10.3329/bjvm.v11i1.14154Bangl. J. Vet. Med. (2013). 11 (1): 13-19

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