Performance and Humoral Immune Response in Heat-Stressed Broilers Fed an Ascorbic Acid Supplemented Diet

Tuekam, T. D.; Miles, R. D.; Butcher, Gary D.

doi:10.1080/09712119.1994.9706034

Cited by 11 publications

(3 citation statements)

References 11 publications

(10 reference statements)

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“…This high GMHI titer was probably due to supplementation of ascorbic acid and acetylsalicylic acid. Our this finding was similar with Tuekam et al (1994), who reported that there was a positive correlation between antibody titer and ascorbic acid supplementation. On day 28, the mean value of BBWR of group B, which was exposed to heat stress, was significantly decreased from group A which was not exposed to heat stress.…”

Section: Resultssupporting

confidence: 91%

Effect of Ascorbic Acid and Acetylsalicylic Acid Supplementation on Performance of Broiler Chicks Exposed to Heat Stress

Naseem¹,

Younus²,

Anwar³

et al. 2005

International J. of Poultry Science

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A total of 100, day-old broiler chickens were randomly divided into 5 groups and kept under elevated temperature (34-36EC) to see the effect of ascorbic acid and acetylsalicylic acid (Sb-Asper-C, a commercial product) on the feed conversion ratio (FCR), immune status and ratio of weight of bursa, thymus and spleen to body weight. Heat stress increased the FCR but decreased the immune response and ratio of bursa, thymus and spleen to body weight of the birds. Ascorbic acid and acetylsalicylic acid supplementation during heat stress had beneficial effects on FCR, immune status and ratio of weight of bursa, thymus and spleen to body weight of the birds. Grossly, bursa thymus and spleen of heat stressed birds were atrophied but ascorbic acid and acetylsalicylic acid supplemented birds were not atrophied, No specific histopathological changes were observed in all groups.

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Section: Resultssupporting

confidence: 91%

Effect of Ascorbic Acid and Acetylsalicylic Acid Supplementation on Performance of Broiler Chicks Exposed to Heat Stress

Naseem¹,

Younus²,

Anwar³

et al. 2005

International J. of Poultry Science

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“…The ND titers were significantly influenced at 14 th day of measurement by VC supplementation at 20 mg/kg VC-PEG level. The results are in agreement with that of Tuekam et al (1994) who found increased antibody titers to IB vaccine in chickens fed 500 mg/kg VC. Similar response of increased antibody response of chickens to sheep red blood cells and infectious bursal disease at 1000 ppm supplementation was also noted by Pardue et al (1985) and Amakye-Anim et al (2000).…”

Section: Resultssupporting

confidence: 82%

The effects of vitamin C-polyethylene glycol complex on growth performance and immunity in broiler chickens

Hahn¹,

Lohakare²,

Shim³

et al. 2005

J. Anim. Feed Sci.

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This research was conducted to evaluate the efficacy of vitamin C-polyethylene glycol complex (VC-PEG) in broiler chickens during heat stress. For a 6-week feeding trial, a total of 330 broiler chickens were allotted to five dietary treatments. The dietary vitamin C (VC) levels (treatments) were, mg/kg: 1. 0 VC (negative control), 2. 200 VC as ascorbate (positive control), 3. 10 VC-PEG, 4. 20 VC-PEG, and 5. 50 VC-PEG. At the end of the experiments nine chickens per treatment were sacrificed for the analyses of VC contents in blood and liver, and meat quality. During the starter period, chickens on negative control group (no VC added) grew slower (P<0.05) than others. During the overall period, chickens fed diets containing 20, 50 mg/kg VC-PEG, and 200 mg/kg ascorbate showed improved weight gain (P<0.05) than those fed 0 or 10 mg/kg VC-PEG. VC concentrations in plasma and liver were higher in chickens fed diets with vitamin C. Bone strength was also higher (linear, P=0.001) as dietary VC level was increased. There was no effect on lymphocyte sub-population. Antibody response to Newcastle disease and infectious bronchitis vaccination was higher in 20 mg/kg VC-PEG fed group as compared with other VC-PEG groups. In conclusion, VC supplementation was beneficial to broilers during heat stress.

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“…C. The findings are in congruence with those of Savic et al, (1993) that heat stress reduces immune response. Tuekam et al (1994) also reported that there was a positive correlation between antibody titer and ascorbic acid supplementation. The reduced mean delayed hypersensitivity (DTH) response after 72 hrs in control birds in comparison to treated ones could be due to decreased immune function in heat stress and these findings are in agreement with that of Murray et al, (1988), where increase in corticosterone level and decrease in the antibody titer to the vaccines given to the bird was reported during heat stress.…”

Section: Discussionmentioning

confidence: 94%

Amelioration of oxidative stress in broilers during summer

Sujatha¹,

Korde²,

Rastogi³

et al. 2010

BIOTEC ANIM HUSB

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A comparative study on antistressor and antioxidative effects of synthetic vitamin C and polyherbal feed premix Ayucee supplementation in broilers was conducted during the summer months of June-July when the mean temperature-humidity index was 84.74?2.51. Day old broiler chicks (n =60) were randomly divided into three groups. Control group I was given basal diet and treatment groups (II&III) were supplemented with Synthetic vitamin C (100g/tonne of feed) and Ayucee (100g/tonne of feed) from day 0 to six weeks of age. Biochemical parameters were analysed after 3rd & 5th week & erythrocytic antioxidant enzymes were analysed after 3rd & 6th week of experiment. Hormonal & immunological parameters were analysed after 6th of experimental study. After 3rd week, mean plasma glucose, cholesterol & antioxidant enzyme glutathione reductase (GSSG) were significantly (P? 0.01) lower in treated groups (II & III) than control (I); however total protein, albumin to globulin ratio & antioxidant enzyme superoxide dismutase (SOD) were significantly (P? 0.05) different in group II & III compared to group I. After 5th week, mean plasma glucose, total protein, albumin globulin ratio were significantly (P? 0.05) different in both the treatments compared to control. Erythrocytic GSSG were significantly (P? 0.05) different in both the treatments than control, as observed after 6th week. Stress hormones namely cortisol & thyroxine (T4) were observed to be significantly (P?0.05) higher in untreated control than the treated groups. However, the two treatments did not differ significantly. Mean total immunoglobulin (Ig) level was significantly (P?0.01) higher in AYUCEE & vit-C treated birds than control after 6th week of study. It can be concluded from the results that oxidative stress in broilers during summer could be ameliorated using antioxidant synthetic vitamin C & the polyherbal antistressor, immunomodulator & adaptogenic feed premix AYUCEE.

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Performance and Humoral Immune Response in Heat-Stressed Broilers Fed an Ascorbic Acid Supplemented Diet

Cited by 11 publications

References 11 publications

Effect of Ascorbic Acid and Acetylsalicylic Acid Supplementation on Performance of Broiler Chicks Exposed to Heat Stress

Effect of Ascorbic Acid and Acetylsalicylic Acid Supplementation on Performance of Broiler Chicks Exposed to Heat Stress

The effects of vitamin C-polyethylene glycol complex on growth performance and immunity in broiler chickens

Amelioration of oxidative stress in broilers during summer

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