EXPERIMENTAL IMMUNOLOGY
Humoral responses of broiler chickens challenged with NDV following supplemental treatment with extracts of Aloe vera, Alma millsoni, Ganoderma lucidum and Archachatina marginata
Submission date: 2015-01-21
Final revision date: 2015-04-08
Acceptance date: 2015-04-13
Publication date: 2015-10-15
Cent Eur J Immunol 2015;40(3):300-306
KEYWORDS
ABSTRACT
Aim of the study: The significance of nutritional supplements for immunity has been documented. Locally sourced extracts used in alternative medicine were studied to determine their potential effects on antibody production and humoral responses in viral challenged birds.
Method: Three hundred and eighty birds were distributed into 19 groups of 20 birds each. Following acclimatization for 16 days, they were fed with standard broilers feed and water ad libitum. Group A was supplemented with Aloe vera (AV) extract, group B was given Alma millsoni (AM) extract, group C was given Archachatina marginata (AMS) extract and group D was given Ganoderma lucidum (GL) extract, and group E was the control group. Extract concentrations of 50 mg, 100 mg and 150 mg were given to three subsets of each treatment group for 30 days. Birds were then challenged with intramuscular administration of 0.2 ml of 50% Embryo Lethal Dose of saline suspension of the challenge strain of Newcastle Disease Virus (NDV) on the 30th day, and were examined for clinical signs and symptoms. Serum from venous blood was used for antibody and immunological assay.
Results: Aloe vera at 50 µg and A. millsoni extracts supplementations yielded a significant antibody titre (p < 0.001). The difference within the AMS, GL and AV groups and the control group was not statistically significant (p < 0.05).
Conclusion: Unlike the extract of Ganoderma and A. marginata, pretreatment with A. millsoni extract and a lower dosage of Aloe vera enhanced the ability to mount humoral responses against viral infection in broiler chickens.
Method: Three hundred and eighty birds were distributed into 19 groups of 20 birds each. Following acclimatization for 16 days, they were fed with standard broilers feed and water ad libitum. Group A was supplemented with Aloe vera (AV) extract, group B was given Alma millsoni (AM) extract, group C was given Archachatina marginata (AMS) extract and group D was given Ganoderma lucidum (GL) extract, and group E was the control group. Extract concentrations of 50 mg, 100 mg and 150 mg were given to three subsets of each treatment group for 30 days. Birds were then challenged with intramuscular administration of 0.2 ml of 50% Embryo Lethal Dose of saline suspension of the challenge strain of Newcastle Disease Virus (NDV) on the 30th day, and were examined for clinical signs and symptoms. Serum from venous blood was used for antibody and immunological assay.
Results: Aloe vera at 50 µg and A. millsoni extracts supplementations yielded a significant antibody titre (p < 0.001). The difference within the AMS, GL and AV groups and the control group was not statistically significant (p < 0.05).
Conclusion: Unlike the extract of Ganoderma and A. marginata, pretreatment with A. millsoni extract and a lower dosage of Aloe vera enhanced the ability to mount humoral responses against viral infection in broiler chickens.
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| eISSN: | 1644-4124 |
| ISSN: | 1426-3912 |
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