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Assessment of acquired immune response to Rhipicephalus appendiculatus tick infestation in different goat breeds

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Authors

Gopalraj, Jeyanthi B.P.
Clarke, Francoise C.
Donkin, Edward Francis

Journal Title

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Publisher

AOSIS Open Journals

Abstract

Changes in serum gamma globulin levels, numbers of replete female ticks and engorged tick mass were used as parameters to monitor the acquired immune response (antibody mediated immune response) elicited by Rhipicephalus appendiculatus adult tick infestations. Three consecutive Rhipicephalus appendiculatus adult tick infestations were applied to South African Indigenous goats (Nguni), Saanen goats and cross-bred goats (Saanen goats crossed with South African Indigenous goats [Nguni]) under laboratory conditions. During the three consecutive Rhipicephalus appendiculatus adult tick infestations the serum gamma globulin levels increased in all three breeds, whilst the mean replete female tick numbers and engorged tick mass decreased. Even though all three goat breeds exhibited an acquired immune response, the South African Indigenous goats (Nguni) response was significantly higher than that of the Saanen and cross-bred goats. However, the acquired immune response elicited by Saanen goats was significantly lower when compared with cross-bred goats.

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Keywords

Goat breeds, Acquired immune response, Rhipicephalus appendiculatus adult tick infestations, South African Indigenous goats (Nguni)

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Citation

Gopalraj, J.B.P., Clarke, F.C. & Donkin, E.F., 2013, 'Assessment of acquired immune response to Rhipicephalus appendiculatus tick infestation in different goat breeds', Onderstepoort Journal of Veterinary Research 80(1), Art. #614, 5 pages. http://dx.DOI.org/ 10.4102/ojvr.v80i1.614