EFFECTS OF AGE, SEX, AND BODY CONDITION ON ECTOPARASITIC INSECT INFESTATION IN DOMESTIC GOATS
DOI:
https://doi.org/10.15547/tjs.2025.01.003Keywords:
goats, lice, fleas, body condition, age, sexAbstract
PURPOSE: This study aimed to investigate the influence of sex, age, and body condition on the prevalence and intensity of ectoparasitic infestations in goats, focusing on lice and fleas, and to identify significant associations between these factors. METHODS: The study was conducted on 4,599 goats examined between May 2018 and November 2019. The animals were classified by sex, age (young < 2 years; adult ≥ 2 years), and body condition (good, fair, or poor). Ectoparasites were collected and identified in the laboratory, and infestation intensity (II) and degree of infestation (DI) were assessed. Statistical analyses were performed using the χ² test and Cramer's V coefficient. RESULTS: Four ectoparasitic species were identified: Linognathus stenopsis Burmeister, 1838, Linognathus africanus Kellog & Paine, 1911, Bovicola caprae Gurlt, 1843, and Pulex irritans Linnaeus, 1758. Female goats showed significantly higher infestation rates than males, with hormonal and physiological factors being potential contributors. Young goats were more frequently and heavily infested than adults, possibly due to their weaker immune systems and delicate skin. Animals in poor body condition had the highest infestation rates across all ectoparasites, with Linognathus lice showing the strongest association with body condition. CONCLUSIONS: The study demonstrated that body condition had the most significant impact on ectoparasitic infestations in goats, followed by age and sex. Maintaining good body condition and implementing effective management practices are crucial to reducing ectoparasitic burdens in goats. Further research is recommended to explore the mechanisms underlying these findings.
References
Wall, R. and Shearer, D., Veterinary Ectoparasites. Biol., Pathol. and cont., 162-178, 2001.
Slavova, S., Profitability of dairy goat farms in Bulgaria. Agric. sci. Technol. 16 (3): 72-79, 2024
Devendra, C., Small ruminants in Asia; Contribution to food security, poverty alleviation and opportunities for productivity enhancement." Proceeding of international workshop on small ruminant production and development in South East Asia. MEKARN, Nong Lam, HCMC, Vietnam pp. 19-34, 2005.
Seddon, H.R., 1967. Diseases of domestic animals in Australia, Part 2, Arthropod infestations (flies, lice and fleas), 2-nd edition Commonwealth of Australia, 6.
Khama, I.S. and Kilonzo B.S., The effects of goats (Capra hircus) age and sex on flea infestation in Tanzania. Bull. Anim. Health Prod. Afr. 37, 61-66. 1989
Kusiluka, D.M, Daborn, C. J., Harrison J.S., Kambarage D.M and Matthewman R.W. Prevalence of Ectoparasites of Goats in Tanzania. J. Appl. Anim. Res. 7, 69-74, 1995.
Horak, I.G., Macivor K.M. and Greeff C.J., Parasites of domestic and wild animals in South Africa 39. Helminth and arthropod parasites of Angora goats in the southern Karoo. Onderstepoort J. Vet. Res. 68, 27–35. 2001.
Lloyd, S., Effect of pregnancy and lactation up on infection. Vet. Immunol. Immunopathol. 4, 153-176, 1983.
Kumar, A., Rawat, B.S., Saxena, A.K., and Agarwal, G.P., Population structure of goat biting louse Bovicola caprae (Phthiraptera: Ischnocera). Appl. Parasitol. 35, 141-145, 1994.
Rashmi, A. and Saxena. A., Population levels of phthirapteran ectoparasites on the goats in Rampur. Journal of Applied and Natural Science 41, 778-781, 2017.
Santos, A.G. and Faccini J.H., Estudo seccional da piolheira caprina causada por Damalinia caprae (Gurlt, 1843) (Trichodectidae: Mallophaga) na região do Semiárido do estado da Paraíba. Rev. Bras. Parasitol. Vet. 5, 43-46, 1996.
Seyoum, Z., Tadesse, T. and Addisu, A., Ectoparasites prevalence in small ruminants in and around Sekela, Amhara Regional State, Northwest Ethiopia. J. Vet. Med. 216085, 2015.
Sertse, T. and Wessene, A., A study on ectoparasites of sheep and goats in eastern part of Amhara Region, northeast Ethiopia. Small Rumin. Res. 69, 62-67, 2007.
Amare, С., Asfaw and Y. Tolossa, Y., Ectoparasites of Sheep and Goats in North-West Amhara Regional State, Ethiopia. Ethiop. Vet. J., 17, 55-67, 2013.
Israel, Y., Abera, T., and Wakayo, B., Epidemiological study on ectoparasite infestation ofsmall ruminants in Sodo Zuria District, Southern Ethiopia. J. Vet. Med. Anim. Health, 7, 140-144, 2015.
Leul, B., Berihun, A. and Etsay, K., Epidemiological distribution of major ectoparasites species of small ruminant in the case of chemical control campaign in Welkait district, Tigray region, Ethiopia. J. Trop. Med. 4175842, 2020
Seid, M., Zeryehun, T., Kemal, J. and Tilahun, B. Ectoparasites of small ruminants in and around Kombolcha, northeastern Ethiopia. Ethiop. Vet. J., 22(2), 81-93, 2017
Gatenby, R., The tropical agriculture, London and Beging Stock Mc Millan Education Ltd. ACCT, 610-617, 1991.
Steele, M., Goats. In: the tropical agriculturalist, London and basing stock, Macluan education ltd, ACCT, 7983, 1996.
Nicholson, M. and Butterworth, T., A guide to body condition score in zebu cattle international livestock center for Africa, Addis Ababa, Ethiopia, 1996.
Brown, L, Linde, T.C., Fourie, L.J. and Horak, I.G.,. Seasonal occurrence and production effects of the biting louse Damalinia limbata on Angora goats and 2 treatment options. J. S. Afr. Vet. Assoc. 76, 74–78, 2005.
Christodoulopoulos G., Theodoropoulos, G., Kominakis A., and Theis, J.H., Biological, seasonal and environmental factors associated with Pulex irritans infestation of dairy goats in Greece. Vet. Parasitol. 137, 137–143, 2006.
Blagoveshensky, D.I., Order Mallophaga – Chewing lice V: Manual for determination of insects of the European part of the USSR. T. I. Wingless, with incomplete metamorphosis. Ed.: Bei-Bienko, G.Ya. The science. Moscow - Leningrad 309-323, 1864.
Yakhchali, M. and Hosseine, A., Prevalence and ectoparasites fauna of sheep and goats fl ocks in Urmia suburb, Iran. Vet. arhiv 76, 431-442, 2006.
Barmon, S.C., Paul, A.K., Dina, M.A, Begum, N., Mondal, M.H. and Rahman, M.M., Prevalance of ectoparasites of sheep in Gaibandha district of Bangladesh. Int. J. Biol. Res. 1, 15-19, 2010.
Paul, A., Tanjim, M., Akter, S., Rahman, M., and Talukder, M., Prevalence of ektoparasites in black Bengal goat at the gaibandha district of Bangladesh. Bangladesh J. Prog. Sci. Technol. 10, 005-008, 2012.
Elsaid, E.O., Mohamed, M.A., El-Arifi, A.A. and El-Buni, A.A., The Prevalence of Ectoparasites on Sheep and Goats at EL Khoms Region - Libya. J. Am. Sci.., 9, 2013.
Tesfaheywet, Z. and Simeon, H., Major ectoparasites of small riminants in Bench Maji Zone, souther Ethiopia. Livestock Research for Rural Development 28, 4, 2016.
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