Iranian Journal of Parasitology 2016. 11(4):559-567.

Performance and Parasitology of Semi-intensively Managed West African Dwarf Sheep Exposed to Gastrointestinal Helminth Infect-ed Paddocks and Varied Protein-energy Feeds
Adekayode Olarinwaju SONIBARE, Olusiji Sunday SOWANDE, Shamusideen Oladeinde IPOSU, Joshua LUKA, Michael AYANKOSOI, Adeniyi Olugbega EGBETADE


Background: The performance and parasitology of semi-intensively managed West African dwarf (WAD) lambs were evaluated following exposure to gastrointestinal helminth infected paddock and varied protein-energy feeds.

Methods: Twenty four lambs obtained from the Department of Animal Breeding and Genetics and brought to Directorate of University farm (DUFARM) of Federal University of Agriculture Abeokuta, Ogun state, Nigeria, where the research was carried out in 2014, were grouped into four each containing six animals based on different energy-protein feed combination thus; group 1(G1) low energy low protein, group 2 (G2) low energy high protein, group 3 (G3) high energy low protein and group 4 (G4) high energy high protein. Experimental animals were supplemented with concentrate feed after grazing on daily in a nematode infected paddock. Clinical signs of infection were monitored. Live weight, faecal egg count (FEC), worm counts, packed cell volume (PCV), haemoglobin concentration (Hb) and red blood cell count (RBC) were determined using standard methods.

Results: Anorexia and intermittent diarrhea were the observed signs. Worm counts did not differ significantly (P=0.309) among the groups. The weight and FEC differed significantly (P˂0.05) across the days and among the groups, while haematological parameters increased significantly (P˂0.05) across the days and among the groups.

Conclusion: Lambs in G2 followed by G4 showed improved parameters and superior performance when compared to the other groups. It is therefore recommended that feed high in protein content is capable of mitigating deleterious effect of gastrointestinal helminth parasitism.


Helminth, WAD sheep, Feed supplement, Performance, Parasitology

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Chiejina SN, Fakae BB, Behnke O, Nnadi PA, Musongong GA, Wakelin D. Expression of acquired immunity to local isolate of Haemonchus contortus by Nigerian West African Dwarf goats. Vet Parasitol. 2002; 104:229-242.

Baker RL, Gibson JP, Irqi FA, Mange DM, Mugambi JM, Harotte O, et al. Exploiting the genetic control of resistance of gastro-intestinal helminth infection in sheep In: Proceedings. Association for the Advancement of Animal Breeding and Genetics. 2003; 25-31.

Ademola OI, Fagbemi BO, Idowu SO. Effects of Haemonchus contortus on pre-slaughtered weight of goats. Vet Parasitol. 2004; 122:151-154.

Fajimi K, Taiwo AA, Ayodele IO, Adebowale EA, Ogundola FI. Pawpaw seeds as therapeutic agent for parasite of gastrointestinal helminth of goats. ASSET serial A. 2005; 5: 23-29.

Akhtar MS, Zafar I, Khan MH, Muhammad L. Anthelmintic activity of medicinal plants with particular reference to their use in animals in the Indo-Pakistan Sub continent. Small Rumin Res.2000; 38:90-107.

Waller PJ. Sustainable nematode parasites control strategies for ruminant’s livestock by grazing management and biological control. Anim Feed Sci Technol.2006; 126:277-289.

Chiejina SN, Behnke JM.The unique resistance and resilience of the Nigerian West African Dwarf goats to gastro-intestinal nematode infections. Paras Vecto. 2011;4:12. doi: 10.1186/1756-3305-4-12.

Haile A, Amindo OD, Tembely S, Mukasa-Mugerwa E, Tibbo M, Yami A, et al. Effects of dietary protein supplement and infection with gastro-intestinal nematode parasites on some nutrition and metabolic parameters in Ethiopian Menz and Horro sheep. Livest Product Sci. 2004; 91:183-195.

Coles GC, Jackson F, Pomroy WE, Prichard RK, Von-Samson-Himmelstjerna G, Silvestre A, et al. The detection of anthelmintic resistance in nematodes of veterinary importance. Vet Parasitol. 2006; 136:167-185.

Jabber A, Iqbal Z, Kerboeuf D, Muhammed G, Khan MN, Afaq M. Anthelmintic resistance: The state of play revisited. Life Sci. 2006; 79:2413-2431.

Hoste H, Torres-Acosta JPJ, Auguilar-caballero AJ. Nutrition-parasite interactions in goats: is immunoregulation involved in the control of gastrointestinal nematodes? Parasit Immunol. 2008; 30:79-88.

Knox MR. Nutritional approaches to nematode parasites control in sheep. Feed Mix. 2000; 8:12-15.

Gill HS, Watson DL, Brandon MR. Monoclonal antibodies to CD+4 T cells abrogate genetic resistance to Haemonchus contortus in sheep. Immunol. 1993; 78: 43-49.

Coop RL, Kyriazakis I.Nutrition and parasites interactions. Vet Parasitol.1999; 84:187-204.

Bowie EA. Alternative treatments for Haemonchus Contortus in sheep: Testing of a natural dewormer and literature review of management methods. Dickinson College Honors Theses. 2014 Paper 163.

Sokerya S. The Effects of Cassava Foliage (Manihot esculenta) on Gastrointestinal Parasites of Small Ruminants in Cambodia. Doctoral Thesis, Swedish University of Agricultural Sciences, Uppsala 2009.P 68

Etter E, Hoste H, Chartier C, Pors I, Koch C, Broqua C, et al. The effect of two levels of dietary protein on resistance and resilience of dairy goats experimentally infected with Trichostrongylus colubriformis: Comparison between high and low producers. Vet Res. 2000; 31 (2):247-258.

Marume U, Hugo A, Chimonyo M, Muchenje V, Dzama K. Effect of dietary supplementation with Acacia karroo leaves on fatty acid profiles and consumer sensory attributes of Xhosa lop-eared goats under artificial haemonchosis.Anim Prod Sci. 2012;52(12):1099-1106

Mhomga LI, Nnadi PA, Chiejina SN, Idika IK, Ngongeh LA. Effects of dietary protein supplementation on the performance of West African dwarf (WAD) goats infected with Haemonchus contortus and Trichostrongylus colubriformis. Turk J Vet Anim Sci. 2012; 36(6): 668-675.

Houert MF, Van J, Barger IA, Steel RG, Windon RG, Emery DL. Effects of dietary protein intake on responses of young sheep to infection with Trichostrongylus colubriformis. Vet Parasitol. 1995; 56:163-180.

AOAC. Official methods of analysis. Association of official Chemists, 17th ed. Arlington, US. 2000.

CIOMS. International guiding principles for biomedical research involving animals (1985), Developed by Council for International Organization of Medical Sciences in collaboration with World Health Organization (WHO),1211 Geneva, 27, Switzerland.

Schalm OW, Jain NC, Carroll EJ. 1995. Veterinary Haematology. (5th ed.). London: Lea and Febiger; 1995.

Statistical Analysis Systems (SAS), version 8. Developed in North Carolina University, United States of America; 2003.

Radostits OM, Gay CC, Hinchiff KW, Constable PD. Veterinary Medicine: A textbook of the diseases of cattle, sheep, goats, pigs and horses.10th ed. Saunders Elsevier; 2006.

Chiejina SN. The epidemiology of helminth infections of domesticated animals in the tropics with emphasis on fasciolosis and parasitic gastroenteritis. In: Chowdhury N, Tada I, editors. Perspectives on Helminthology. United Kingdom: Sci. Publisher; 2001. p. 41-87.

Fakae BB. The epidemiology of helminthosis in small ruminants under the traditional husbandry system in eastern Nigeria. Vet Res Commun. 1990; 14: 381-391.

Steel JW.Effects of protein supplementation of young sheep on resistance development and resilience to parasitic nematodes. Austra J Exp Agric. 2003; 43:1469-1476.

Kyriazakis I, Tolkamp BJ, Hutching MR.Towards a functional explanation for the occurrence of anorexia during parasitic infections. Anim Behav. 1998; 56:265-274.

Khan LP, Walkden-Brown SW, Lea LM.Dietary enhancement of resistance to Trichostrongylus colubriformis in Merino weaners. Asian Australian J Anim Sci. 2000; 13: 68-71.

McLure SJ, McLure TJ, Emery DL.Effect of molybdenum on primary infection and subsequent challenge by nematode parasite Trichostrongylus colubriformis in weaned Merino lambs. Res Vet Sci. 1999:67: 17-22.

32; Datta FU, Nolan JV, Rowe JB, Gray GD. Protein supplementation improves the performance of parasitized sheep fed a straw-based diet. Int J Parasitol. 1998; 28:1269-1278.

Strain SAJ, Stear MJ. The influence of protein supplementation on the immune response to Haemonchus contortus. Parasit Immunol. 2001; 23: 527-531.

Amynalem H, Tembely S, Anindo DO, Mukasa-Mugerwa E, Rege JEO, Alemu Y, et al. The effects of breed and dietary protein supplementation on the response to gastro-intestinal infections in Ethiopian sheep. Small Rumin Res. 2002: 44:247-261.

Sreter T, Kassai T, Takacs E.The heritability and specificity of responsiveness to infection with Haemonchus contortus in sheep. Int J Parasitol. 1994; 24:871-876.

Hohenhaus MA, Outteridge PM.The immunogenetic resistance to Trichostrongylus colubriformis and Haemonchus contortus parasites in sheep. Brit Vet J. 1995; 151:119 – 140.

Bisset SA, Morris CA. Feasibility and implication of breeding sheep for resilience to nematode challenge. Int J Parasitol. 1996 ; 26:857-868.

Knox MR, Steel JW. Nutritional enhancement of parasite control in small ruminant production systems in different countries of Southeast Asia and Pacific. Int J Parasitol. 1996; 26: 963-970.

Olayemi FO, Farotimi JO, Fagbohun OA. Haematology of the West African dwarf sheep under two different management systems in Nigeria. Afr J Biomed. Res. (2000);3: 197-198.


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