References

Barger, I.A., 1993. Influence of sex and reproductive status on susceptibility of ruminants to nematode parasitism. Int. J. Parasitol., 23: 463-469.
CrossRef  |  Direct Link  |  

Bishop, S.C., 2011. Possibilities to breed for resistance to nematode parasite infections in small ruminants in tropical production systems. Animal, 6: 741-747.
CrossRef  |  Direct Link  |  

Bisset, S.A., A. Vlassoff, P.G.C. Douch, W.E. Jonas, C.J. West and R.S. Green, 1996. Nematode burdens and immunological responses following natural challenge in Romney lambs selectively bred for low or high faecal worm egg count. Vet. Parasitol., 61: 249-263.
CrossRef  |  Direct Link  |  

Bisset, S.A., J.A. van Wyk, G.F. Bath, C.A. Morris, M.O. Stenson and F.S. Malan, 2001. Phenotypic and genetic relationships amongst FAMACHA^© score, faecal egg count and performance data in Merino sheep exposed to Haemonchus contortus infection in South Africa. Proceedings of the 5th International Sheep Veterinary Congress, January 22-25, 2001, Cape Town, South Africa -.

Castells, D., 2009. [Evaluation of genetic resistance Corriedale sheep to gastrointestinal nematodes in Uruguay: Heritability and genetic correlations between nematode egg count and production traits]. M.Sc. Thesis, Facultad de Veterinaria, Universidad de la Republica, Uruguay (In Spanish).

Colditz, I.G. and L.F. Le Jambre, 2008. Development of a faecal occult blood test to determine the severity of Haemonchus contortus infections in sheep. Vet. Parasitol., 153: 93-99.
CrossRef  |  Direct Link  |  

Davies, G., M.J. Stear and S.C. Bishop, 2005. Genetic relationships between indicator traits and nematode parasite infection levels in 6-month-old lambs. Anim. Sci., 80: 143-150.
CrossRef  |  Direct Link  |  

Happich, F.A. and J.C. Boray, 1969. Quantitative diagnosis of chronic fasciolosis. 1. Comparative studies on quantitative faecal examinations for chronic Fasciola hepatica infection in sheep. Aust. Vet. J., 45: 326-328.
CrossRef  |  PubMed  |  Direct Link  |  

Kahn, L.P. and D.L. Watson, 2001. Sustainable Control of Internal Parasites of Sheep (SCIPS): A summary of recent and current research on control of internal parasites of sheep. http://sydney.edu.au/vetscience/sheepwormcontrol/project4.pdf.

Kaplan, R.M., J.M. Burke, T.H. Terrill, J.E. Miller and W.R. Getz et al., 2004. Validation of the FAMACHA^© eye color chart for detecting clinical anemia in sheep and goats on farms in the Southern United States. Vet. Parasitol., 23: 105-120.
CrossRef  |  Direct Link  |  

Le Jambre, L.F., 1995. Relationship of blood loss to worm numbers, biomass and egg production in Haemonchus infected sheep. Int. J. Parasitol., 25: 269-273.
CrossRef  |  Direct Link  |  

Nari, A., H. Cardozo, J. Berdie, F. Canabez and R. Bawden, 1977. [Dynamics of population for gastrointestinal nematodes of sheep in Uruguay]. Veterinaria, 14: 11-24 (In Spanish).

Oliveira-Sequeira, T.C.G., A.F.T. Amarante and J.L. Sequeira, 2000. Parasitological characteristics and tissue response in the abomasum of sheep infected with Haemonchus spp. Arquivo Brasileiro Medicina Veterinaria Zootecnia, 52: 447-452.
CrossRef  |  

Pandey, V.S., 1999. Genetic resistance to internal parasites in sheep and goats and its exploitation for increasing animal productivity in South-East Asia. Summary Reports of European Commission Supported STD-3 Projects (1992-1995), pp: 190-194. http://internships.cta.int/pubs/std/vol2/pdf/073.pdf.

Perry, B., T.F. Randolph, J.J. McDermont, K.R. Sones and P.K. Thornton, 2002. Investing in Animal Health Research to Alleviate Poverty. International Livestock Research Institute (ILRI), Nairobi, Kenya, ISBN-13: 9789291461080, Pages: 140.

Roberts, J.L. and R.A. Swan, 1981. Quantitative studies of ovine haemonchosis. I. Relationship between faecal egg counts and total worm counts. Vet. Parasitol., 8: 165-171.
CrossRef  |  Direct Link  |  

Sotomaior, C.S., F. Rosalinski-Moraes, A.R.B. da Costa, D. Maia, A.L.G. Monteiro and J.A. van Wyk, 2012. Sensitivity and specificity of the FAMACHA^© system in Suffolk sheep and crossbred Boer goats. Vet. Parasitol., 190: 114-119.
CrossRef  |  Direct Link  |  

Soulsby, E.J.L., 1987. [Parasitology and Parasitic Diseases in Pets]. 7th Edn., Interamericana/McGraw-Hill, Mexico, ISBN-13: 9789682573712, Pages: 823, (In Spanish).

Vanimisetti, H.B., S.L. Andrew, A.M. Zajac and D.R. Notter, 2004. Inheritance of fecal egg count and packed cell volume and their relationship with production traits in sheep infected with Haemonchus contortus. Anim. Sci., 82: 1602-1611.
Direct Link  |  

Wakid, M.H., 2010. Fecal occult blood test and gastrointestinal parasitic infection. J. Parasitol. Res. 10.1155/2010/434801

Whitlock, H.V., 1948. Some modifications of the McMaster helminth egg-counting technique and apparatus. J. Council Scient. Ind. Res., 21: 177-180.
Direct Link  |  

Willis, H.H., 1921. A simple levitation method for the detection of hookworm ova. Med. J. Aust., 29: 375-376.