Pattern of Development in Foals from Four Different Breeds between Birth and Weaning

Hélio Cordeiro Manso Filho, Mônica Miranda Hunka, Erika Korinfsky Wanderley, Stephânia Katurchi Mendes Mélo, Maria do Rosário Beltrão, José Mário Girão Abreu, Helena Emília Costa Cordeiro Manso

Núcleo de Pesquisa Equina, Departamento de Zootecnia, Universidade Federal Rural de Pernambuco, Recife, Brazil.

DOI: 10.4236/ojvm.2014.45009                

Abstract

Several studies have shown a major development in height and cannon bone circumference in foals from birth to weaning and from different breeds. However, in Brazil, there is little information about foal development. For this reason, this study has used data on foals from seven different farms in Pernambuco, Northeast Brazil, where horses have a major economic importance. The aim of this study was to compare foal’s development from four breeds and to develop a regression formula in order to estimate such development. It was used data from 210 suckling foals (Arabians n = 18, Campolina n = 86, Mangalarga Marchador n = 42 and Quarter Horses n = 64), raised in similar management practices. Their height at withers, heart girth, and cannon bone girth were measured monthly from birth to weaning. Data we reanalyzed by ANOVA and Tukey Test, with P established in 5%. The highest mean of height at withers was observed in the Arabian foals, and it was similar to Campolina and Mangalarga Marchador foals. The last breed presented a higher percentage of gain in height (~36%) and higher heart girth. On the other hand, Campolina foals had the highest mean of cannon bone girth. There was a significant interaction between breed and development phase in heart and cannon bone girths. All regression for mulas obtained from this data was very significant, and it was showed that they can predict height at withers in the four breeds studied. Heart and cannon bone girths showed medium value of R2 and large significance. It is important to highlight that fetal programing produces significant impact on foal development, even after weaning. So, this study would have observed some more changes if its scope had been extended beyond this phase.

Keywords

Equine, Body Measurement, Horse Breeds, New Born Foals

Conflicts of Interest

The authors declare no conflicts of interest.

References

[1]	Saastamoinen, M. (1990) Factors Affecting Growth and Development of Foals and Young Horses. Acta Agriculturae Scandinavica, 40, 387-396.
[2]	Thompson, K.N. (1995) Skeletal Growth Rates of Weanling and Yearling Thoroughbred Horses. Journal of Animal Science, 73, 2513-2517.
[3]	Rezende, A.S.C., Sampaio, I.B.M., Legorreta, G.L. and Moreira, D.C.A. (2000) Efeito de dois Diferentes Programas Nutricionais Sobre o Desenvolvimento Corporal de Potros Mangalarga Marchador. Revista Brasileira de Zootecnia, 29, 495-501. http://dx.doi.org/10.1590/S1516-35982000000200024
[4]	Luszczynski, J. and Pieszka, M. (2011) Growth Rate of Thoroughbred Horses during First Six Months of Life. Iranian Journal of Applied Animal Science, 1, 131-134.
[5]	Hintz, H.F., Hintz, R.L. and van Vleck, L.D. (1979) Growth Rate of Thoroughbreds. Effect of Age of Dam, Year and Month of Birth, and Sex of Foal. Journal of Animal Science, 48, 480-487.
[6]	Allen, W.R., Wilsher, S., Turnbull, C., Stewart, F., Ousey, J.C., Rossdale, P.D. and Fowden, A.L. (2002) Influence of Maternal Size on Placental, Fetal and Postnatal Growth in the Horse. I. Development in Utero. Reproduction, 123, 445-453. http://dx.doi.org/10.1530/rep.0.1230445
[7]	Manso Filho, H.C., Costa, H.E.C., Santos, F.L., Abage, M.G., Ferreira, M.C. and Marques, S.R. (2000) Development of the Campolina Foals in Brazil. Journal of Equine Veterinary Science, 20, 275-276. http://dx.doi.org/10.1016/S0737-0806(00)80348-2
[8]	Garcia, F.P.S., Alfaya, H., Lins, L.A., Haetinger, C. and Nogueira, C.E.W. (2011) Determinacao do Crescimento e Desenvolvimento de Potros puro Sangue Inglês em BagE-RS. Revista Portuguesa de Ciências VeterinArias, 110, 43-46.
[9]	Lima, R.A.S., Shirota, R. and Barros, G.S.C. (2006) Estudo do Complexo do Agronegócio Cavalo. ESALQ/USP, Piracicaba, 250 p.
[10]	Silva, H.M.M., Silva, M.P., Maurício, E.A., Ferreira, L.M.C., Manso, H.E.C.C.C. and Manso Filho, H.C. (2008) Sócio-Economia da Criacao de Cavalos nos Distrito de Aldeia, Camaragibe-PE. Anais JEPEX 2008, 234-235.
[11]	NRC (1989) Nutritional Requirements of the Horse. The National Academies Press, Washington DC.
[12]	Ferreira, D.C.A., Cunha, O.G.V., Silva, H.M.M., Santiago, T.A., Ferreira, L.M.C., Manso, H.E.C.C.C. and Manso Filho, H.E. (2008) Epoca do Nascimento e Biometria de Cavalos da raca Campolina em Pernambuco. Anais V Congresso Nordestino de Producao Animal, Aracajú, 1-3.
[13]	Manso Filho, H.C., Manso, H.E.C.C.C., McKeever, K.H. and Abreu, J.M.G. (2012) Heart Rate Responses of Two Breeds of Four-Gaited Hoses to a Standardised Field Test. Comparative Exercise Physiology, 8, 41-46. http://dx.doi.org/10.3920/CEP11013
[14]	Morel, P.C.H., Bokor, A., Rogers, C.W. and Firth, E.C. (2007) Growth Curves from Birth to Weaning for Thoroughbred Foals Raised on Pasture. New Zealand Veterinary Journal, 55, 319-325. http://dx.doi.org/10.1080/00480169.2007.36788
[15]	Forhead, A.J., Ousey, J.C., Allen, W.R. and Fowden, A.L. (2004) Postnatal Insulin Secretion and Sensitivity after Manipulatin of Fetal Growth by Embryo Transfer in the Horse. Journal of Endocrinology, 181, 459-467. http://dx.doi.org/10.1677/joe.0.1810459