Growth Rate of Thoroughbred Horses during First Six Months of Life

محورهای موضوعی : Camel

J. Luszczynski ¹ (Department of Horse Breeding, Agricultural University, Al. Mickiewicza 24/28, 30-059 Kraków, Poland)
M. Pieszka ² (Department of Horse Breeding, Agricultural University, Al. Mickiewicza 24/28, 30-059 Kraków, Poland)

تاریخ دریافت : 1389/08/12 تاریخ پذیرش : 1389/11/01 تاریخ انتشار : 1390/03/11

کلید واژه: sex, Thoroughbreds, Foals, growth rate, season of birth, year of birth,

چکیده مقاله :

The aim of this study was to analyze the effect of sex, season and year of birth on growth rate of biometric measurements and body weight gain of Thoroughbred foals during first six months of life. 103 Thoroughbred foals (53 colts and 50 fillies) from Golejewko Stud born between 2006 and 2008, were used in this study. Thoroughbred foals born in winter months were characterized by significantly higher (P≤0.01) growth rate of height at withers, cannon circumference and body weight gain compared to foals born in spring months. The effect of year of birth on growth rate of height at withers was significant (P≤0.01), but differential and it was difficult to show a clear dependence. No significant effect of sex was observed on studied parameters except for body weight gain between 4 and 6 months of life.

منابع و مأخذ:

Brown-Douglas C.G. and Pagan J.D. (2006). Body weight, wither height and growth rates in Thoroughbreds raised in America, England, Australia, New Zealandand India. In: Proc. KentuckyEquine Res. Nutr. Conf. 15, 15-22.
Brown-Douglas C.G., Parkinson T.J., Firth E.C. and Fennessy P.F. (2005). Body weights and growth rates of spring and autumn-born Thoroughbred horses raised on pasture. N. Z. Vet. J. 53, 326-31.
Green D.A. (1969). A study of growth rate in Thoroughbred foals. Br. Vet. J. 125, 539-546.
Heusner G.L. (1992). Effect of month of birth on the size of foals. J. Equine Vet. Sci. 12, 297-300.
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. J. Anim. Sci. 48, 480-487.
Jelan Z.A., Jeffcott L.B., Lundeheim N. and Osborne M. (1996). Growth rates in Thoroughbred foals. Pferdeheilkunde. 12, 291-295.
Kulisa M. and Łuszczyński J. (2000). Wybrane wskaźniki biometryczne w okresie wzrostu źrebiąt pełnej krwi angielskiej. Oddziaływanie środowiska (stadniny) na wzrost klaczek i ogierków. Rocz. Nauk. Zoot. 27, 9-19.
Łojek J. (1993). Some factors affecting growth processes in Thoroughbred horses during their stay at the race track. Ann. WarsawAgric. Univ.-SGGW. Anim. Sci.29, 3-9.
Łuszczyński J., Kulisa M., Pieszka M. and Antos J.(2001a). Characteristic of biometrical coefficients and their correlation with racing courage on example of Thoroughbred horses from Stubno Stud. Biołogia Twarin(Anim. Biol.). 4, 271-279.
Łuszczyński J., Kulisa M., Pieszka M. and Kotelon R. (2001). Porównanie tempa wzrostu źrebiąt pełnej krwi angielskiej i czystej krwi arabskiej w pierwszych 18 miesiącach życia. Rocz. Nauk. Zoot. Supl. 12, 189-196.
Maciejewski J. and Zięba J. (1982). Genetyka Zwierząt i Metody Hodowlane. PWN. Warszawa.
Martin-Rosset W. (1983). Particularites de la croissance et developpement du cheval. Ann. Zootech. 32, 109-130.
McCarthy D. and Mitchell J. (1974). A study of growth rate in Thoroughbred foals and yearlings. Ir. J. Agric. Res. 13, 111-117.
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. N. Z. Vet. J. 55, 319-325.
Nogueira G.P., Barnabe R.C. and Verreschi I.T. (1997). Puberty and growth rate in Thoroughbred fillies. Theriogenology. 48, 581-588.
Pagan J.D., Jackson S.G. and Caddel S.A.(1996). Summary of growth rate in Thoroughbreds in Kentucky. Pferdeheilkunde 12, 285-289.
Pagan J.D., Koch A., Caddel S. and Nash D. (2005). Size of Thoroughbred yearlings presented for action at Keeneland sales affects selling price. In: Proc. Equine Sci. Soc. Symp. 19, 224-225.
Thompson K.N. (1995). Skeletal growth rates of weanling and yearling Thoroughbred horses. J. Anim. Sci. 73, 2513-2517.
Yamamoto O., Asai Y. and Kusunose R. (1993). Effects of sex, birth month, parity, weight of dam and farm on the growth of Thoroughbred foals and yearlings. Anim. Sci. Technol. 64, 91-498.