engleski

Effect of some holstein foals birth body measurements on later development

The aim of investigations was to determine body measurements effect in some phases of Holstein foals growth and development on their later development and sport integration. Twenty five Holstein breed foals were measured from birth to birth by the age of three years in the north-west part of the Republic of Croatia. Data consists of four height body measures: withers height, back height, small of the back hight as well as tail root. Foals measurings were carried out after birth at the age of 1, 2, 3, 4, 5, 6, 12, 18, 24, 30 and 36 months. Lydt stick was used for measuring (withers height was expressed by cattle tape measure). Achieved measures were processed by a statistical program SPSS/PC (Nie et al. 1975). Correlations of the above mentioned traits between some age groups were calculated on the basis of achieved values. The investigation results of withers height growth intensity, back height, small of the back height and tail root height indicate higher intensity in the first postbirth months decreasing with aging. In the first postbirth year increase of all four properties above mentioned ranged 34.67%-37.89% compared to postbirth measures. The above quoted body measures increased by 41.14%-46.9% at the age of 2 years whereas at the age of three years this increase ranged 47.05-53.44% compared to quoted measures obtained by post birth measuring. Values of the above mentioned investigations indicate that foals birth size of withers height, back hight, small of the back hight as well as tail root height effect positively their later development. Attained correlation coefficient values of the quoted properties are positive and they ranged between r = 0.250 and r = 0.998**.

holstein foals ; birth body measurements ; development ; correlation

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