Correlations Between the Morphological and Functional Traits of the Udder in Buffalo Cows from Bulgarian Murrah

K. DIMOV
Agrarian Institute, BG-9700 Shumen, Bulgaria

Abstract

DIMOV, K., 2001. Correlations between the morphological and functional traits of the udder in buffalo cows from Bulgarian Murrah. Bulg. J. Agric. Sci., 7: 185-192

Research was carried out about the correlations between the morphological and functional traits of the udder in buffalo cows from the newly created population Bulgarian Murrah.
It was ascertained that between the morphological traits of the udder determining its morphological structure, the highest correlations exist between them and the amount of milk obtained during the first minute since the beginning of the milking. The lowest phenotypic correlations are between the morphological traits with the amount of milk obtained during the first three minutes. The correlations between the other morphological and functional traits take medial position.
There are positive and significant correlations (P < 0.05, P < 0.001) between the functional traits of the udder. The highest correlations are between the lactation milk yield and the amount of milk obtained on the controlling day, (rp = 0.996) and with the duration of the milking process (rp = 0.717). There are established high correlations between the amount of milk obtained on the controlling day with the duration of milking (rp = 0.637), with the average minute milk yield (rp = 0.718), and also between the milk obtained during the first minute and the milk obtained during the first three minutes (rp = 0.848).

Key words: buffaloes, correlations, milk yield, morphological traits, udder