Relationships between morphological udder characteristics in Improved Valachian, Tsigai and Lacaune dairy sheep breeds

PAVOL MAKOVICKÝ; MICHAL MILERSKI; MILAN MARGETÍN; PETER MAKOVICKY; MELINDA NAGY

doi:10.56093/ijans.v89i6.91145

Authors

PAVOL MAKOVICKÝ Assistant Professor, J. Selye University, Bratislavsk¡ cesta 3322, 945 01 Kom¡rno, Slovak Republic
MICHAL MILERSKI Assistant Professor, J. Selye University, BratislavskÃ¡ cesta 3322, 945 01 KomÃ¡rno, Slovak Republic
MILAN MARGETÍN Associate Professor, J. Selye University, Bratislavsk¡ cesta 3322, 945 01 Kom¡rno, Slovak Republic
PETER MAKOVICKY J. Selye University, BratislavskÃ¡ cesta 3322, 945 01 KomÃ¡rno, Slovak Republic
MELINDA NAGY J. Selye University, BratislavskÃ¡ cesta 3322, 945 01 KomÃ¡rno, Slovak Republic

https://doi.org/10.56093/ijans.v89i6.91145

Keywords:

Ewes, Heritability, Genetic and phenotypic correlations, Udder morphology

Abstract

Udder morphology traits were measured and subjectively assessed by the use of linear scores and cistern cross-section areas were scanned by ultrasound machine, and were examined in 266 dairy ewes of Tsigai (TS), Improved Valachian (IV) and Lacaune (LC) dairy ewes. Measurements were recorded repeatedly within and between lactations, therefore 772 sets of measurements were collected in total. Analysis of variance was conducted with the mixed procedure of SAS statistical package. The model included effects of experimental day, parity, day in milk, random effect of animal and residual error. Subsequently correlations between random animal effects for udder measurements and linear scores were computed. Subjectively assessed linear scores for udder depth, cistern depth, teat angle and teat size showed high correlations with actual measurements of appropriate traits on udder in all examined breeds (rp=0.65â€“0.80).

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