Acta Univ. Agric. Silvic. Mendelianae Brun. 2019, 67(1), 85-89 | DOI: 10.11118/actaun201967010085

The Effect of the Lactation Stage on Milk Yield, Composition and Renneting Parameters of Milk in Sheep Reared Under Intensive Nutrition

Leona Konečná1, Jan Kuchtík1, Markéta Sedláková1, Květoslava Šustová2, Radek Filipčík1
1 Department of Animal Breeding, Faculty of AgriSciences, Mendel University in Brno, Zemědělská 1, 613 00 Brno, Czech Republic
2 College of Business and Hotel Management, Department of Gastronomy, Bosonožská 9, 625 00 Brno, Czech Republic

The aim of our experiment was to assess changes in milk yield, composition and renneting parameters (pH, titratable acidity, coagulation time and curd quality) of sheep milk in the course of lactation and their relationships in the Lacaune ewes (n = 8), reared under intensive nutrition. The stage of lactation (SL) had a conclusive effect on the daily milk yield (DMY) and contents of all basic milk compounds. The DMY and fat content were relatively high during whole lactation. In our opinion these trends were influenced by the quite intensive nutrition. The SL had inconclusive effect on pH. In contrast, the SL had a conclusive effect on titratable acidity (TA) of milk. The correlations between the pH and all other indicators, with the exception of the coagulation time (CT), were inconclusive. Also most correlations between the TA and all other indicators monitored were inconclusive. The SL had inconclusive effect on the CT and curd quality (CQ). In our opinion, relatively balanced values of the CT and CQ during lactation indicate on the good health state and correct nutrition of ewes.

Keywords: stage of lactation, sheep milk, milk composition, coagulation time, curd quality, Lacaune breed
Grants and funding:

The study was created with funds from Project No. NAZV KUS QJ1230044.

Received: September 12, 2018; Accepted: January 11, 2019; Published: February 28, 2019  Show citation

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Konečná, L., Kuchtík, J., Sedláková, M., Šustová, K., & Filipčík, R. (2019). The Effect of the Lactation Stage on Milk Yield, Composition and Renneting Parameters of Milk in Sheep Reared Under Intensive Nutrition. Acta Universitatis Agriculturae et Silviculturae Mendelianae Brunensis, 67(1), 85-89. doi: 10.11118/actaun201967010085
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