Agriculturae Conspectus Scientificus, Vol 78, No 3 (2013)

The Effect of Long-term Freezing on Renneting Properties of Sarda Sheep Milk

Michele PAZZOLA, Maria Luisa DETTORI, Gianpiera PIRAS, Emanuela PIRA, Fabio MANCA, Ornella PUGGIONI, Antonia NOCE, Giuseppe Massimo VACCA

Pages: 275-279


Cold storage is a well-known strategy to limit concerns about seasonality for sheep dairy productions. The aim of this study was to investigate the effect of long-term freezing on milk renneting properties from the Sarda sheep, an autochthonous breed from Italy. Two-hundred milk samples from 50 pluriparous Sarda ewes were collected at monthly intervals throughout the lactation from April to July. Each sample of fresh milk was analysed for composition and subsamples were obtained and frozen for one, three and five months. Renneting properties, both from the fresh and frozen subsamples, were achieved using the Formagraph instrument and results were submitted to a mixed model statistical analysis. The storage effect significantly affected (P


sheep; milk; renneting properties; freezing

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