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Article

Yield and quality of milk and udder health in Martina Franca ass: effects of daily interval and time of machine milking

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Pages 697-699 | Published online: 07 Mar 2016
 

Abstract

Twenty asses of Martina Franca breed, machine milked twice a day, were used to assess the influence of milking interval (3-h, 5-h, and 8-h; N=5) and time (700, 1200 and 1900) on milk yield and udder health. Individual milk samples were taken to determine fat, protein and lactose content. Sensory analysis profile was also assessed. Milk’s total bacterial count (TBC), somatic cell content (SCC) and udder’s skin temperature were considered to assess udder health. Milk yield increases by 28.4% (P<0.01) with a milking interval from 3-h to 8-h and is higher (P<0.01) at morning milking. The maximum milk yield per milking corresponds to 700 milking (1416.9 mL) thus indicating a circadian rhythm in milk secretion processes. Milking intervals of 5 and 8 hours cause a decrease (P<0.01) in milk fat and lactose content. The 8-h interval leads to an increase (P<0.01) in SCC but without any significance for the health udder. No alterations about CBT, clinical evaluation and temperature of udder were observed. Milk organoleptic characteristics were better in the 3-h interval milking.

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