The influence of the manner of housing and milkikg on milk production and quality
1999
Michalcova, A. | Benczova, E. | Canigova, M. (Slovenska Polnohospodarska Univ., Nitra (Slovak Republic))
Over 1996-1998, the effects of different systems of housing and milking on milk production and quality were studied in dairy cows of Slovak Spotted Cattle and Black Holstein-Friesian breeds under the conditions of 3 farms. Cows were placed in stables using stanchion housing and pipeline milking in the stall, stanchion housing and can milking in the stall, and free housing and milking in the milking parlour. Changes in milk quality and production after a change-over from stanchion housing to free one were estimated, with a change of the manner of milking at the same time. Milk samples were taken in the morning and evening once a month, from 1 to 7 months of lactation. Slovak Spotted Cattle dairy cows were found to produce a higher daily yield of milk when pipeline milked in the stall (16.94 and 20.0 kg, respectively) in comparison with can milked cows (18.30) or those milked in the milking parlour (12.54 kg). There where significant differences in fat content (4.13 vs 3.74%) and lactose content (4.81 vs 5.05%) between pipeline milked cows and those milked in the milking hall. A comparison of milk from pipeline milked cows and from can milked cows showed significant differences in the contents of crude protein (3.34 vs 3.12%), true protein (3.17 vs 2.93%), casein (2.49 vs 2.30%) and whey protein (0.67 vs 0.63%). With Black Holstein-Friesian dairy cows, the manner of housing and milking caused differences not in milk production but in milk composition. The highest content of fat and crude protein was detected for milk from free housed cows milked in the milking parlour
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