Effect of milking time on milk production and milk quality of dairy cow fed with fermented corn cob

Abstract

Abstract Many factors affected the milk production and milk quality of dairy cattle, such as the breed, age, type of feed, months of lactation, time milking and others. The purpose of this study was to determine the differences in milk production and milk quality in the morning and afternoon milking of dairy cows given corn cobs fermented. The study was carried out for one month, using eight lactating cows, divided into two groups each consisting of four cows. P1= complete feed + 40% of elephant grass, P2= complete feed + 20% of elephant grass + 20% of fermented corn cobs. Data analysis was displayed in chart form, the average and standard deviations and analyzed descriptively. The results showed that milk production in the morning milking treatment P1 was 18.36 %, higher than in the afternoon milking and P2 milking morning treatment was 11.56%, higher than in the afternoon milking or the second average morning milking treatment 14.96 % higher than afternoon milking. The milk production of group P1 which not given corn cobs fermented was 8.54 ± 2.78 L/h/d in the morning which was higher than the afternoon milking with average milk production 5.89 ± 1.89 L/h/d, while in the cattle group (P2) which gets fermented corn cobs, milk production in the morning milking was 8.40 ± 1.68 L/head/day, higher than with the afternoon milking with an average milk production of 6.65 ± 1.59 L/h/d. The quality of milk at morning milking was showed from the protein content (3.26%) and fat (3.37%) lower than in afternoon milking with the protein content of 4.03%, and fat content 3.79%. In conclusion, the research showed that milking in the morning has higher milk production than milking in the afternoon, while milk quality in the afternoon milking is higher than in the morning milking.

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