Survey on a canadian dairy farm
1988
Chung, T.Y. (Konkuk Univ., Seoul (Korea R.). Coll. of Animal Husbandry)
As a part of farm management, the feeding and management status of a randomly selected dairy farm, located in New Sarepta, Edmonton, Alberta (Robly Clane Dairy Farm) were investigated. This farm consists of 221 ha of cultivated and pasture land, and 131 heads of Holstein cattle including 65 milking cows. The Dairy herd operation was observed for this study and feeding data were collected for a period of 82 days (September 20 to December 10, 1987). This milking cows were fed alfalfa silage and hay ad libitum and 7 to 14Kg of concentrates according to the milk produced. The rolling herd average of milk production was 6,425Kg with 4.3 % fat in 1986/1987. Crude protein content of alfalfa silage and alfalfa hay were 3.44 % units and 6.64 % units lower than the average value of Alberta feeds, respectively, but grass hay 4.14 % units higher. Calcium content of forage was about 50 % lower than the Alberta average. Based on our analysis and observations the following recommendations were made to the farm owner for the improvement of feeding and management practices: Grouping into high and low producing milking heads for the better control of feed intake, heat detection and health care for the high producing cows and avoiding over-fattening of low yield ones. Periodical analysis of forage and grains. Accurate record keeping of feed intake. Phosphorus intake appears too low. Supplement of high phosphorus source of mineral block in heard
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