Establishment of feeding techniques of Wakasa-gyu, Japanese Black, using feed consist of ingredients produced only in Fukui (the 1sup(st) report: lactation period～mid fatting period)
2018
Taga, C. (Fukui Prefectural Livestock Experiment Station (Japan)) | Endoh, A. | Sasaki, K.
Wakasa-gyu, the brand name of Japanese Black in Fukui, were raised with feed which ingredients were all produced in Fukui during a whole period from their birth to slaughter for the development of the brand-new Japanese Black added value. For the roughage, grass hay grown at Fukui Livestock Experimental Station were fed until fatting period and rice straw collected in the paddy fields in Fukui were fed after that. Barley, corn, soy beans and barley bran produced in Fukui were used as the ingredients of concentrated feed. Their nutrient compositions were analyzed and the contents of feeds of each period were designed based on these results. 2 steers born in Fukui were tested, and their intake of feed, growth (weight, height and length) and state of health (blood test) were examined. In terms of intake of feed, the steers started feeding properly at about 30 days old and fed 1.5 kg/day.steer at day 80. At that point in time, the steers were weaned and feed was changed from that for lactation period to that for rearing period. This did not influence on intake on feed, the steers were fed 4.0 kg/day.steer at day 280. The percentage of crude protein of feed was lowered from 16% to 14% since the steers had diarrhea when they fed more than 4.0 kg/day.steer, and with this altered feed, steers could feed up to 6.5 kg/day.steer. With regard to weight, the average of 2 steers was about 400 kg at day 440 though it showed small growth rate in summer. The almost all results of blood test ranged normal values. Overall, it could be said that Japanese Black could be raised with feed which ingredients were all produced in Fukui until at least 450 days old.
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