判断鱼类饱与饥的程度,对一般养殖户来说不是件容易的事,据我场多年实践,只要抓以下两个方面,就能取得意想不到的效果。 (一)怎样判断鱼类饥饱 一看吃食时间的长短。投喂后在3个小时内吃完为正常,2小时左右吃完表明投喂量不足,还有一部分鱼没有吃饱,应在下次投喂时适当增加;如延长到4小时还未吃完,而鱼群已离开食场,表明饱食有余,下次可适量减少。二看鱼类生长大小。四、五月份,鱼开食后食量一天天增加,在一周或一旬的投喂计划中,要观察周初与周 Judging the degree of fish hunger is not an easy thing for the average farmer. According to my field practice for many years, we can achieve unexpected results by grasping the following two aspects. (A) How to determine the length of eating time of a fish hungry. Feeding within 3 hours after eating as normal, about 2 hours after eating indicates that insufficient feeding, there are some fish did not eat enough, should be appropriate to increase the next feeding; such as extended to 4 hours have not yet eaten , While the fish have left the food court, indicating that more than enough food, the next may be appropriate to reduce. Second, see the size of fish growth. Fourth, in May, the fish appetite increases daily appetite, in a week or ten days of feeding plan, we should observe the beginning of week and week