3 results about "Food conversion" patented technology

The present application relates to the field of domestication of fish, and particularly relates to an artificial domestication method of Leptobotia rubipinnis. The method comprises the following steps: collecting and transporting wild parent fish, temporarily raising the wild parent fish, and domesticating the wild parent fish. The domestication process of the wild parent fish comprises the following steps: ① feeding biological bait, ② feeding biological bait and artificial compound feed, and ③ feeding artificial compound feed. The method has the advantages of simple operation process, and the use of the segmented temporary raising and domestication, gradual conversion from biological bait to artificial compound feed, and regulation of water flow rate during feeding, so that the death of the parent fish due to starvation is avoided, thereby improving the survival rate (more than 75%), the food conversion rate and the artificial domestication survival rate (≥68%) of the wild parent fish, and providing technical support and basic data accumulation for the artificial propagation, disease prevention and control and artificial propagation and release of Leptobotia rubipinnis.

The invention relates to the technical field of fish food conversion domestication, and discloses an outdoor perch net cage food conversion domestication device and method.The outdoor perch net cage food conversion domestication device comprises an aisle plate, net cages and bearing platforms are fixedly connected to the two sides of the aisle plate, the bearing platforms are located at the tops of the net cages, and bottom plates are fixedly connected to the two sides of the top of the aisle plate; water spraying assemblies and lock catches are arranged on the two sides of the aisle plate, one end of each lock catch is fixedly connected to the outer wall of the aisle plate, the outer wall of each lock catch is sleeved with a pull rope, and each water spraying assembly comprises a first water spraying head and a water pump. The feed is pushed to move by utilizing impact force of water flow, the effect of simulating the dynamic state of live baits is achieved, the domestication problem that carnivorous fishes such as perches only eat live baits and do not eat static artificial feed is solved, the domestication effect is remarkably enhanced, the feeding habit conversion process of the carnivorous fishes is accelerated, in addition, timed and quantitative feeding can be achieved, labor is saved, and the domestication efficiency is improved. The food conversion domestication effect is also obviously enhanced, and the fish food habit conversion process is accelerated.

This invention relates to a method for reducing total Ca and / or available P in poultry feed, a method for growing poultry, a method for selecting a desired food conversion rate for poultry, a method for producing poultry feed, use of hydroxylated vitamin D for obtaining in poultry essentially the same feed conversion rate, and poultry feed.