RU2012132128A

RU2012132128A - METHOD FOR FORMING AND OPERATING A SHARTER ROLLER IN INSTALLATIONS WITH A CLOSED WATER SUPPLY CYCLE IN POLYCYCLE MODE

Info

Publication number: RU2012132128A
Application number: RU2012132128/13A
Authority: RU
Inventors: Евгений Иванович Хрусталёв; Александр Владимирович Головтеев
Original assignee: Евгений Иванович Хрусталёв; Александр Владимирович Головтеев
Priority date: 2012-07-27
Filing date: 2012-07-27
Publication date: 2014-02-10
Also published as: RU2514225C2

Abstract

1. Способ формирования и эксплуатации маточного стада судака, заключающийся в нересте производителей, инкубировании выметанной и оплодотворенной икры, выращивании личинок и последующем выращивание молоди, отличающийся тем, что из молоди одной генерации формируют четыре группы, которые содержат в воде температурой 20-27°С, при этом молодь первой, второй, третьей и четвертой групп переводят на режим содержания первой «искусственной зимовки» в возрасте четырех, семи, десяти и тринадцати месяцев соответственно, длительность «искусственной зимовки» составляет два месяца, в течение которых устанавливают температуру воды 6-10°С, при вхождении или выходе из режима «искусственной зимовки» температуру воды изменяют с градиентом 1°С в сутки, вторую и последующие «искусственные зимовки» в группах устанавливают по истечении каждых двенадцати месяцев с даты начала предыдущей «искусственной зимовки» соответствующей группы.2. Способ по п.1, отличающийся тем, что личинок выращивают при плотности посадки 25-30, мальков при плотности посадки 3-5 тыс.шт./м.3. Способ по п.1, отличающийся тем, что молодь первой, второй, третьей и четвертой групп переводят в режим «искусственной зимовки» при достижении ими средней массы 20, 110, 250 и 600 г, соответственно.4. Способ по п.1, отличающийся тем, что вторую, третью и четвертую группы молоди до перевода их на режим первой «искусственной зимовки» выращивают при температуре 20-22°С.5. Способ по п.1, отличающийся тем, что продолжительность периода «искусственной зимовки» составляет два месяца, в течение которых сначала постепенно с градиентом снижения 1°С в сутки снижают температуру воды от 20-22°С до 6-10°С, выд1. The method of formation and operation of the broodstock of pike perch, which consists in spawning of producers, incubation of the milled and fertilized eggs, growing of larvae and subsequent rearing of juveniles, characterized in that four groups are formed from juveniles of the same generation, which contain 20-27 ° С in water while the young of the first, second, third and fourth groups are transferred to the regime of keeping the first “artificial wintering” at the age of four, seven, ten and thirteen months, respectively, the duration of the “artificial wintering” “wintering” is two months, during which the water temperature is set at 6-10 ° C, when entering or leaving the “artificial wintering” mode, the water temperature is changed with a gradient of 1 ° C per day, the second and subsequent “artificial wintering” in the groups are set according to every twelve months from the start date of the previous “artificial wintering” of the corresponding group. 2. The method according to claim 1, characterized in that the larvae are grown at a planting density of 25-30, fry at a planting density of 3-5 thousand pieces / m. 3. The method according to claim 1, characterized in that the juveniles of the first, second, third and fourth groups are transferred to the “artificial wintering” mode when they reach an average weight of 20, 110, 250 and 600 g, respectively. The method according to claim 1, characterized in that the second, third and fourth groups of juveniles are grown at a temperature of 20-22 ° C. before transferring them to the first “artificial wintering” mode. The method according to claim 1, characterized in that the duration of the “artificial wintering” period is two months, during which the water temperature is gradually gradually reduced from 20-22 ° C to 6-10 ° C with a gradient of 1 ° C per day;

Claims

1. The method of formation and operation of the broodstock of pike perch, which consists in spawning of producers, incubation of the milled and fertilized eggs, growing of larvae and subsequent rearing of juveniles, characterized in that four groups are formed from juveniles of the same generation, which contain 20-27 ° С in water while the young of the first, second, third and fourth groups are transferred to the regime of keeping the first “artificial wintering” at the age of four, seven, ten and thirteen months, respectively, the duration of the “artificial wintering” “wintering” is two months, during which the water temperature is set at 6-10 ° C, when entering or leaving the “artificial wintering” mode, the water temperature is changed with a gradient of 1 ° C per day, the second and subsequent “artificial wintering” in the groups are set according to every twelve months from the start date of the previous “artificial wintering” of the corresponding group.

2. The method according to claim 1, characterized in that the larvae are grown at a planting density of 25-30, fry at a planting density of 3-5 thousand pieces / m ² .

3. The method according to claim 1, characterized in that the juveniles of the first, second, third and fourth groups are transferred to the "artificial wintering" mode when they reach an average weight of 20, 110, 250 and 600 g, respectively.

4. The method according to claim 1, characterized in that the second, third and fourth groups of juveniles are grown at a temperature of 20-22 ° C. before transferring them to the regime of the first “artificial wintering”.

5. The method according to claim 1, characterized in that the duration of the "artificial wintering" period is two months, during which the water temperature is gradually gradually reduced from 20-22 ° C to 6-10 ° C with a decrease gradient of 1 ° C per day. , withstand it for 30 to 40 days, after which at the end of the period of “artificial wintering” increase the water temperature to 20-22 ° C with the same gradient.

6. The method according to claim 1, characterized in that upon completion of the first "artificial wintering" in the first group, the planting density is reduced to 100 pcs / m ³ , in the second group to 60 pcs / m ³ , in the third group to 40 pcs / m ³ , in the fourth group - up to 20-30 pcs / m ³ and cultivation until the next “artificial wintering” in all four groups is carried out for 10 months, at a water temperature of 20-22 ° C.

7. The method according to claim 1, characterized in that the second "artificial wintering" in groups is carried out while maintaining a planting density the same as in the previous growing period.

8. The method according to claim 1, characterized in that at the end of the second "artificial wintering" in the first and second groups, the landing density of juveniles is reduced to 40 pcs / m ³ .

9. The method according to claim 1, characterized in that the third and fourth groups during the second “artificial wintering” period by the end of the time period when the temperatures are kept at 6-10 ° C are transferred to the pre-spawning mode, for which 5-10 days, the water temperature with a gradient of 1 ° C per day is increased to 15 ° C, then maintaining the water temperature for 15-17 ° C for 2-3 weeks is distinguished by the appearance of signs of female readiness for spawning, while the females and males are kept separately, and upon reaching the maximum manifestation of signs of female readiness for spawning attack dissolved to obtain mature sexual products or spawning.

10. The method according to claim 1, characterized in that the first and second groups are taken to spawn after the third "artificial wintering".