induced labor Learn more about induced labor
-
Basic knowledge of induced labor of Loach
Basic knowledge of induced labor of Loach
2018-07-04 -
Don't forget to protect the parent fish in order to induce labor.
Reducing the death of spawning parent fish is an important technical work for fish fry producers. In the production practice, we found that there are two reasons for the death of parent fish: first, the physical exertion of parent fish in the process of spawning and reproduction, coupled with the side effects of spawning drugs, reduce the resistance of parent fish, if the fish is seriously injured, a variety of pathogens will take advantage of the opportunity to infect the fish and cause disease, resulting in the death of the parent fish. Second, the physique of the parent fish is poor, the gonadal development is poor, or the water temperature changes greatly during the induction of labor, and the dosage of drugs used to induce labor is inappropriate.
2019-01-16 -
The three hurdles of parent fish in summer
The Beginning of Summer to Lesser Fullness of Grain is the best time for parent fish to induce spawning. at this time, the water temperature is suitable, the spawning rate and hatching rate of parent fish are high, and the survival rate of fry is also high after entering the pond. If we seize this favorable opportunity and strictly control the selection of parent fish, the use of drugs and the management of induced labor, the success of induced labor can be achieved. Whether the mature parent fish is mature or not determines the effect of spawning. When selecting parent fish, its maturity is generally identified according to its external characteristics. The belly of mature female parent fish is swollen, round, soft and elastic.
2019-01-15 -
Artificial ovulation induction technique of barracuda
(1) the basic principle of artificially induced ovulation is also called induced labor. Commonly known as aphrodisiac, green, and so on. The artificial method is to inject drugs into the mature gonadal parent fish to stimulate the gonads to further mature and discharge, so as to obtain mature eggs (or male fish sperm). Accurate grasp of the spawning season, selection of parent fish suitable for spawning, and the use of effective dose injection in the appropriate temperature range is a necessary condition for artificial spawning. Whether the spawning technique is appropriate or not affects the fertilization rate and hatching rate of fish eggs as well as the yield of parent fish and postpartum.
2019-01-16 -
Spawning technique of Loach
Spawning technique of Loach
2018-07-04 -
Artificial Propagation and spawning Technology of Monopterus Albus
Artificial Propagation and spawning Technology of Monopterus Albus
2018-07-04 -
Artificial spawning method of culturing black fish
Chorionic gonadotropin and pituitary gland of common carp, bighead carp and carp were injected into artificial labor. Common carp, bighead carp and carp pituitary are basically used as labor-inducing agents in the Pearl River Delta region. the doses per 0.5 kg body weight are: bighead carp and carp pituitary 7 (1 carp pituitary equivalent).
2020-11-08 Aquaculture black fish artificial induced labor method induced birth -
Breeding techniques of herring
Breeding techniques of herring
2018-09-08 -
The sow is difficult to give birth for 2 days, what if you can't take it out? Common treatment methods
Stillborn fetus: sows with continuous lochia and symptoms of delivery can connect the vas deferens with a syringe and inject saline with a concentration of 1% Mel 3% and a temperature of 36-38 ℃ into the uterine cavity of the sow, until salt water flows out of the sow, and then is used to induce labor.
2020-11-08 Sow dystocia 2 days out not out how to do attached common -
Management techniques of farming cattle in Spring
Management techniques of farming cattle in Spring
2018-07-06 -
What are we going to do if the sow doesn't have a cub on the day?
The failure of sows to give birth to babies may be due to delayed delivery, false pregnancy, fetal death and so on. If the production lags behind, Chloroprostol can be injected within 2 days after the expected delivery date to induce labor; if the false pregnancy, fetal death, can be detected by B-ultrasound. Cause the sow to overproduce.
2020-11-11 Sow day no calf what to do sow -
Techniques of raising carp
Techniques of raising carp
2019-04-30 -
What kind of koi is easy to breed and how to become a successful master of koi artificial breeding?
1. Parent fish cultivation (1) the specification area of parent fish pond is usually 15003OOOm, and the ground depth is 180200cm. (2) the parent fish should be more than 3 years old and have obvious species characteristics and strong physique. (3) separate culture of female and male under stocking conditions, the proportion is lvv 12; density control.
2019-05-21 -
The occupational diseases of farmers should not be ignored.
The problem of occupational diseases of farmers can not be ignored. For example, farmers who grow fruits and vegetables have more exposure to pesticides, which will induce blood diseases and skin diseases; farmers who grow rice will suffer from arteriosclerosis when they work for a long time in cold water with bare legs; and farmers who operate greenhouses will suffer from arteriosclerosis.
2016-03-20 Farmers occupational diseases can not be ignored farmers -
Seedling production of barracuda
The seedling production of mullet includes two steps: artificial propagation and seedling breeding. The former is divided into parent fish cultivation, induced spawning (artificially induced ovulation), artificial insemination, artificial hatching and other processes, while the latter is divided into two processes: fry cultivation and fingerling cultivation. In the study of artificial reproduction of grey mullet, the first artificial spawning of grey mullet was completed in Italy as early as 1930. It was not until the past 10 or 20 years that it attracted the attention of relevant countries in the world, and became an important topic in international biological research. China, the United States, India, the former
2019-01-16 -
Techniques for large-scale breeding of puffer fish
The puffer fish egg is small and the egg diameter is only 1. About 1 mm, high gonadal index and large number of eggs, which creates a prerequisite for large-scale breeding. Large-scale breeding should also grasp the following technical links: first, a sufficient number of parent fish with well-developed gonads.
2020-11-08 Aquaculture puffer fish scale breeding technology eggs small -
Techniques of carp culture
Techniques of carp culture
2018-09-08 -
Discussion on artificial breeding technology of catfish
Materials and methods 1. The original spawning pond and incubation pond of carp and crucian carp and four major domestic fish were used in the experiment site and facility. Fish nests with palm bark after cooking and disinfection are strung together with bamboo poles or ropes, hanging in the upper and middle layers of the spawning pond, and the bottom of the pond is covered with palm bark. two。 The source and cultivation of parent fish are mainly collected from wild fish species in Biliuhe Reservoir in Dalian City. Parent fish are cultivated and fed with freshwater mixed fish and mussel meat. The average weight of male fish is 500.
2019-01-15 -
Construction and shaping and pruning Technology of double-arm scaffolding for Pear trees in mountainous area
Technology of double-arm scaffolding and shaping and pruning of mountain pear trees Dehua County of Fujian Province is located in the middle of Fujian Province, which is a mid-subtropical monsoon area with cold winter and cool summer. It is an adaptive area for early-maturing pears in southern China at low latitudes and high elevations.
2018-05-28 -
Saving cost and increasing efficiency Technology to Save Maize production
Saving cost and increasing efficiency Technology to Save Maize production
2019-02-19