species ratio Learn more about species ratio
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Selection methods of common turtle species
Tortoise: it is required that the carapace of the male tortoise is black, the base of the tail is thick, and the depression in the bottom plate is long and deep; the tortoise of the female is short and thick, and the tail is thick and short, it is best to choose the tortoise over 8 years old, the weight of the female turtle is 350g, and the male tortoise reaches the age of gonadal maturity, the ratio of male and female is 2 ∶ 1 to 3 ∶ 1. Money tortoise: when choosing, hold it over with your hand, its head will stretch out very long, the thickness is uniform, and the eyes will move flexibly. The skin is bright, the temperament is gentle, the distance between the upper and lower nail of the tail is large, and the cloaca is wide. It is required that the turtle is over 6 years old, and the female turtle weighs 1250 grams ~ 150g.
2019-01-16 -
The feed formula for herring culture is mainly highland barley feed, and the feed ratio is different in different stages of culture.
The feed formula for herring culture is mainly composed of barley, corn, bean cake, fish meal, wheat bran, crude protein, silkworm pupa, rapeseed cake and wheat bran, and the feed ratio of herring is also different in different culture stages. The feed of herring
2020-11-08 Herring culture feed formula highland barley mainly each stage -
How to produce the strain of Tremella fuciformis
The producing areas of Duan Tremella are Tongjiang, Sichuan, Gutian, Fujian, Changbai Mountain in Northeast China and Huangshan Mountain in old Huizhou. The traditional method of planting white fungus is to plant Tremella fuciformis in the wild from March to April, connect it to the cut-down section of raw wood, raise bacteria for 80 to 90 days, and grow out of the ear from July to August. The growth of Tremella.
2018-09-10 -
Selection and conservation of carp species
Any good variety, if not pay attention to seed selection and seed conservation work, often will cause seed quality degradation, yield decline and other traits worse. Jian carp has stable genetic characters and can pass on the excellent dangerous state of this breed to the offspring through self-population breeding. However, different carp breeds are easy to mate and mix with each other, and there are differences among individuals of the same breed. Living environment will also have a greater impact on the traits of the breed. Therefore, we must pay attention to the breeding of improved varieties, according to the variety index, select the fish with good characteristics as parent fish breeding, and let them reproduce.
2019-01-16 -
What species of koi have spirituality? artificial reproduction of koi
Artificial reproduction of koi 1. Brocade carp were propagated naturally and parent fish of the same species with high quality and good pedigree were selected. The ratio of male to female was 1: (2-3) and put into an independent clear pool or cage to allow them to spawn naturally. 2. Koi artificial dry insemination selects the same product with high quality and good pedigree.
2019-05-21 -
The latest Cartland ramet propagation and daily management
Katrilan, a popular popular orchid found in tropical America, has 45,50 species and numerous hybrids. Catalan is the largest and most colorful species of tropical orchids, and it is known as the "king of orchids" in the world. After the horticulturist
2020-11-10 The latest Carter orchid branch plant breeding and daily management -
Breeding techniques of American partridges
Breeding techniques of American partridges
2018-07-07 -
Cultivation techniques of Ganoderma lucidum with mango sawdust
1. Scion selection: the scion is collected from the improved variety mother garden or adult mother tree. The mother plant requires pure variety, high yield, stable yield, high quality and no quarantine diseases and insect pests. All nurseries with suitable conditions should have ear picking nurseries, which are specially used for ear picking and ear grafting. Select branches for the crown periphery to the sun, strong growth, full buds, disease-free.
2018-09-12 -
Study on Seedling raising technique of Cinnamomum camphora with Light substrate net bag
Study on the technique of raising seedlings with Light substrate net bag of Cinnamomum camphora [Cinnamomum camphora (L.) Presl.] It is a large evergreen tree of Lauraceae. It is an excellent spice, valuable wood and street greening tree species. In recent years, it has gradually become.
2018-06-02 -
There are ways to rejuvenate weak fish species in autumn.
Due to the hot summer climate, aging water quality and feeding management and other reasons, the physique of fish species raised by many farmers is weak. If these weak fish species are not rejuvenated in time when the autumn is high and cool, it is not conducive to the overwintering of fish species, and will greatly affect the annual output in the coming year. Therefore, it is very important to rejuvenate weak fish species in autumn. The methods of rejuvenation of weak fish species in autumn are introduced as follows: after the high temperature season of turning ponds and Qingtang in spring and summer, the general water quality is aging, the natural organisms are reduced, and the harmful bacteria are increased, which is not conducive to the fish.
2019-01-16 -
How to cultivate Flammulina velutipes?
How to cultivate Flammulina velutipes? Ask experienced netizens to help introduce the detailed steps. Flammulina velutipes can be divided into three categories according to color: yellow species, light color species and white species. Flammulina velutipes, a kind of Flammulina velutipes, has pure white body and strong cold resistance. It can produce mushrooms below 15 ℃. The quality of mushrooms under 10 ℃ is the best.
2018-07-17 -
Feed species of freshwater crayfish
Feed species of freshwater crayfish
2018-07-04 -
How to eliminate pests in flowerpots? Control methods of common flowerpot pests
The pests in the flowerpot can never be killed? Why don't you try these tricks to get rid of potted pests easily?
2018-10-18 -
High efficient cultivation techniques of wide row and close planting of pear
Pear wide row dense planting and efficient cultivation techniques 1 the garden should be established in places with flat terrain, light loam, good fertility and good irrigation conditions. Soil preparation in the autumn of 2010, trenching machines were used to dig planting ditches with deep 80cm and wide 80cm, per 666.
2018-05-28 -
Ramet propagation and daily management of Cartland
Ramet propagation and daily management of Cartland
2020-07-16 -
Summer Flower of Grass Carp and cultivation of older size Fish species
Summer Flower of Grass Carp and cultivation of older size Fish species
2018-09-08 -
One article tells you: how does Rudong shed shrimp regulate the algal phase?
One article tells you: how does Rudong shed shrimp regulate the algal phase?
2019-02-20 -
Technical measures for releasing fish fry in winter
As the saying goes, "in spring, the fry has a plague, and in winter, the fry is three points longer." Practice has proved that the Winter Solstice to the Beginning of Spring is the best time to release fish species. There are three reasons: first, at this time, the fish species are strong, the scales are tight, and the adaptability is strong. Second, the water temperature is low, the activity of fish is weak, and the survival rate is high in the process of fishing and stocking. The third is to avoid the trouble of overwintering in the pond, so that the fish species can be evacuated and refined earlier, so as to promote the growth of early spring. 1. Transformation of fish ponds. Make use of winter leisure to transform fish ponds, small ponds into large ponds, dead ponds into living ponds, shallow ponds
2019-01-11 -
Design requirements and drawings of fish ponds
Design requirements and drawings of fish ponds
2018-09-08 -
Eight key techniques for reducing Feed coefficient in Aquaculture
Eight key techniques for reducing Feed coefficient in Aquaculture
2018-07-10