CATDOLL : CATDOLL: The longer the photoperiod, the faster the fish grow?

1. The longer the photoperiod, the faster the fish grow?

All things cannot grow without light, and fish are no exception. The color change of fish is the result of light; the healthy growth of fish also depends on the help of light. Therefore, if you want to keep fish healthy and beautiful, you must let them receive light. The light here includes both sunlight and artificial light in the home.

Tropical fish are very sensitive to sunlight.

The same tropical fish will show different colors when living in a strong light environment and a weak light environment. The color depth of many tropical fish is closely related to the light intensity.

2. Termite growth cycle diagram?

It takes about a month from the time the wingless reproductive ants lay eggs to the birth of the first-instar ants. After several moltings, the ants can become adult worker ants and soldier ants in about a month.

Reproductive ants, also known as reproductive ants, refer to sexual female ants and male ants. Their duties are to maintain old colonies and create new colonies. They are divided into two categories: original reproductive ants and supplementary reproductive ants.

3. Growth cycle diagram of mallard duck?

The rearing period of mallard ducks mainly refers to the period from the end of the brooding period (15 days) to the slaughter and marketing at 84 days of age. According to their growth patterns, this period can be divided into three stages, namely: early growth period (16-35 days), late growth period (36-70 days), and maintenance period (71-84 days). During the rearing period, each commercial duck consumes about 7-7.5 kg of feed.

1. Early growth period

This period is a critical period for the weight growth of mallards. The quality of feeding and management during this period directly affects the final production results. In late spring and early summer, after the ducklings are transferred from the brooding room to the rearing house, the environmental temperature changes greatly. In order to prevent the ducklings from contacting the cold ground at night, straw must be laid in the rearing house. The straw must be dry, soft, and replaced regularly. In terms of feed, in order to meet the needs of rapid weight growth, a diet with high energy and protein levels must be provided. Where conditions permit, an appropriate amount of green hay powder should be added to the feed to increase the crude fiber content in the diet, thereby promoting the development of the ducklings' digestive organs and maintaining their digestive function.

As the growth rate of ducklings accelerates, the density should be adjusted in time. The following data can be used as a reference for adjustment: 8 to 10 ducks per square meter at 2 weeks of age, 6 to 8 ducks per square meter at 3 weeks of age, 5 to 6 ducks per square meter at 4 weeks of age, and 4 to 5 ducks per square meter at 5 weeks of age.

2. Late growth

The growth rate in the later stage of growth is slower than that in the earlier stage. Therefore, in order to reduce the feeding cost, the protein and energy level of the diet can be appropriately reduced. The specific method is to reduce the content of corn and soybean cake in the diet, increase the amount of bran appropriately, and the feed should be changed slowly, generally controlled to replace 20% of the original formula every day.

In the later stage of growth, the stocking density should be 3 to 4 per square meter.

3. Maintenance period (molting period)

The main feature of this period is slow growth. The intake of nutrients is mainly used to maintain body weight and molt. The duration and completion of molt directly affect the age of slaughter and carcass quality (commercial grade), so the feeding and management during this period cannot be relaxed.

The measures that can be taken are:

⑴ Ensure the temperature of the ducklings' growth environment (13-25℃). Too high or too low a temperature will increase the feed consumption for maintaining body weight and body temperature, and too high a temperature can also cause hair loss. ⑵ Ensure the content and quality of protein in the diet, especially the content of sulfur-containing amino acids in the protein, so as to meet the needs of feather growth for sulfur-containing amino acids. ⑶ Ensure the concentration of metal ions related to feather growth, such as copper, zinc, and manganese, in the diet. With the completion of the molting and feather growth process, the wildness of the mallards flying and fleeing becomes more and more obvious. Therefore, the duck house for raising and breeding ducks and the outdoor playground must be covered with nylon or welded mesh to prevent the ducks from escaping.

For ducks that are rearing in the summer, special attention should be paid to ensuring the cleanliness of the pens and drinking water, and moldy feed is prohibited because mallards are more sensitive to Aspergillus disease.

4. Watermelon growth cycle diagram?

Hello everyone, here is the watermelon growth cycle diagram:

What stages can the growth cycle of watermelon be divided into? It is generally believed that the entire growth period of watermelon can be divided into several periods, including germination period, seedling period, vine growth period and fruiting period. Below we introduce them one by one for your reference.

The first seed selection period: Before watermelon seedlings are raised and sown, seed treatment mainly includes steps such as seed selection, seed drying, seed disinfection, and seed soaking and germination.

Seed selection: sieve to remove unfilled seeds before seed processing.

Seed drying: Before sowing, choose a sunny day and expose the seeds to the sun for 1 to 2 days between 9:00 and 15:00. This will improve the water absorption and permeability of the seeds.

Disinfection usually adopts two methods: wet heat treatment and chemical treatment:

(1) Wet heat treatment, including warm water soaking and hot water blanching. Warm water soaking: Soak the seeds in 55℃ hot water (two parts boiling water and one part cold water) and stir continuously, keep the water temperature at 55℃ for 15 minutes, then let the water temperature drop naturally and continue soaking for 6~8 hours. This method can kill bacteria on the surface of the seeds and inactivate viruses.

Hot water blanching seeds: When using 75℃ hot water to blanch seeds, pour the hot water back and forth until the water temperature drops to 55℃, then stir continuously and maintain the water temperature for 7~8 minutes. The rest is the same as soaking seeds in warm water.

(2) Chemical treatment is usually carried out after soaking the seeds. The main chemical treatment methods are as follows: soaking the seeds in 500 times diluted 50% carbendazim wettable powder for 1 hour or 100 times diluted 40% formaldehyde aqueous solution for 20-30 minutes to prevent anthracnose and wilt. Soaking in 2%-4% bleaching powder solution for half an hour can kill bacteria on the surface of the seeds.

Soaking seeds in appropriate concentrations of sodium hydroxide, trisodium phosphate, mancozeb, potassium permanganate, copper sulfate, etc. can passivate the viruses on the seed surface.

The second germination period: from seed germination to cotyledon expansion and true leaf appearance. After the seedlings emerge from the soil, excessive growth should be prevented to promote the development of roots and leaves.

The third seedling stage: from the emergence of true leaves to the 5th to 6th leaf stage. The growth is small during this stage, and good conditions should be provided to promote the differentiation of seedling roots and organs.

The fourth vine-growing period: from the vine-growing of 5-6 leaves to the opening of the female flowers at the melon-retaining node is the vine-growing period. The growth rate is fast and the growth volume is large during this period. In cultivation, it is necessary to promote the growth of stems and leaves to form a certain nutritional system. At the same time, it is necessary to control excessive growth to ensure the formation of flower organs.

The fifth fruiting period: from the opening of the female flowers at the flower node to the beginning of vigorous fruit growth. It can be divided into three periods: fruit setting period, vigorous fruit growth period, and pulp change period.

The sixth fruiting period: from the opening of the female flowers at the melon-leaving node to the beginning of vigorous fruit growth. Photosynthetic products begin to enter the fruit. In cultivation, the main thing is to adjust the balance between vegetative growth and fruit development to ensure fruit setting.

The seventh fruit vigorous growth period: from the rapid growth of the fruit to the basic fixed size of the fruit. During this period, the fruit grows a lot and absorbs the most nutrients. It is a critical period for forming yield. In cultivation, large amounts of fertilizer and water should be given to promote rapid growth of the fruit.

The eighth fleshing stage: from the time when the fruit size is basically fixed to the time when it matures. During this stage, sugar is rapidly converted and the appearance has the inherent color of the variety. In cultivation, premature senescence of stems and leaves should be prevented to ensure yield and quality.

This is the end of the introduction to the stages of the watermelon growth cycle! I hope it will be helpful to you.

5. Rose growth cycle diagram?

Rose is not a climbing plant, so its climbing speed is relatively slow. It usually takes 3 to 5 years to climb all over the wall. In addition, the time it takes to climb the wall is also related to the size of the wall and the maintenance method. If it is an ordinary wall, it only takes about 3 years to climb the entire wall. If the wall is relatively large and the growth speed of the rose is slow, it will take 5 years to climb all over the wall.

6. Peacock growth cycle process diagram?

It is reported that it is generally around 22 months.

1. Growth and development period

The growth and development period can be divided into the following stages:

Brooding period - refers to the stage of young peacocks from 0 to 1 month old;

Rearing period - refers to the early stage of rearing between 2 and 8 months of age;

Reserve peacocks - refers to the late breeding stage of 8 to 22 months old;

Egg-laying period - Peacocks enter the egg-laying period after they grow to 22 months of age.

2. Egg-laying period

The breeding season of peacocks is obvious. In my country, the egg-laying period of peacocks is generally from April to August, and the feathering period is from September to December. During the breeding period, the daily egg-laying time is mostly concentrated between 17:00 and 19:00, and the annual egg-laying capacity of each peacock is 20 to 30 eggs. This shows that the reproductive capacity of peacocks is poor.

7. Shiba Inu growth cycle chart?

After the puppy period (2.5-3 months) at 2 months old, the baby enters the awkward period - the awkward period at about 10 months - this period is also called the rapid growth period! The hair will appear less and the proportion will appear thinner and taller! After 10 months, the baby enters the slow growth period and the baby is fully developed at about 1.5 years old.

8. Growth cycle trend chart of laying hens?

Laying hens start laying eggs at around 120 days of age, and reach their peak after 1 to 2 months. The peak period can last for 3 to 4 months, and laying hens will be eliminated at around 16 months.

9. Diagram of the growth cycle of guppy?

There are many varieties of guppies, and different varieties have different growth stages. Under normal circumstances, most guppies take at least three months and up to six months to grow into adult fish. They have completed their development at 4 months old, and the fish are basically mature at this time. Whether it is complementary color, tail shape or body shape, they have reached the best state, so fish at this stage are generally selected for breeding.

2. How long can a guppy live?

Guppies can live for about 2-3 years. They are typical small tropical fish with a short growth cycle and a short lifespan. However, they have strong adaptability and can live in fish tanks without oxygen and temperature control, and can also tolerate low temperatures of 16°C and living environments with poor water quality.

They have strong reproductive capacity and no specific breeding season. They can reproduce all year round as long as the surrounding environment is good. They are sexually mature in about 2-3 months. Their best breeding age is 5 months old. Generally, they reproduce once a month. The female fish can give birth after about a month of pregnancy. Each time, 10-120 small fish can be produced. It should be noted that during the breeding period, the small fish should be separated from the parent fish, otherwise the small fish are likely to be eaten by the parent fish.

10. Standard weight chart for German Shepherd’s growth cycle?

1. When German Shepherds are one month old, female German Shepherds weigh about 3-4 kg and male German Shepherds weigh about 4-5 kg.

2. At three months of age, female dogs weigh 7-8 kg and male dogs weigh 8-9 kg.

3. Basically, by the age of six months, female dogs can reach 22-23 kg, and male dogs are around 25-26 kg.

4. When German Shepherds reach adulthood, male dogs can reach 30-40 kg, and female dogs are around 25-32 kg.