-
Analysis of Why a Shorter Rearing Period Is Better for Growing-Finishing Pigs
Under good feeding and management conditions, lean-type pigs generally need 100 to 120 days to go from 20 kg to the market weight of 100 kg. In China's intensive and standardized pig farms, it generally takes about 110 days to go from 20 kg to 100 kg, and the age of pigs from birth to the market weight of 100 kg is 160 to 180 days, greatly shortening the finishing period. The benefits of this are as follows. 1. High daily gain and high feed efficiency. Lean-type pigs grow quickly. If a complete feed with comprehensive nutrition is provided, their productivity potential can be fully
-
Detailed Explanation of Key Technical Points and Management Methods for Fish Fry Rearing
After the summer fry are divided into ponds, the 1-year-old fingerlings reared until the end of the year to a size of 12-15 cm and a body weight of 30-40 g are called spring fingerlings. The growth cycle of black carp and grass carp is 3-4 years, and in some places the 1-year-old fingerlings are reared into 500 g 2-year-old fingerlings. 1. Fingerling ponds: To rear large-size fingerlings, it is recommended to build dedicated fingerling ponds with an area of 3-5 mu and a water depth of about 2 m. The preparatory work before the summer fry are stocked into the ponds is the same as for fry ponds. 2. Stocking: There are two methods, monoculture and polyculture. Polyculture is generally adopted. For ponds mainly stocked with common carp, common carp 6
-
-
What are the key points of mulberry leaf feeding techniques in young silkworm co-rearing?
In the process of young silkworm co-rearing, mastering feeding techniques and ensuring proper nutrition is the key to ensuring young silkworms develop robustly and uniformly. Carefully select mulberry leaves according to the leaf standards for each instar, selecting in the field and selecting on the tree. Choose non-toxic, pollution-free, insect-free, appropriately mature leaves from the upper new shoots. Before leaf preparation, perform a second careful selection, removing leaves that are too old, too tender, wilted, or secondarily contaminated and thus below standard. Planned preparation and storage of leaves for young silkworms During leaf preparation and storage, keeping mulberry leaves fresh and with sufficient moisture is very important. Low-temperature running-water leaf storage
-
How Do Silkworms Spit Flat Silk? A Detailed Guide to Rearing Techniques
Flat silk can be directly processed into calligraphy and painting silk paper, silk pasted mount, silk floss quilts, and various handicrafts, and can fetch a better price than ordinary silk products. So how can silkworms be made to spit flat silk? The method is: during the silkworm rearing process, do not provide cocoon-spinning mounts; instead, place the silkworms on a flat surface, and they will naturally spit and accumulate silk into a flat shape; then after degumming, it is done. Below are several points to note for making silkworms spit flat silk: Preparation of the flat surface: before the silkworms mature, for each box of eggs prepare 35-40 sq m of flat surfaces such as reed curtains and bamboo curtains. And
-
Rearing of Adult Snakehead Fish
The snakehead fish is a valuable freshwater fish of high economic value, known as the "treasure among fish." It is highly nutritious, containing large amounts of protein, more than that found in chicken and beef. From a nutritional standpoint, the snakehead fish is a comprehensive-nutrition, delicious-tasting premium health food. Rearing of adult snakehead fish refers to the production process of raising fingerlings to food-fish size in small water bodies such as ponds, pools and cages. Artificial cultivation of snakehead fish includes two methods: extensive polyculture and intensive monoculture. Extensive polyculture means culturing them together with the four major Chinese carps in fish ponds. Intensive monoculture
-
Rearing Methods and Technical Key Points for Squabs and Young Pigeons
In the initial stage, squabs are best fed fine-particle softened feed. This feed is prepared by crushing corn, mixing it with rice and beans, soaking it in clean water for 2 to 3 hours, and drying it before feeding. The health grit must contain a complete range of trace elements. Some multivitamins can be added to the drinking water. Set up a brooding bed, and pay attention to keeping warm, blocking wind, and keeping dry; generally, they are raised in the brooding bed for about 20 days. Squabs at 50 days of age begin to molt; at this time they are sensitive to external climate changes and prone to illness, so work on cold protection and warmth must be done well. Add some
-
Detailed Explanation of Key Technical Points for Winter Rearing of Broodstock
Broodstock rearing is divided into stages including post-spawning care, autumn rearing, winter rearing and spring rearing. Because winter temperatures are low, broodstock activity decreases, feeding capacity is weaker and fish diseases occur easily; if management is poor, it greatly affects the next year's production links such as artificial incubation, fry and fingerling production and grow-out fish farming. The key technical points for doing a good job of winter broodstock rearing are: 1. Pond selection. Broodstock ponds require an adequate water source, a flat pond bottom, shelter from wind and exposure to sun, and good water and heat retention, with an area of 10-15 mu being suitable. 2
-
Detailed Explanation of Key Techniques for Autumn Grass Carp Broodstock Rearing
In autumn and winter, the sex cells of grass carp broodstock are in the growth and development stage. The quality of feeding and management during this period directly affects the maturation of the gonads, the spawning induction results the following year, and the fertilization rate and hatching rate of the eggs. For this reason, the rearing of grass carp broodstock in autumn and winter should focus on the following points. 1. Pond preparation. The pond for rearing grass carp broodstock should be close to the spawning pond and have a good water source. The pond area is generally 3-4 mu, with a water depth of 1.5 m. Before stocking the broodstock, the pond should be cleaned and renovated, the pond embankments repaired, weeds removed, and the pond disinfected with quicklime or bleaching powder and other chemicals.
-
Butterfly Farming Techniques Explained: Environmental Management and Rearing Methods
Butterfly Farming Techniques
条件筛选