The purpose of management during this period is mainly to: improve sow body condition, make it normal estrus, discharge good quality eggs, achieve timely breeding, increase estrus conception rate and number of embryos conceived, shorten the birth interval, and increase each sow The number of l…

When artificial propagation of tilapia is artificially propagated, the overwinter broodstock can be moved to outdoor breeding ponds when the water temperature rises to about 20°C in the spring. The breeding pond area should be 1-2 mu and the water depth is 1.5 meters. Because the tilapia ha…

One, quail, also known as the root worm (the adult larvae larvae). l. Symptoms: adult lice of crickets are oligophagic and harmful to lily plants. When larvae are harmed, bulbs or seedlings of leeks etc. are invaded and the bulbs are smashed into many holes; rot is caused and the upper leaves …

The four-seasonal jellyfish is a perennial herbaceous flower, which can be continuously flowered in four seasons. The flower is delicate and beautiful, the petals are shaped like seeds, and the seeds of the seeds are aliases. The four-season crabapple plant is short in stature, and can produce…

There are many types of wild ducks. At present, the main domesticated domestic ducks are American mallard ducks. The mallard duck is tender, delicious, and has less fat. It is a traditional nourishing food and game dish. This wild duck grows fast. The average weight of 70-day-old ducks can rea…

Scientists have found in the world’s largest study on the impact of genetically modified wildlife on the world to date that GM rape has a greater risk for wild flowers, butterflies, bees and even birds than non-GM rape. The British scientists working on the study wanted to emphasize tha…

Broodstock breeding is divided into postpartum care, autumn cultivation, winter cultivation and spring cultivation. Due to the low temperature in winter, the activities of broodstock are reduced, the feeding capacity is relatively high, and fish diseases are prone to occur; if the management i…

The growth characteristics of the aging apple trees are that the young shoots have a small amount of growth, many branches, many flower buds but few results, and the branchlets in the inner canthus group are dead and dead. The result shows that the parts of the shoots are obviously moved outwa…