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Observation of the embryonic development process of Neosalanx taihuensis
In order to master the artificial breeding technology of Neosalanx taihuensis and improve the success rate of stock enhancement and release of icefish, we conducted systematic observation experiments on the development process of fertilized eggs of Neosalanx taihuensis. The experiment report is as follows: 1. Materials and Methods 1. Materials: The fertilized eggs of Neosalanx taihuensis used in the experiment were obtained from the artificial breeding base of Neosalanx taihuensis at Xintang Bridge, Zhicheng Town, Changxing County, and the incubation water was filtered water from Basan Reservoir. 2. Time: April 30 to May 13, 1999,
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Five observation points when feeding rabbits
One, look at the rabbit's size. Generally, an adult rabbit weighing about 3.5 kg needs 150-200 g of feed per day; a young rabbit weighing about 1.75 kg needs 100-150 g of feed per day. The ideal moisture level of the feed is when it lightly holds together when squeezed and falls apart when the hand is released. Two, look at whether the rabbit is fat or thin. For fat rabbits, appropriately reduce the amount of concentrated feed and increase green fodder or roughage; for thin rabbits, supplement nutrition and feed more concentrated feed. You can also feed some soaked soybeans, or mash bean dregs, mix them with boiling water, and stir them into the feed for the rabbits. Three, look at whether the feces are dry or wet. If the rabbit's
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Mushroom water management should be reasonable, pay attention to the nine observations and nine avoidances
Mushroom water management should be reasonable, pay attention to the "nine observations and nine avoidances"
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Five observations to tell whether a watermelon has set fruit
First, look at the female flower's morphological features. In early-maturing watermelon varieties, the ovary is generally round (a few are oblong); female flowers with few hairs, a thick and long fruit stalk, and larger petals set fruit easily. For oval-fruited melons (mostly mid- to late-maturing varieties), the ovary is oblong, and female flowers with many hairs, a thick and long fruit stalk, and large petals set fruit easily; otherwise they set fruit with difficulty...
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How to water button mushrooms? Mastering the five key points of observation is essential
First, observe the weather conditions. In sunny and dry weather or when the temperature is suitable, water more; in rainy weather or when the temperature is too high or too low, water less or stop watering. Second, observe the mushroom house conditions. Mushroom houses with serious air leakage and poor insulation should be watered more and ventilated less; mushroom houses with little air leakage and strong moisture retention should be watered less and ventilated more...
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Raise pigs with plenty of observation: 10 simple methods to help you spot pig diseases
When raising pigs, remember to observe more: 10 simple methods to detect pig diseases
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When do geese need supplemental feeding? Master the three-observation method
When do geese need supplemental feeding? Feeding geese supplements requires "three observations"
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Supplementary feeding for laying ducks must be done according to the symptoms; master the four observation techniques
Supplementary feeding must also be done according to the symptoms. To supplement feed for laying ducks, you need four observations
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What observation precautions should be taken after a sow gives birth?
Observation precautions after a sow gives birth
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Strengthen observation of the flock when raising chickens in the orchard
When raising chickens in the orchard, it is necessary to strengthen observation of the flock
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