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How to confirm ovulation in sows? A detailed guide to practical judgment methods
Before a sow ovulates, she opens her cervix and releases the waste from inside the uterus; at this point you will see some sticky matter like nasal mucus. When the uterine waste is fully discharged and the vulva is relatively clean with only a thin fluid remaining, she has entered the ovulation period. You can also determine her ovulation time by the sow's estrus
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Detailed Explanation of Key Technical Points for Artificial Ovulation Induction in Mullet
(1) Basic Principles Artificial ovulation induction is also called induced spawning. Commonly known as spawning induction, etc. It refers to the use of artificial methods to inject drugs into broodstock fish whose gonads have developed to maturity, stimulating the gonads to further mature and release, thereby obtaining mature eggs (or male fish sperm). Accurately grasping the spawning induction season, selecting broodstock suitable for induced spawning, injecting effective doses within the appropriate temperature range - these are the necessary conditions for artificial induced spawning. Whether the spawning induction technique is appropriate or not affects the fertilization rate of fish eggs, the hatching rate, as well as the spawning success rate and post-spawning
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What are effective methods to promote estrus and ovulation in sows?
How can estrus and ovulation be promoted in sows?
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