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Broiler market 2016: demand grows at year-end but heavy earlier stockpiles make a reversal hard
2016 broiler price market: demand grows at year-end but heavy earlier stockpiles make a market reversal hard
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Why do female swordtail fish undergo sex reversal?
The so-called "sex reversal" of female fish refers to the gradual masculinization of some female fish that have given birth to fry: the body becomes slender, a sword-shaped protrusion grows below the caudal fin, the anal fin transforms into a rod-shaped gonopodium, and they begin to chase female fish, mate with them and fertilize them, and reproduce offspring. But it is only female fish turning into male fish; male-to-female reversal has not been observed. Regarding this issue, some people have recently raised different opinions: they believe that swordtail fish cannot undergo sex reversal, and their natural male-to-female ratio is always 1:2 to 1:1.5. Although the reproductive organs of swordtail fry begin
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What are the triggers of sex reversal in rice field eels?
Triggers of sex reversal in rice field eels
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Reversal of domestic and international grain prices: Chen Xiwen suggests taking a rational view
All sectors of society are very concerned about the grain issue, so I will focus on this issue. From the perspective of the domestic production situation, this year is the 12th consecutive year of grain production increase. Output is expected to reach about 1.23 trillion jin. Compared with 12 years ago, annual output has increased by more than 360 billion
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