The problem of the best selling time for pigs
Naturally, the purpose of engaging in commercial pig breeding and pig breeding is to make as much profit as possible. therefore, whether and how to maximize profits are the first issues that breeders must consider. If factors such as the level of breeding technology and the type of pigs are ignored, and the changes in market demand are not taken into account, then one of the main factors affecting profits is how to choose the selling time of pigs, that is, when to sell the most profitable. Some people may think that the bigger the pig, the greater the profit after sale. In fact, shrewd breeders all know that with the growth of pigs, the cost of feed per unit time will be more and more, but at the same time, the rate of increase in weight will continue to decline, and the sales price will not increase with the increase in body weight. so it's not cost-effective to keep for too long. Try to make appropriate assumptions and establish a mathematical model of the best selling time for pigs.
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Liriodendron chinense in Phnom Penh
Phnom Penh Liriodendron Liriodendron'Aureomarginatum' Magnoliaceae, Liriodendron. Introduction site: Holland. Large deciduous trees, up to more than 20 meters high, are horticultural varieties of Liriodendron mandshurica. The margin of spring leaves is golden and turns green gradually in mid-June; the flowers are tender yellow. The florescence is June, and the flower is shaped like a tulip. Like light, not resistant to water and moisture, should be planted in the deep soil layer. It is generally cultivated as street trees or isolated planting.
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Add food to pigs in summer night and gain weight quickly
It is hot in summer, and feeding pigs at night gains weight faster than feeding pigs during the day. This is because the cool weather at night, less external interference, help pigs eat more, sleep more, and reduce daytime activities. The following points should be mastered for increasing food at night: generally, three times of feeding can be done at 19:00, 23:00 and 4 am, and 0.5% of brine is fed at 10:00 and 2 pm respectively during the day. Feed ratio of wheat flour 20%, corn meal 20%, wheat bran 26%, cottonseed cake 30%, fish
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