The need for nutrients is different: Roosters have less ability to deposit fat than hens, but roosters use proteins more efficiently than hens. From the age of 2 weeks, the protein level of the cock feed should be higher than that of the hens. The growth rate is different: The roosters grow fast. At 4, 6, and 8 weeks of age, the cock weight is 13%, 20%, and 27% higher than the hens, respectively. If the male and female polyculture, the weight is not the same size, food trough, drinking fountains require different levels, often overlooked. The environmental requirements are different: the rooster feathers grow slowly, and the hen feathers grow faster. Therefore, the temperature requirement of the rooster is higher than that of the hens in the early period, but lower than that of the hens in the later period; the rooster has a larger body weight than the hens, and therefore the chest The incidence of cysts is higher than that of hens, requiring litter looseness and proper thickening. The genetic performance is different: after 7 weeks of age, the hens have a relative decrease in growth rate, and the consumption of 1 kg per weight gain increases sharply. Therefore, the hens are sold at about 7 weeks of age and the feed utilization rate is high; the growth rate of the cocks after 9 weeks of age Only decline, so the best selling of 9-year-old cock. 18Mm Utility Knife,Auto-Lock Utility Knife Cutter,Professional 18Mm Utility Knife,Stainless Steel Utility Knife Shangqiu City Huashang Zhiyuan Tools Co., Ltd. , https://www.hszytools.com