Genetic factors and feeding patterns on body weight of rats in length: Any red love (1967), female, Mengjin, Henan Province, lecturer, involved in physiology teaching and research work. (Female n = 9, male n = 9), 1:1 ratio matching, were housed separately, natural mating, pregnancy, pregnancy with free drinking water, eating under natural light. 1.2 pups deal with each nest pups to retain six randomly divided into two groups (self-raising group 3 served as a control, feeding group 3), cross-group rat tails marked, and was fed to female rats of feces wiped all over the body, to prevent rats identification. Cross with two groups of pups born on the day. 1.3 feeding practices greatly groups and small groups to give exactly the same normal diet, normal diet consists of: 27% cornmeal, 25% soybean meal, ghd outlet, wheat flour 10%, 8% of the sorghum flour, wheat bran 22%, moncler, 5% fish meal, bone meal 2%, salt 1%. Pups to milk and normal diet for food. 1.4 OUTCOME MEASURES All pups were born with a ruler, an electronic balance DT 500 measuring height and weight; after birth, every 20d measuring length, ugg outlet, weight 1; all maternal postpartum 1d, 10d, 20d, 30d, The tails blood 1IIll, heparin (1:500) anticoagulant, 30oOr/min, centrifugal 30min separated plasma in the early morning, a 20cc refrigerator, the end of the experiment, using radioimmunoassay 96 JHenanUnivSciTech (MedSei) June20O5Vo1.23No. Two unified determination of the content of the maternal plasma growth hormone (GH). 2 results of breast-cross-feeding on offspring length (cm) had no significant effect (P> 0.05) in Table 1. Breast milk cross-feeding on offspring body weight had no significant effect (P> 0.05), ugg boots italia, are shown in Table 2. Substantially group and small group pups (cm) in length and weight (g), compared in Table 3. Can be seen from Table 3, greatly group and small group offspring body length and weight, Pandora Gioielli Roma, the difference was significant (P <0.05). Changes in plasma GH content in the two groups of female rats before and after childbirth in Table 4. Table 1 breast milk cross-feeding pups in length (hoe) (-iS., L = 27) Table 4 two sets of maternal plasma GH content 3 factors that affect height, weight, congenital factors and acquired factors. Congenital genetic; acquired nutritional factors, gender, disease, exercise, national, regional, standard of living, social environment, climate factors ... 1. Observation and evaluation of height, weight, growth and development is reflected from the side. In addition to genetic factors, height, weight and nutrition supply in the nutrient supply is sufficient, whether the intake of more nutritious, mainly to see the function of the gastrointestinal tract. The main function of the gastrointestinal tract depends on the growth and development speed of the gastrointestinal tract, gastrointestinal tract growth and development speed by a variety of hormonal regulation, including adrenocorticotropic hormone, thyroxine, GH, and gastrointestinal hormones. They play a regulatory role through direct stimulation or intestinal nutrients, growth factors synergistic. Various hormones play a role, through their respective receptors play a role in [3J. This study shows that the large maternal plasma length weight of GH were significantly higher than smaller length, body weight of female rats. Logically speaking, the cross-feeding, the respective growth rate should be changed. The results of this study show substantially group of mice born offspring length, weight greater than / J-/ J-, group of mice born offspring length, weight (P <0.05). Mice born offspring, two groups of species cross-feeding, no significant difference between the two groups. Genetic factors play a decisive role of the length weight. The possible reason is that genetic factors not only affect the hormone levels in the blood, but also affect the number of receptors in the gastrointestinal mucosa. Offspring gastrointestinal development of different sizes at different speeds, the number of nutrition, and thus the growth and development at different speeds. Therefore, the individual length and weight and congenital factors and acquired factors. If we really want to change the children and even a nation’s height, weight status, we must solve the genetic problems of manpower.