The Breeding of AnimalsMacmillan, 1917 - 310 頁 The cell. Reproduction. The Breeding season. Gestation and lactation. Fertility. Sterility. Heredity. Inheritance of acquired characters. Heredity and sex. Variation. In-breeding. Cross-breeding. Development. The practice of breeding. |
其他版本 - 查看全部
常見字詞
abortion acquired characters animal-breeding appearance average birth body bred breeder breeding animals bull calves cattle causes cell division cent chromatin chromosomes cross Darwin disease domestic animals ewes Fallopian tube fecundity feed female fertility foetus germ germ-cells germ-plasm gestation glands growth heat herd heredity Holstein Friesian horns horse foals hybrid important improvement in-bred in-breeding increase individual influence inheritance investigation lactation lambs large number litters male mammæ mammals mammary glands mare mating mature mendelian inheritance ment Missouri Experiment Station months mother mule foals mutations nucleus number of young offspring organs ovary ovum parent period of gestation physiological pigs plants Plate pounds practical breeder pregnant produced puberty pure line pure-bred qualities ration records reproductive result secondary sexual characters selection sheep sire sows species sperm sperm-cells spermatozoa spireme stallion sterility swine telegony tendency tion transmitted twins uterus vagina variations vulva weight