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The Role of Hormones in Reproduction
Evaluation of Semen by Chemical Analysis
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abnormal acid Almquist ampoules Anim artificial breeding artificial insemination artificial vagina average beef cattle bees boar Bovine Breeders buffalo bull buffalo semen Bull Semen calves cells cent cervix conception rate corpus luteum cows Dairy Bulls Dairy Sci diluent diluted semen drones Effect ejaculate electroejaculation estrogen estrous cycle estrus ewes Expt factors female fertility Figure freezing frozen semen fructose genes genetic glycerol Goats heat period heifers herd hormone inbreeding increase injection lactation large number liquid nitrogen liquid semen Mackensen male mare method milk motility natural mating normal obtained organizations ovaries oviduct ovulation pellets penis percentage pituitary gland Poultry Sci pregnancy Proc production progeny progeny-tested progestogen ram semen Reprod reproductive rubber secretion Semen Characteristics semen collection semen quality seminal sexual Sheep sires sperm concentration spermatozoa stallion sterile stilbestrol stimulation storage stud syringe teaser technique temperature tion turkey uterus workers