Training Manual on Artificial Insemination in Sheep and GoatsReproductive physiology of sheep and goats; Factors involved in variation of reproductive characteristics; Artificial insemination of sheep and goats; Collection and preservation; Detection and control of oestrus and ovulation; Artificial insemination of ewes and does; Pregnancy tests, usefulness and accuracy. |
Contents
INTRODUCTION | 1 |
REPRODUCTIVE CHARACTERISTICS | 7 |
The testis and spermatogenesis | 17 |
Copyright | |
8 other sections not shown
Common terms and phrases
abnormal spermatozoa adult Alpine animals anoestrus artificial insemination artificial vagina breeding season breeds of sheep cervix Chemineau Colas collection tube Corteel decrease deep-freezing diluent dilution duration ejaculate embryo epididymis ewes feeding Figure flock follicle folliculogenesis genetic glands gonadotrophins hormone Ile-de-France increase individual motility injection intra-uterine insemination lambs liquid nitrogen liquid semen litter male sexual behaviour Merino method months number of spermatozoa oestrogens oestrous behaviour oestrus oestrus and ovulation oestrus detection onset oocyte ovary ovulation ovulation rate ovulatory percent percentage of abnormal photoperiodic PMSG pregnancy progestagen progesterone prostaglandin puberty ram semen rams and bucks Reprod reproductive activity seasonal breeders secretion selection semen collection seminal plasma Sertoli cells sexual season sheep and goats sires species sperm cells sperm concentration sperm production spermatids spermatogenesis spermatogonia spermatozoa sponge removal straws synchronization Table technique temperature testicular testis weight testosterone Thimonier uterine horn uterus volume