Line 36: |
Line 36: |
| | OT | | | OT |
| | E2 | | | E2 |
− | | Polyoestrous | + | | P4 |
− | | Polyoestrous | + | | T |
| + | | |
| + | | |
| + | | PGF2α |
| + | | PGE2 |
| + | | hCG |
| + | | eCG |
| + | | PL |
| |- | | |- |
− | | '''Length of Oestous Cycle''' | + | | '''Biochemical Classification''' |
− | | Every 4 days | + | | Neuropeptide (decapeptide) |
− | | 30-35 days | + | | Glycoprotein |
− | | 14 days | + | | Glycoprotein |
− | | 4-6 days | + | | Protein |
− | | 15-16 days | + | | Neuropeptide (Octapeptide) |
− | | Every 4 days | + | | Steroid |
− | | 4-5 days | + | | Steroid |
− | | 4-5 days | + | | Steroid |
| + | | Glycoprotein |
| + | | Glycoprotein |
| + | | Prostaglandin (C20 fatty acid) |
| + | | Prostaglandin (C20 fatty acid) |
| + | | Glycoprotein |
| + | | Glycoprotein |
| + | | Protein |
| |- | | |- |
− | | '''Type of Ovulation''' | + | | '''Source''' |
− | | Induced:Occurs Within 10 hours of Mating | + | | Hypothalamic Surge and Tonic Centres |
− | | Spontaneous | + | | Anterior Pituitary (Gonadotroph Cells) |
− | | Spontaneous | + | | Anterior Pituitary (Gonadotroph Cells) |
− | | Spontaneous | + | | Anterior Pituitary (Lactotroph Cells) |
− | | Spontaneous | + | | Synthesized in the Hypothalamus, Stored in the Posterior Pituitary, Synthesized by the Corpus Luteum |
− | | Spontaneous | + | | Granulosa Cells of Follicle, Placenta and Sertoli Cells of Testes |
− | | Spontaneous | + | | Corpus Luteum and Placenta |
− | | Spontaneous | + | | Interstitial Leydig Cells of Testes, Theca Interna Cells of the Follicle |
| + | | Granulosa Cells (female), Sertoli Cells (male) |
| + | | Granulosa Cells (female), Sertoli Cells (male) |
| + | | Uterine Endometrium, Vesicular Glands |
| + | | Ovary, Uterus, Embryonic Membranes |
| + | | Trophoblast Cells of the Blastocyst (Chorion) |
| + | | Chorionic Girdle Cells |
| + | | Placenta |
| |- | | |- |
− | | '''Gestation Period''' | + | | '''Male Target Tissue''' |
− | | 28-32 days | + | | Anterior Pituitary (Gonadotroph Cells) |
− | | 111 days | + | | Testes (Leydig Cells) |
− | | 28-32 days | + | | Testes (Sertoli Cells) |
− | | 24-26 days | + | | Testes, Brain |
− | | 63 days | + | | Smooth Muscle of Epididymal Tail, Ductus Deferens, Ampulla |
− | | 15-18 days | + | | Brain, Inhibits Long Bone Growth |
− | | 19-21 days | + | | Accessory Sex Glands, Tunica Dartos (Scrotum), Semniferous Epithelium, Skeletal Muscle |
− | | 20-22 days | + | | Anterior Pituitary (Gonadotroph Cells) |
| + | | Anterior Pituitary (Gonadotroph Cells) |
| + | | Epididymis |
| + | | |
| + | | |
| + | | |
| + | | |
| |- | | |- |
− | | '''Average Litter Size''' | + | | '''Female Target Tissue''' |
− | | 2-7 | + | | Anterior Pituitary (Gonadotroph Cells) |
− | | 2-3 | + | | Ovary (Theca Interna and Luteal Cells) |
− | | 2-6 | + | | Ovary (Granulosa Cells) |
− | | 3-6 | + | | Mammary Cells, Corpus Luteum in Rodents |
− | | 2-6 | + | | Uterine Myometrium and Endometrium, Myoepithelial Cells of Mammary Glands |
− | | 3-7 | + | | Hypothalamus, Entire Tract, Mammary Gland |
− | | 6-12 | + | | Uterine Endometrium, Mammary Gland, Myometrium, Hypothalamus |
− | | 6-12 | + | | Brain, Skeletal Muscle, Granulosa Cells |
| + | | Anterior Pituitary (Gonadotroph Cells) |
| + | | Anterior Pituitary (Gonadotroph Cells) |
| + | | Corpus Luteum, Uterine Myometrium, Ovulatory Follicles |
| + | | Corpus Luteum, Oviduct |
| + | | Ovary |
| + | | Ovary |
| + | | Mammary Gland |
| |- | | |- |
− | | '''Type of Young at Birth''' | + | | '''Male Primary Action''' |
− | | Altricial | + | | Release of FSH and LH from the Anterior Pituitary Gland |
− | | Precocial | + | | Stimulates Testosterone Production |
− | | Altricial | + | | Sertoli Cell Function |
− | | Altricial | + | | Induce Maternal Behaviour |
− | | Precocial | + | | PGF2α Synthesis, Pre-Ejaculatory Movement of Spermatozoa |
− | | Altricial | + | | Sexual Behaviour |
− | | Altricial | + | | |
− | | Altricial | + | | Anabolic Growth, Promotes Spermatogenesis, Promotes Secretion of Accessory Sex Glands |
| + | | Inhibits FSH Secretion |
| + | | Stimulates FSH Secretion |
| + | | Affects Metabolic Activity of Spermatozoa, Epididymal Contractions |
| + | | |
| + | | Increased Growth of Foetal Testes |
| + | | |
| + | | |
| |- | | |- |
− | | '''Weaning Age''' | + | | '''Female Primary Action''' |
− | | 4-6 weeks | + | | Release of FSH and LH from Anterior Pituitary Gland |
− | | 6-8 weeks | + | | Stimulates Ovulation, Formation of Corpora Lutea and Progesterone Secretion |
− | | 6-7 weeks | + | | Follicular Development, Oestradiol Synthesis |
− | | 3-4 weeks | + | | Lactation, Maternal Behaviour, Corpora Lutea Function (some species) |
− | | 3-4 weeks | + | | Uterine Motility, Uterine PGF2α Synthesis, Milk Ejection |
− | | 3-4 weeks | + | | Sexual Behaviour, GnRH, Elevated Secretory Activity of Tract, Enhanced Uterine Motility |
− | | 18 days
| + | | Endometrial Secretion, Inhibits GnRH Release,Inhibits Reproductive Behaviour, Maintenance of Pregnancy |
− | | 3 weeks
| + | | Substrate For E2 Synthesis, Abnormal Masculinization |
− | |-
| + | | Inhibits FSH Secretion |
− | | '''Age of Sexual Maturity''' | + | | Stimulates FSH Secretion |
− | | 5-8 months | + | | Luteolysis, Uterine Tone and Contraction, Ovulation |
− | | 8 months | + | |Ovulation, Corpus Luteum Secretion of Progesterone |
− | | 12 months | + | | Facilitates Ovarian Production of Progesterone |
− | | 10-12 weeks | + | | Formation of Accessory Corpora Lutea |
− | | 6-10 weeks | + | | Mammary Stimulation |
− | | 6-10 weeks | |
− | | 3-4 weeks | |
− | | 5-6 weeks | |
| | | | | |
| |} | | |} |