Clinical Trends and Basic Research in Animal Reproduction: Proceedings of the 12th International Congress on Animal Reproduction, the Hague, Netherl Book

	Preface
Plenary Sess. I	Clinical trends in diagnosis and therapy of reproductive disorders
	Ultrasonography as a diagnostic tool in female animal reproduction	1
	Application of gonadotrophin releasing hormone as therapeutic agent in animal reproduction	11
Symposium 1	Clinical trends in equine reproduction and A.I
	Photoperiodism in the equine species - what is a long night?	21
	The diagnosis and handling of early gestational abnormalities in the mare	31
	Routine A1 application in the Hannoverian Sport Horse Breeding Association	39
Symposium 2	Pig reproduction
	Epidemiological evaluation of fertility management in swine herds	45
	Endometritis and vaginal discharge in the sow	51
	Perinatal mortality in pigs	59
Symposium 3	Sperm
	Morphological, functional and biochemical changes underlying the preparation and selection of fertilising spermatozoa 'in vivo'	69
	Molecular mechanisms of fertilization and activation of development	79
	Laboratory assessment of semen characteristics	87
Symposium 4	Control and manipulation of corpus luteum function
	Luteotrophic control of the corpus luteum	95
	Functional aspects of differentiation and degeneration of the steroidogenic cells of the corpus luteum in domestic ruminants	103
	Mechanisms associated with corpus luteum lifespan in animals having normal or subnormal luteal function	111
Plenary Sess. II	Embryo production and manipulation
	The production of ruminant embryos in vitro	125
	Clinical aspects of embryo transfer in some domestic farm animals	139
	Impact of biotechnology on animal breeding	149
	Embryo production and manipulation: ethical aspects	163
Symposium 5	Immunological techniques in reproduction
	Influence of the immune system on reproductive function	171
	Monitoring reproduction using immunological techniques	179
	Immunomodulation of reproductive systems	187
Symposium 6	Environmental factors on reproductive activity in domestic species
	Domestication and reproduction	195
	Photoperiod-pineal-hypothalamic relay in sheep	203
	Influence of non-photoperiodic environmental factors on reproduction in domestic animals	219
Symposium 7	Preservation of gametes
	Preservation of semen	229
	Cryopreservation of oocytes and embryos: methods and applications	237
	Genetic resource banks for conserving wildlife species: justification, examples and becoming organized on a global basis	247
Symposium 8	Relationship between uterine environment and embryonic development: practical consequences
	Synchrony embryo-uterus	259
	Early embryonic signals: embryo-maternal interactions before implantation	269
	Manipulation of early embryonic development	277
Plenary Sess. III	From early pregnancy to the neonatal period
	Maternal recognition of pregnancy	287
	Embryonic development and fetal growth	299
	Perinatal adaptation in animals	309
Plenary Sess. IV	Hormonal regulation
	Hormonal regulation of reproduction - general concepts	319
	The neuroendocrine signal for ovulation	329
	Intraovarian regulation of follicular development	343
Symposium 9	Cattle fertility problems
	Oestrus detection in cattle: recent developments	355
	Utero-ovarian relationships during the bovine postpartum period	363
	Postpartum anoestrus in dairy and beef cows	371
Symposium 10	Canine and feline reproduction
	Fertility problems in the bitch	379
	Feline reproduction and artificial breeding technologies	389
	Terminating pregnancy in dogs and cats	399
Symposium 11	Oocytes and embryos in vitro
	Oocyte maturation and fertilization	407
	Embryo development in vitro to the blastocyst stage in cattle, pigs and sheep	415
	Reconstruction of ungulate embryos by nuclear transplantation	423
Symposium 12	Parturition
	Physiology of parturition	433
	Parturition: spontaneous or induced preterm labour and its consequences for the neonate	441
	Retained placenta: an immunological approach	451
	Author Index	463