What's the difference between fecundity and fertility?

Fecundity


Definition:

  • (n.) The quality or power of producing fruit; fruitfulness; especially (Biol.), the quality in female organisms of reproducing rapidly and in great numbers.
  • (n.) The power of germinating; as in seeds.
  • (n.) The power of bringing forth in abundance; fertility; richness of invention; as, the fecundity of God's creative power.

Example Sentences:

  • (1) Multiple spawnings of individual females were also observed during the spawning period affecting the relative fecundity of the eggs.
  • (2) Haematological and blood biochemical changes in the sheep, as well as fecundity of gastrointestinal nematodes, suggested the hosts were immunosuppressed.
  • (3) Effect of microsporidiosis on the fecundity of hosts A. c. caspius was studied.
  • (4) Fecundability was only 12% lower for women in the 30-39 year age interval than for women up to 29 years of age.
  • (5) Data in relation to evolution cycle, period between emergency of adults and first oviposition, fecundity, fertility, amount of blood ingested and fast resistance, are presented.
  • (6) We conclude that cycle fecundity rates and cumulative pregnancy rates are significantly greater using a combination of hMG and IUI compared with either modality alone in the treatment of male factor, cervical factor, endometriosis, or unexplained infertility.
  • (7) A model of functional epistasis is proposed in which it is assumed that coupling and repulsion genotypes differ in metabolic efficiency and thus in development time and net fecundity.
  • (8) We show by genetic crosses that each gene makes an equivalent contribution to the fecundity and fertility of the female and they do not individually provide unique functions to the embryo.
  • (9) were significantly higher in Booroola ewes containing a major fecundity gene (FF and F+ ewes) compared to those values in Booroolas with no copy of the gene (++ animals; P less than 0.025).
  • (10) Fecundity among genotypes was not different, although there was an effect on the total number of offspring suggesting differences in egg-to-adult survivorship.
  • (11) The higher fecundability of more recent cohorts is the most consistent observation.
  • (12) Electrophoretic partition of the semen plasma of dogs with fecundity disturbances also showed the presence of three fractions, whose migration path and protein concentration are identical with those found in the semen plasma of fertile dogs.
  • (13) mortality was high), while the nymphal instars showed an adverse effect on ecdysis and adults which emerged from the treated last nymphal instar were characterized by high mortality, abnormal behaviour and reduced fecundity and viability.
  • (14) Thus, parity had little effect on fecundity in aging females, whereas the cessation of regular ovulatory cycles during aging greatly decreased both the incidence of fertility and the litter size.
  • (15) Neither sex nor the age of the host was found to influence the fecundic life span or the survival of female adult worm.
  • (16) The viabilities and fecundities of these same lines were determined by a segregation test using the SM5 balancer chromosome.
  • (17) The numbers of vitellogenic oocytes in the ovary during the entire study also suggested that atresia of vitellogenic oocytes does not play a prominent role in determining fecundity.
  • (18) Fecundability of 104 healthy women attempting to become pregnant was halved by consumption of the equivalent of 1 cup of brewed coffee or more daily.
  • (19) A possible relation between prenatal exposure to cigarette smoking and adult fecundability in women was explored, with the use of data from a prospective study of 221 North Carolina couples.
  • (20) The processes, connected with the population's reproduction fecundity and the birth number play a great part in the health formation of different populations.

Fertility


Definition:

  • (n.) The state or quality of being fertile or fruitful; fruitfulness; productiveness; fecundity; richness; abundance of resources; fertile invention; quickness; readiness; as, the fertility of soil, or of imagination.

Example Sentences:

  • (1) Here we report that sperm from psr males fertilizes eggs, but that the paternal chromosomes are subsequently condensed into a chromatin mass before the first mitotic division of the egg and do not participate in further divisions.
  • (2) Homozygotes have sparse greasy fur and lower viability and fertility than normal littermates.
  • (3) Sperm specimens were obtained from 13 men participating in our in vitro fertilization program.
  • (4) Since 1987, it has become possible to obtain immature ova from the living animal and to let them mature, fertilize and develop into embryos capable of transplantation outside the body.
  • (5) Patient or fetal cord serum is commonly used as a protein supplement to culture media used in in-vitro fertilization (IVF).
  • (6) From the biochemical markers in follicular fluid, cyclic adenosine monophosphate has a distinct predictive value in regard to pregnancy in in vitro fertilization-embryo transfer cycles.
  • (7) In the triploids, the 40 female chromosomes present (mouse, n = 20) were derived from a single diploid pronucleus formed after the extrusion of a first polar body, and following the monospermic fertilization of primary oocytes.
  • (8) If Cory Bernardi wasn’t currently in a period of radio silence as he contemplates his immediate political future he’d be all over this too, mining the Trumpocalypse – or in our domestic context, mining the fertile political fault line where Coalition support intersects with One Nation support.
  • (9) The objective of this study was to examine the effects of different culture media used for maturation of bovine oocytes on in vitro embryo development following in vitro fertilization.
  • (10) Major limitations of the conventional sperm penetration assay are the inability to assess several aspects of sperm function (zona binding and penetration) and the absence of human ovulatory products known to influence fertilization.
  • (11) Couples applying to in vitro fertilization were admitted into this project when the sperm concentration was greater than 20 million per mL and motility greater than 30 per cent.
  • (12) This procedure can quickly provide acrosome-reacted bull sperm for use with various in vitro fertilization procedures and for assessment of male fertility.
  • (13) Plakoglobin is present in the fertilized egg, increases in abundance by neurula stage, then declines at the tailbud and tadpole stages.
  • (14) Fertilization of golden hamster eggs was blocked both in vitro and in vivo by antibodies produced in rabbits against specific hamster ovarian antigens (HOA).
  • (15) 97 measurements in 54 pregnancies between day 39 and 80 after successful fertilization has been performed.
  • (16) These findings suggest that testicular vein ligation for varicoceles does not improve fertility.
  • (17) After 37 days of treatment with (-)-gossypol, only 2 out of 5 males were fertile, and a further loss of fertility was apparent during the next cohabitation period.
  • (18) Higher enrollment rates were associated with lower fertility in every model in which prior fertility was controlled.
  • (19) A comparative evaluation of these data suggest that hormone independent cells are present in the cervical crypts of late menopause women and that a cyclic change of hormone dependent cells may occur in fertile women, analogous to the cyclic changes of endometrial mucosa.
  • (20) In study III the effect on fertility of nutrition, weight and body condition was studied.