(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.
Infecundity
Definition:
(n.) Want of fecundity or fruitfulness; barrenness; sterility; unproductiveness.
Example Sentences:
(1) The index of contraception and proportion married is higher in China than in developed countries, while the Chinese infecundability index is lower.
(2) China's infecundability index is similar to semideveloped countries.
(3) A regional mapping of infecundity values revealed a concentration of in a broad belt extending from the south and southwest to the northeast across the central part of Ethiopia.
(4) Comparative data from other countries confirm that the study area has very low levels of fertility and marriage, a very high prevalence of induced abortion, and a small effect of lactational infecundability.
(5) Residence in Shewa increased the risk of infecundity by 2.16 in comparison to residence in an eastern region.
(6) The effects of 2 other proximate determinants, lactational infecundability and spousal separation, were negligible (even though spousal separation was especially considered, on the belief that it is strongly affected by employment patterns).
(7) Characterization of a group of dominant second chromosome suppressor of position-effect variegation (PEV) (Su(var)) mutants has revealed a variety of interesting properties, including: maternal-effect suppression of PEV, homozygous lethality or semilethality and male-specific hemizygous lethality, female infecundity, acute sensitivity to the amount of heterochromatin in the cell and sensitivity to sodium butyrate.
(8) The decline in fertility may be due to several factors: deferred marriage; increase in divorces and husband-wife separations; high fetal wastage; voluntary fertility control through contraception, abstention, or induced abortion; and infecundability.
(9) The proportion infecund among ever-married women declined with age, from 11.5% among women over age 55, 7.4% among those 45-54, to 5% among women aged 30-44 years.
(10) Abortion (.832) and infecundability (.852) had minimal effects on fertility reduction.
(11) A 1980-81 survey of the rural population of Ethiopia found high levels of infecundity and subfertility, although there was considerable variation by region, ethnicity and age of women.
(12) On the basis of the incidence of infecundity, four regional groups were formed--western (Welega, Ilubabor, Kefa, and Sidamo), Shewa, Welo, and eastern (Harerge, Bale, and Arsi), representing very high, high, moderate, and low incidences, respectively.
(13) The 6 regions that comprise this belt had infecundity rates in excess of 8%.
(14) The 1978 World Fertility Survey (WFS) and the 1986 Demographic and Health Survey (DHS) data are used to examine the relative contributions of three proximate determinants (nuptiality or marriage, contraception and post-partum infecundability) to fertility change in Senegal.
(15) The changes in fertility levels from Phase 1 to Phase 4 generally indicate that the transition from natural to controlled fertility is characterized by declines in the proportions of women married and the duration of postpartum infecundability, and a substantial increase in the prevalence and effectiveness of contraceptive practices.
(16) To test the relative significance of these factors, logistic regression analyses were performed using the incidence of infecundity among women 40-59 years of age as the dependent variable.
(17) However, the index of contraceptive use exerts the least impact on fertility reduction while that of post-partum infecundability makes the strongest impact on fertility.
(18) Total average interval between births is 36 months; about 18 months are solely due to breastfeeding, the remaining months to combined effects of gestation, waiting time to conception, intrauterine mortality and post-partum infecundability.
(19) Direct evidence on age patterns of infecundity and sterility cannot be obtained from contemporary populations because such large fractions of couples use contraception or have been sterilized.
(20) The proportion of infecund women is approximately the same as in the 1970s.