(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.
Prolificacy
Definition:
(n.) Prolificness.
Example Sentences:
(1) Using this approach, it is then possible to develop a gene pool for prolificacy.
(2) In the domestic pig seasonal influences on prolificacy still exist: for example, AI boars not only show decreased steroid synthesis, sperm counts and libido in summer compared with the optima which occur in winter but also a biphasic pattern with a transient increase in spring.
(3) The multifactorially determined criterion of prolificacy was not selectively correlated with overall differences in embryonic preimplantation growth and rate of aneuploidy.
(4) Selection within purebred lines to increase further prolificacy seems possible, in spite of some contrary results from initial experiments.
(5) The extensive data produced in this experiment allowed the relationships between ovulation rate and fertility and between fertility and prolificacy (fecundity) to be examined.
(6) Heritability and repeatability estimates were, respectively, as follows: fertility, 3%, 3%; prolificacy, 34%, 19%; lamb survival, 15%, 8%; lamb weaning weight, 7%, 36%; and ewe productivity, 27%, 10%.
(7) Ewes heterozygous (I+) for the Inverdale prolificacy gene (FecXI) located on the X chromosome have ovulation rates about 1.0 units higher than noncarriers.
(8) The differential expression of IGF mRNAs with stage of gestation and the correlation of relative ratios of IGF mRNAs with prolificacy during the critical period of maternal recognition of pregnancy suggest an important role(s) for IGFs in conceptus and fetal development.
(9) We concluded that high fertility and low prolificacy (i.e.
(10) The traits included weights of lambs at birth, weaning, 8 mo, 10 mo, and yearling ages and ewe characters of weight at lambing (EWT), total lamb weight born (LWB), total lamb weight weaned (LWW), and prolificacy rate (PR).
(11) The computer can also be an aid in eliminating chromosomal translocations responsible for a reduction in prolificacy ranging from 5 to 50%.
(12) This paper attempts to summarize and discuss the new evidence on the effectiveness of selection for prolificacy.
(13) The ovulatory response of ewes from breeds that differ widely in prolificacy (Ile-de-France, ++ Booroola Merino, Romanov, F+ Booroola Merino and F+ Booroola Romanov with adult ovulation rates of about 1.5, 1.2, 3, 3 and 3.5 respectively) to 750 IU of hCG given at different physiological stages (before puberty, during anestrus or during the luteal phase) was compared.
(14) The prolificacy of two rabbit strains (Californian and New Zealand) has been studied in parallel with ovulation rate and embryonic development.
(15) The ovaries of new born lambs (15 Ile-de-France and 19 Romanov, 34 ovaries) and of 4-week-old lambs (6 Ile-de-France and 12 Romanov, 18 ovaries) were examined histologically to compare ovarian follicular development in infant lambs of breeds differing in their prolificacy.
(16) Prolific breeds of sheep (Romanov, Finn and Booroola Romanov crosses heterozygous for the Booroola gene (F+) were compared with breeds of lower prolificacy (Ile-de-France, Finn X Scottish Blackface, Merino X Blackface and Booroola X Romanov not carrying a copy of Booroola gene (++] by in-vivo monitoring of follicular kinetics by ink labelling during the late luteal phase and follicular phase of the oestrous cycle followed by histological examination of the ovaries or follicle dissection.
(17) Prolificacy, defined as litter size at birth, is currently considered to be the most important component of sow productivity.
(18) A better understanding of the control of gonadotropin secretion in the cow would assist in the development of treatments to control prolificacy.
(19) The overall twinning rate and prolificacy were 30.7 and 130.6% respectively.
(20) Prolificacy has been defined as the number of viable piglets produced per year or per breeding lifetime.