ライフサイエンスコーパス: litter size

1 the range of resources per offspring in any litter size.

2 al resources devoted to reproduction at that litter size.

3 ase in sperm count and motility, and smaller litter size.

4 ptor (ER) locus is associated with increased litter size.

5 lly significant (P = 0.013) correlation with litter size.

6 xcept that it tended to vary positively with litter size.

7 important as genotype-independent effects of litter size.

8 ases embryo implantation failure and reduces litter size.

9 ease in embryo resorption and a reduction in litter size.

10 and body growth, or between brain growth and litter size.

11 k tetraiodothyronine (T4) content and halved litter size.

12 d Taf7l(-/Y) males were fertile with reduced litter size.

13 with in vivo development with an equivalent litter size.

14 al for successful term pregnancy with normal litter size.

15 females are subfertile with sharply reduced litter size.

16 A > 80 mg/kg body/day, we observed decreased litter size.

17 of other typical fitness components such as litter size.

18 ffspring should be inversely proportional to litter size.

19 d to reproduction should be the same for all litter sizes.

20 m of demographic stochasticity: variation in litter sizes.

21 allele are viable with slightly reduced mean litter sizes.

22 owth rates, were fertile and produced normal litter sizes.

23 female mice were subfertile and had reduced litter sizes.

24 mosquito fish (Gambusia hubbsi) at different litter sizes.

25 emainder of gestation and all offspring were litter size adjusted and fed standard chow.

26 both analyses: sex, year, management group, litter size and age of dam, with day of birth as covaria

27 (-17%, p < 0.05), whereas placental weight, litter size and crown rump length were unaltered.

28 henotype that resulted in a 33% reduction in litter size and frequent perinatal death.

29 ertain strains exhibit striking variation in litter size and in the ratio of females to males.

30 wed that AGD at birth varied negatively with litter size and parturition number but positively with w

31 determine whether calorie source influenced litter size and sex ratio of pups.

32 At the population level, litter size and survival decreased with increasing wolf

33 At the individual level, litter size and survival improved with body mass and dec

34 However, mannose further reduced litter size and survival to weaning by 40 and 66%, respe

35 cal factors on the reproductive performance (litter size and survival) of breeding females.

36 revealed an invariance relationship between litter size and the range of resources per offspring in

37 Endometrial glycogen content, litter size and weight of offspring at birth were signif

38 Although overall litter sizes and number of fetal loss remained unaltered

39 mice results in uterine hypoplasia, reduced litter size, and increased incidence of neonatal deaths

40 Rgs2(-/-) females had reduced litter sizes, and their eggs had increased sensitivity t

41 sence of differences in resorption rates and litter sizes argue against induced embryonic lethality.

42 id not lead to any fetal anomalies or affect litter size at gestation day 12, compared with controls.

43 We find that differences in litter size between these two strains are determined by

44 e patterning of foliation; and also affected litter size, body weight, and mortality of the offspring

45 In Jam-A-deficient mice, which have reduced litter size, both progressive and hyperactive motility a

46 ition of parameters for mean and variance of litter sizes, breeding group (subpopulation) sizes, and

47 Overall, these litter size-by-genotype interactions considerably modifi

48 nd that interaction effects of genotype with litter size can be as important as genotype-independent

49 ts should also show equal ranges within each litter size category (except for litters of one).

50 ably modified the degree to which increasing litter size caused reduced weight.

51 0% more eggs and had a sustained increase in litter size compared to controls.

52 Ppard(-/-) mice exhibit smaller litter size compared with Ppard(+/+) mice.

53 ed a substantially higher pregnancy rate and litter size compared with WT mice at advanced age.

54 We used litter size data on 32 terrestrial carnivore species to

55 rnal investment were associated with smaller litter size, delayed maternal reproduction that extended

56 Gestation length and litter size did not differ between VHF and LF groups and

57 s indicated that ER is the best predictor of litter size differences.

58 en loci, over and above the general negative litter size effect.

59 birth weight, weight gain during pregnancy, litter size, fetal weight, placental weight, fetal : pla

60 Body mass was the primary determinant of litter size, followed by pack size and population size.

61 The average litter size from GPR4(-/-) intercrosses was approximatel

62 The litter sizes from S1P(2)S1P(3) double-null crosses were

63 e that long-term selection for components of litter size has caused significant changes in physiologi

64 F1 litter size, HFD consumption, body weight, and body fat

65 was detected including a suggestive QTL for litter size in a location of changing allele frequency.

66 The litter size in crosses of top3 beta(-/-) mice decreases

67 arly reproductive senescence and decrease in litter size in F1 female progeny.

68 ygotes was sufficient to explain the reduced litter size in matings with Bub1 heterozygous females.

69 n the AHR gene that associate with increased litter size in multiple European commercial lines.

70 riencing the extremes of the normal range of litter sizes in our population (five to nine litter mate

71 ressive use of more anterior nipples only as litter size increased and by the reluctance of pups to v

72 ho begged at low rates received more food as litter size increased.

73 size ought to show a - 1 scaling with small litter size, independent of most details of the underlyi

74 Female performance was independent of litter size, indicating that it is probably not controll

75 Lpla2-/- mouse mating pairs yielded normal litter sizes, indicating that the gene deficiency did no

76 The reduced litter size is solely a maternal genotype effect and res

77 arly life stressor, we examined birthweight, litter size, maternal cannibalism, and epigenetic modifi

78 ared with in vivo development independent of litter size, maternal origin, or body weight.

79 correlate with the high ovulation quota and litter size observed in mice.

80 eeclampsia, fetal/neonatal deaths, and small litter sizes occurred in some Tg-G0 mice and more severe

81 ay 5 of pregnancy indicated that the reduced litter size of EP2-/- mice is due to a pre-implantation

82 e similar in magnitude to the main effect of litter size on weight.

83 our duration (P < 0.001), as well as reduced litter size (P < 0.01) vs. 3-month-old mice.

84 on reproductive performance was nonlinear as litter size peaked at eight wolves and then declined, an

85 Prenatal nPM did not alter litter size, pup weight, or postnatal growth.

86 mpairment that could be partially rescued by litter size reduction.

87 in the light of five explanatory hypotheses: litter size, sex allocation, resource limitation, timing

88 No difference in gestation length, litter size, sex ratio or postnatal growth was observed

89 CD-1 line, which has been selected for large litter size, showed little or no inhibition of spermatid

90 y normal; however, overall the males produce litter sizes some 50% smaller whereas female homozygotes

91 Upon reduction of the litter size, some mutants survive into adulthood and dis

92 No differences in litter size, survival, or body weight were observed in A

93 lastocysts to recipient females doubles mean litter size to about nine piglets per litter.

94 Here, we used a mouse model of divergent litter size to investigate the effects of early postnata

95 ent a modification of this rule that relates litter size to the total resources devoted to reproducti

96 Litter sizes, total litter weight, and individual pup we

97 Since data on intraspecific litter size variation are often sparse, it is unclear wh

98 on should be used to describe the pattern of litter size variation for multiparous carnivores.

99 nagement of less studied carnivores in which litter size variation is estimated using data from speci

100 Under hypoxic conditions, litter size was reduced and IGFBP-1 was up-regulated in

101 majority of species, because variation among litter-sizes was often small.

102 n embryonic implantation, pregnancy rate and litter size were observed in matings with p53-/- female

103 result in infertility as gestation times and litter sizes were comparable to those of wild-type mice.

104 (d/d) females delivered live pups, and their litter sizes were lower.

105 d in adult F1 females as reduced ovarian and litter size, whereas F1 males recovered normal GC number

106 A3 in mice resulted in significantly reduced litter size, which could be attributed to delayed implan

107 pholipase A(2) (Pla2g4a(-/-)) have a smaller litter size, which is due, in part, to defective implant

108 be positively related to body condition and litter size, while overall offspring THg was positively

109 his is concurrent with a 2-fold reduction of litter size with maternal ageing.

110 intrauterine growth restriction, and reduced litter size with postnatal neuromotor defects.