Publications by authors named "Kyoko Kido"

We conducted two feeding experiments to evaluate the effects of supplementation with either cellooligosaccharide or kraft pulp on growth performance in grazing beef calves (Japanese Black) from 4 weeks pre-weaning to 12 to 16 weeks post-weaning. In Experiment 1 (20-week duration), nine calves (2.9-month-old females) were assigned to either a control group (CON) or an experimental group (CEL) fed cellooligosaccharide at a rate of 10 g/day mixed with concentrate.

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Purpose: To assess an embryo's ability to develop into a good-quality blastocyst during the early-cleavage stage using time-lapse imaging and the oxygen consumption rate.

Methods: In total, 942 zygotes had their oxygen consumption rates measured. In total, 282 zygotes were assessed by using time-lapse imaging.

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Article Synopsis
  • - The study assessed the effects of cyclophosphamide (CPA) on oocyte fertilization and embryo growth in mice, finding that higher CPA doses (≥400 mg/kg) significantly reduced the number of viable oocytes and fertility rates.
  • - Despite the decrease in the number of metaphase II oocytes and fertilization rates after high CPA doses, embryos that were fertilized grew normally, with development features resembling those of control group embryos.
  • - One month post-CPA treatment, both the number of retrievable oocytes and their capability to develop into blastocysts were restored to levels comparable to the control group, indicating a recovery of reproductive potential.
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Vitamin A (VA) restriction in beef cattle improves meat marbling; however, the underlying molecular mechanisms remain incompletely understood. We performed microarray analysis to clarify the effect of VA restriction on Longissimus thoracis gene expressions in Japanese Black steers. Six Japanese Black steers 13-14 months of age were divided into two groups: S group (n = 3), which received VA supplementation, and R group (n = 3), in which dietary VA intake was restricted.

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We conducted two feeding experiments to evaluate the effects of cellooligosaccharide (CE) supplementation on growth performance in grazing beef calves. Calf sex and age and duration of the experimental period differed between the experiments. Experiment 1 (10 weeks) used 5.

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