@article{oai:miyazaki-u.repo.nii.ac.jp:00003258,
 author = {Katamoto, Hiromu and 片本, 宏 and 山田, 陽子 and 阿野, 仁志 and Ano, Hitoshi and 西崎, 悟 and 橋本, 宰昌 and 八巻, 尚 and Katamoto, Hiromu and 片本, 宏 and Yamada, Yooko and 阿野, 仁志 and Ano, Hitoshi and Nishizaki, Satoru and Hashimoto, Tadamasa and Yamaki, Takashi},
 journal = {宮崎大学農学部研究報告, Bulletin of the Faculty of Agriculture University of Miyazaki},
 month = {Feb},
 note = {The effects of peripartum supplementation with β-carotene on serum vitamin concentrations and passive immunity were assessed in Japanese Black cattle. Nineteen pregnant cows were assigned to supplemented (n=10) or control (n=9) group. Supplemented cows received 300 mg of β-carotene once daily from 4 weeks prepartum through 4 weeks postpartum. All cows were immunized twice with enterotoxigenic E. coli vaccine at 8 and 4 weeks before calving. Serum β-carotene concentrations in supplemented cows increased up to calving (P<0.001) and higher than those in control cows on week 0 (P<0.05) and 1 (P<0.1). Treatment did not affect concentrations of serum retinol and α-tocopherol in cows. Serum β-carotene concentrations in calves from supplemented dams tended to be higher than those in calves from control dams on week 4, but no significant difference was observed between 2 groups. β-Carotene feeding did not influence serum antibody titer to K99 in dams and their calves as well as growth performance of calves. These results suggest that 300 mg of β-carotene supplementation did not affect serum vitamin concentrations except β-carotene in dams and their calves and showed no effects on passive immunity., 分娩前後におけるβ-カロテン補給が, 黒毛和種牛の血清ビタミン濃度および受動免疫に及ぼす影響について調べた.  19頭の妊娠雌牛を補給群(n=10)または対照群(n=9)に分けた.  補給群は分娩4週間前より分娩4週間後まで, 1日1回300mgのβ-カロテンが与えられた.  全ての雌牛に分娩8および4週間前の2回, 毒素原性大腸菌ワクチンが接種された.  補給群の血清β-カロテン濃度は分娩時にかけて上昇し(P<0.001), 分娩時(P<0.05)および分娩1週間後(P<0.1)において対照群に比べ高かった.  β-カロテン補給は雌牛の血清レチノールおよびα-トコフェロール濃度に影響を与えなかった.  補給群の母牛から生まれた子牛の血清β-カロテン濃度は, 対照群の母牛から生まれた子牛に比べ, 生後4週間において高い傾向にあったが有意差は認められなかった.  β-カロテン補給は, 母牛およびその子牛のK99に対する血清抗体価および子牛の発育に影響しなかった.  以上の結果から, 300mgのβ-カロテン補給は, 母牛および子牛においてβ-カロテン以外の血清ビタミン濃度に影響を与えず, また受動免疫にも影響しないことが示唆された.},
 pages = {87--92},
 title = {Effects of peripartum β-carotene supplementation on serum vitamin concentrations and passive immunity in Japanese Black cattle},
 volume = {57},
 year = {2011},
 yomi = {カタモト, ヒロム and ヤマダ, ヨウコ and アノ, ヒトシ and ニシザキ, サトル and ハシモト, タダマサ and ヤマキ, タカシ and カタモト, ヒロム and アノ, ヒトシ}
}