Feeding Tall Fescue Seed during Mid and Late Gestation Influences Subsequent Postnatal Growth, Puberty, and Carcass Quality of Offspring.
Feeding Tall Fescue Seed during Mid and Late Gestation Influences Subsequent Postnatal Growth, Puberty, and Carcass Quality of Offspring.
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DOI：
10.3390/ani10101859
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发表时间：
2020-10-12
期刊：
影响因子：
--
通讯作者：
Duckett SK
中科院分区：
文献类型：
--
作者：
Greene MA;Britt JL;Bertrand JK;Klotz JL;Bridges W Jr;Andrae JG;Duckett SK
关于在胎儿发育期间暴露于麦角生物碱（一类真菌毒素）对随后的断奶后生长、青春期和后代的胴体质量的影响知之甚少。本研究评估了在妊娠不同阶段接触受内生菌感染或不含内生菌的高羊茅种子的羔羊的断奶后生长、青春期发育和屠体质量。在妊娠晚期暴露于麦角生物碱的母羊羔羊的青春期延迟。麦角生物碱暴露对饲喂高浓缩物的公绵羊羔羊的生长和胴体性状影响较小，但观察到脂肪沉积和嫩度的变化。这些结果表明，暴露于麦角生物碱在怀孕期间确实改变随后断奶后的青春期的实现和身体组成的后代。断奶羔羊（n = 82），出生母羊喂养内生菌免费（E-）或内生菌感染（E+; 1.77 mg hd−1 d−1麦角缬氨酸+麦角缬氨酸）高羊茅种子从d 35至85妊娠（MID）和/或d 86妊娠分娩（LATE），用于检查如何麦角生物碱暴露在胎儿发育期间改变随后的青春期的实现或胴体质量。羔羊在75日龄断奶，并按性别分开，以评估母羊羔羊的青春期（n = 39），并评估在wethers（n = 43）的生长，胴体和肉品质。数据进行了分析，与母亲的牛毛草治疗，妊娠阶段，和双向互动的模型。在青春期的年龄往往（P = 0.06）是更长的母羊出生的母鼠喂养E+牛毛草在妊娠后期与那些喂养E−。断奶后平均日增重往往较高（P = 0.07）的母羊出生的E+牛毛草种子在MID妊娠期相比，E−。在胚胎生长期间暴露于麦角生物碱改变（P < 0.10）的最长肌肌肉的重量和颜色，脂质沉积，脂肪酸组成，和剪切力值的半膜肌在公羔羊。这些结果表明，暴露于麦角生物碱在子宫内确实改变随后断奶后的青春期的实现和身体组成的后代。
Little is known about the exposure to ergot alkaloids, a class of mycotoxins, during fetal development on subsequent post-weaning growth, puberty, and carcass quality of the offspring. This study evaluated post-weaning growth, puberty attainment, and carcass quality in lambs that were exposed to endophyte-infected or endophyte-free tall fescue seed during different stages of gestation. Puberty was delayed in ewe lambs that were exposed to ergot alkaloids during late gestation. Ergot alkaloid exposure had minor effects on growth and carcass traits in wether lambs fed high concentrates but alterations in fat deposition and tenderness were observed. These results indicate that exposure to ergot alkaloids during gestation does alter subsequent post-weaning puberty attainment and body composition of the offspring. Weaned lambs (n = 82), born to ewes fed endophyte-free (E−) or endophyte-infected (E+; 1.77 mg hd−1 d−1 ergovaline + ergovalinine) tall fescue seed from d 35 to 85 of gestation (MID) and/or d 86 of gestation to parturition (LATE), were used to examine how ergot alkaloid exposure during fetal development altered subsequent puberty attainment or carcass quality. Lambs were weaned at 75 d of age and separated by sex to assess puberty in ewe lambs (n = 39) and to evaluate growth, carcass and meat quality in wethers (n = 43). Data were analyzed with maternal fescue treatment, stage of gestation, and two-way interaction in the model. Age at puberty tended (P = 0.06) to be longer for ewe lambs born to dams fed E+ fescue during LATE gestation versus those fed E−. Post-weaning average daily gain tended to be higher (P = 0.07) for wether lambs born to dams fed E+ fescue seed during MID gestation compared to E−. Exposure to ergot alkaloids during fetal growth altered (P < 0.10) longissimus muscle weight and color, lipid deposition, fatty acid composition, and shear force values of semimembranosus muscle in wether lambs. These results indicate that exposure to ergot alkaloids in utero does alter subsequent post-weaning puberty attainment and body composition in offspring.
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DOI：
10.1016/j.cvfa.2019.02.008
发表时间：
2019-07-01
影响因子：
4.1
作者：
Greenwood, Paul L.;Bell, Alan W.
通讯作者：
Bell, Alan W.
影响因子：
3.3
作者：
ALDRICH, CG;RHODES, MT;PATERSON, JA
通讯作者：
PATERSON, JA
影响因子：
3.6
作者：
FITZGERALD, J;BUTLER, WR
通讯作者：
BUTLER, WR
DOI：
10.2134/jpa1990.0103
发表时间：
1990-01-01
期刊：
JOURNAL OF PRODUCTION AGRICULTURE
影响因子：
--
作者：
LUSBY, KS;MCMURPHY, WE;MUNTZ, SH
通讯作者：
MUNTZ, SH
影响因子：
3.3
作者：
Mattos, F. C. S. Z.;Canavessi, A. M. O.;Sartori, R.
通讯作者：
Sartori, R.