期刊
JOURNAL OF ANIMAL PHYSIOLOGY AND ANIMAL NUTRITION
卷 93, 期 4, 页码 456-466出版社
WILEY
DOI: 10.1111/j.1439-0396.2008.00827.x
关键词
Angora kids; mohair; hair follicle; thyroid hormones; insulin; IGF-1
资金
- University of Camerino
P>Twenty-two Angora kids were used to study the effect of a dietary supplementation with field bean (Vicia faba L. var. minor) on hair follicle activity, mohair characteristics and plasma total thyroxine (T4), triiodothyronine (T3), insulin (INS) and insulin-like growth factor-1 (IGF-1) concentrations. At birth, their mothers were divided in two groups (S: supplemented, C: control), the S group being supplemented with 300 g/head/day of whole field bean. At weaning, diet of kids from S group was supplemented with 80 g/head/day of whole field bean. At weaning, secondary hair follicle activity (S: 0.91 +/- 0.01, C: 0.84 +/- 0.02, p < 0.01) and staple length (S: 5.82 +/- 0.13 cm, C: 5.16 +/- 0.14 cm, p < 0.001) were greater in the S group. At 155 days of age, secondary fibre diameter (S: 16.54 +/- 0.35 mu m, C: 18.09 +/- 0.31 mu m, p < 0.01) was higher in the C kids. Concentrations of total plasma T4 and T3 were higher (p < 0.001) in S (120 +/- 12 and 4.87 +/- 0.92 ng/ml respectively) than in C kids (92 +/- 8 and 2.97 +/- 0.77 ng/ml respectively). At weaning, T4 values were negatively correlated (p < 0.05) with the secondary fibre diameter and the T3/T4 ratio was positively correlated (p < 0.05) with the secondary to primary hair follicle ratio. At 155 days of age, both T3 and T3/T4 values were positively correlated (p < 0.01) with staple length. Plasma INS (0.11 +/- 0.03 ng/ml) and total IGF-1 concentrations (232 +/- 13 ng/ml) were not affected by diet. Improvements of diet quality in kids positively affected fibre diameter and length and follicle activity rate. We suggest that increased circulating thyroid hormones concentrations, but not those of INS and IGF-1, may contribute to the beneficial actions of nutritional supplementation on anatomical growth and mohair production of kids.
作者
我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。
推荐
暂无数据