کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
2097215 | 1082203 | 2014 | 12 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Effects of maternal nutrient restriction followed by realimentation during midgestation on uterine blood flow in beef cows
ترجمه فارسی عنوان
اثرات محدودیت های مواد مغذی مادران و تحریک آنها در طی زایمان در جریان خون رحمی در گاو های گوشت گاو
دانلود مقاله + سفارش ترجمه
دانلود مقاله ISI انگلیسی
رایگان برای ایرانیان
کلمات کلیدی
گاو گوشت گاو، محدودیت تغذیه ای بارداری، جریان خون رحم،
موضوعات مرتبط
علوم زیستی و بیوفناوری
علوم کشاورزی و بیولوژیک
علوم دامی و جانورشناسی
چکیده انگلیسی
The objective was to examine the effect of maternal nutrient restriction followed by realimentation during midgestation on uterine blood flow (BF). On Day 30 of pregnancy, lactating, multiparous Simmental beef cows were assigned randomly to treatments: control (CON; 100% National Research Council; n = 6) and nutrient restriction (RES; 60% of CON; n = 4) from Day 30 to 140 (period 1), and thereafter, realimented to CON until Day 198 of gestation (period 2). Uterine BF, pulsatility index (PI), and resistance index (RI) were obtained from both the ipsilateral and contralateral uterine arteries via Doppler ultrasonography. Generalized least square analysis was performed. Ipsilateral uterine BF in both groups increased quadratically (P < 0.01) during period 1 and linearly (P < 0.01) during period 2. There was a treatment (P = 0.05) effect during period 2; where RES cows had greater ipsilateral BF versus CON. Ipsilateral uterine PI and RI decreased linearly (P â¤Â 0.01) during period 1 across treatments. Contralateral uterine BF in CON cows tended (P < 0.09) to be greater versus RES in both periods. Contralateral PI in both groups increased linearly (P â¤Â 0.01) during period 1. Contralateral uterine RI was increased (P â¤Â 0.05) in RES cows versus CON in both periods. There was no interaction or treatment effect (P â¥Â 0.24) for total BF during either period. Nutrient restriction does not alter total uterine BF, but it may increase vascular resistance. However, up on realimentation, local conceptus-derived vasoactive factors appear to influence ipsilateral uterine BF.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Theriogenology - Volume 81, Issue 9, June 2014, Pages 1248-1256.e3
Journal: Theriogenology - Volume 81, Issue 9, June 2014, Pages 1248-1256.e3
نویسندگان
L.E. Camacho, C.O. Lemley, L.D. Prezotto, M.L. Bauer, H.C. Freetly, K.C. Swanson, K.A. Vonnahme,