کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
5542295 1402516 2017 5 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Short communication: Parameters of abomasal emptying and glucose-insulin dynamics in Holstein-Friesian calves at 2 ages and 2 levels of milk replacer intake
ترجمه فارسی عنوان
ارتباطات کوتاه: پارامترهای تخلیه آبوماسال و پویایی انسولین گلوکز در گوساله های هولشتاین-فریزیان در 2 سنین و 2 سطح مصرف شیر جایگزین
کلمات کلیدی
جایگزین شیر، تخلیه آبوماسال، حساسیت به انسولین، پاسخ پانکراس، مدل مکانیکی،
موضوعات مرتبط
علوم زیستی و بیوفناوری علوم کشاورزی و بیولوژیک علوم دامی و جانورشناسی
چکیده انگلیسی
Elevated planes of nutrition in the preweaning period of dairy calf management can increase average daily gain, shorten age at puberty, and increase milk yield. In a previous study, 12 Holstein calves were fed 2 meals/d of 4 or 2 L milk replacer up to 7 wk of age. The objective of the current study was to estimate parameters of abomasal emptying and glucose-insulin dynamics in these calves by fitting a mechanistic model to postprandial appearances of plasma glucose, insulin, and the abomasal emptying marker acetaminophen measured at 4 and 7 wk of age. Higher intake of milk replacer resulted in longer bouts of abomasal emptying at a slower rate. Parameters of glucose and insulin dynamics were not affected by milk replacer intake. However, older calves had decreased insulin-stimulated glucose utilization indicating impaired insulin sensitivity, as well as increased pancreatic responsiveness. Neither of these effects were apparent from i.v. glucose tolerance tests on the calves and may have been related to postprandial gut hormone release. Effects of age on parameters of glucose-insulin dynamics were larger than effects of milk replacer intake. Conversely, effects of milk replacer intake on abomasal emptying were larger than effects of age.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Journal of Dairy Science - Volume 100, Issue 6, June 2017, Pages 5068-5072
نویسندگان
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