کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
8503765 | 1554283 | 2017 | 8 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
The effects of injectable trace minerals on growth performance and mineral status of Angus beef steers raised in a natural feedlot program
ترجمه فارسی عنوان
اثرات مینرال های کششی تزریقی بر عملکرد و وضعیت معدنی گوساله های گوشت گاو انجس که در یک برنامه خوراکی طبیعی تولید می شوند
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کلمات کلیدی
طبیعی است، گاو گوشت گاو، ردیابی مواد معدنی، مواد معدنی،
موضوعات مرتبط
علوم زیستی و بیوفناوری
علوم کشاورزی و بیولوژیک
علوم دامی و جانورشناسی
چکیده انگلیسی
To evaluate the effects of an injectable trace mineral (TM) on TM status and growth of feedlot steers raised in a Certified Angus Beef Natural system, 168 certified natural Angus steers (359 ± 36.6 kg), blocked by initial BW into pens of 6 head, received a sterilized saline (SAL, n = 84) or Multimin90 (ITM, n = 84) injection (1.47 mL/100 kg of BW). Steers were grown on a corn silage-based diet for 56 d and transitioned, and on d 84 they began a dry-rolled corn-based finishing diet. On d 84 steers were assigned equally within treatment, SAL or ITM, to receive a second injection, making 4 total treatments: (1) d 0 SAL, d 84 SAL (SAL/SAL, n = 42); (2) d 0 SAL, d 84 ITM (SAL/ITM, n = 40); (3) d 0 ITM, d 84 SAL (ITM/SAL, n = 40); and (4) d 0 ITM, d 84 ITM (ITM/ITM, n = 42). Liver Cu and Se concentrations were greater (P ⤠0.01), and liver Zn concentrations tended (P = 0.07) to be greater in ITM versus SAL steers on d 14. Liver Zn and Mn were not different on d 98 (P ⥠0.64). Liver Cu (P = 0.02) and Se (P < 0.001) concentrations were greater in SAL/ITM and ITM/ITM on d 98. Injectable TM had no effect on growing or finishing BW or G:F (P ⥠0.14). Steers had adequate TM status throughout the trial, likely explaining the lack of performance differences due to TM treatment.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: The Professional Animal Scientist - Volume 33, Issue 2, April 2017, Pages 186-193
Journal: The Professional Animal Scientist - Volume 33, Issue 2, April 2017, Pages 186-193
نویسندگان
E.K. Niedermayer, O.N. Genther-Schroeder, D.D. PAS, S.L. Hansen,