کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
10973816 1108019 2015 8 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Effect of enhanced whole-milk feeding in calves on subsequent first-lactation performance
ترجمه فارسی عنوان
اثر تغذیه کامل شیر در گوساله ها بر عملکرد بعد از شیردهی بعدی
کلمات کلیدی
گوساله، تغذیه افزایش یافته، شیر کامل، اولین شیردهی، رشد،
موضوعات مرتبط
علوم زیستی و بیوفناوری علوم کشاورزی و بیولوژیک علوم دامی و جانورشناسی
چکیده انگلیسی
The objective of this study was to determine the effect of enhanced whole-milk (WM) feeding systems in calves from birth to 8 wk of age on subsequent first-lactation performance. The experiment was conducted as a completely randomized design consisting of 2 treatment groups. At birth, 152 Holstein heifer calves were randomly assigned to 1 of 2 treatments: (i) 4 L of WM/d or (ii) 8 L of WM/d. The calves were bucket fed 2 or 4 L of WM twice daily at 0700 and 1600 h. Each calf was housed individually in temperature-controlled nurseries and had ad libitum access to water and textured calf starter daily. Calves consumed greater volumes of textured calf starter when fed 4 versus 8 L of WM/d. Water intakes mirrored starter intakes, leading to greater water consumption at weaning. Calves reared on 8 L of WM/d were heavier at d 56 than calves reared on 4 L of WM/d. The average daily gain of the calves offered 8 L of WM/d from d 0 to 56 was greater than that of calves offered 4 L of WM/d. Structural measurements were significantly greater for calves that consumed 8 L of WM/d. The differences observed in withers height and live BW due to WM feeding level were not apparent by 3 and 12 mo of age, respectively. Rumen pH was higher in calves that consumed 8 L of WM/d than in calves that consumed 4 L of WM/d. Whole-milk feeding level did not affect age at first calving or milk-production parameters. These results suggest that enhanced WM feeding improved growth performance until 3 mo of age. However, first-lactation results indicated no lactation-performance benefits of increased nutrition and growth performance during the milk-fed period in dairy calves.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Journal of Dairy Science - Volume 98, Issue 1, January 2015, Pages 349-356
نویسندگان
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