Productive and metabolic responses of Holstein dairy calves to different milk dry matter concentrations and two free water provision schedules
Publish Year: 1402
نوع سند: مقاله ژورنالی
زبان: English
View: 95
This Paper With 9 Page And PDF Format Ready To Download
- Certificate
- من نویسنده این مقاله هستم
استخراج به نرم افزارهای پژوهشی:
شناسه ملی سند علمی:
JR_KLST-11-2_005
تاریخ نمایه سازی: 25 آذر 1402
Abstract:
This study was aimed to assess the effects of reducing free water access time and feeding milk at various dry matter (DM) concentrations on water consumption, growth performance, DM intake (DMI), and blood metabolites of Holstein dairy calves. Sixty Holstein dairy calves [۴۲ ± ۳.۰ kg of body weight (BW)] were used in a ۳ × ۲ factorial randomized block design with the main factors including milk DM (low, medium, and high DM; LDM, MDM, and HDM, ۱۲۵, ۱۴۰, and ۱۵۵ g/kg, respectively) and water access time (short and long-time free water access, ST and LT respectively). Neither milk DM concentration nor water access time had any effect on the mean water intake (L/d). Increasing the concentration of liquid feed in both water provision schedules, improved the final BW, average daily gain (ADG), heart girth, and withers and hip heights. However, main blood metabolites were not affected by milk DM. The LT calves that consumed the highest milk DM (HDM) had the greatest ADG compared to other treatments (P<۰.۰۵). A trend was found for the interaction between milk DM and water access time as in the ST calves, the final BW was greater than LT at ۱۲۵ and ۱۴۰ g/kg milk concentrations (P=۰.۰۸) but at ۱۵۵ g/kg milk DM, the highest final BW was found in LT calves. It was concluded that under the environmental condition similar to this study, water provision duration for neonatal calves could be reduced to once a day (just ۲ h) however, we do not recommend increasing the DM content of milk by more than ۱۴۰ g/kg when water is provided freely, ۲ h once a day.
Keywords:
Authors
Amin Darzi Lemraski
Department of Animal Science, Faculty of Agriculture, Ferdowsi University of Mashhad, Mashhad, Iran
Seyed Hadi Ebrahimi
Department of Animal Science, Faculty of Agriculture, Ferdowsi University of Mashhad, Mashhad, Iran
Mohsen Danesh Mesgaran
Department of Animal Science, Faculty of Agriculture, Ferdowsi University of Mashhad, Mashhad, Iran
Abdol Mansor Tahmasbi
Department of Animal Science, Faculty of Agriculture, Ferdowsi University of Mashhad, Mashhad, Iran
Hesamoddin Seifi
Department of Clinical Sciences, Faculty of Veterinary Medicine, Ferdowsi University of Mashhad, Mashhad, Iran
مراجع و منابع این Paper:
لیست زیر مراجع و منابع استفاده شده در این Paper را نمایش می دهد. این مراجع به صورت کاملا ماشینی و بر اساس هوش مصنوعی استخراج شده اند و لذا ممکن است دارای اشکالاتی باشند که به مرور زمان دقت استخراج این محتوا افزایش می یابد. مراجعی که مقالات مربوط به آنها در سیویلیکا نمایه شده و پیدا شده اند، به خود Paper لینک شده اند :