Effect of Alkaline Mineral Complex Buffer Supplementation on Milk Performance, Serum Variables, Rumen Fermentation and Rumen Microbiota of Transition Dairy Cows
Cheng Guo,
Fanlin Kong,
Shengli Li,
Xiaowei Wang,
Xiaoge Sun,
Wen Du,
Dongwen Dai,
Shuo Wang,
Biao Xie,
Xiaofeng Xu
Affiliations
Cheng Guo
State Key Laboratory of Animal Nutrition and Feeding, Beijing Engineering Technology Research Center of Raw Milk Quality and Safety Control, College of Animal Science and Technology, China Agricultural University, Beijing 100193, China
Fanlin Kong
State Key Laboratory of Animal Nutrition and Feeding, Beijing Engineering Technology Research Center of Raw Milk Quality and Safety Control, College of Animal Science and Technology, China Agricultural University, Beijing 100193, China
Shengli Li
State Key Laboratory of Animal Nutrition and Feeding, Beijing Engineering Technology Research Center of Raw Milk Quality and Safety Control, College of Animal Science and Technology, China Agricultural University, Beijing 100193, China
Xiaowei Wang
School of Agriculture, Ningxia University, Yinchuan 750021, China
Xiaoge Sun
State Key Laboratory of Animal Nutrition and Feeding, Beijing Engineering Technology Research Center of Raw Milk Quality and Safety Control, College of Animal Science and Technology, China Agricultural University, Beijing 100193, China
Wen Du
State Key Laboratory of Animal Nutrition and Feeding, Beijing Engineering Technology Research Center of Raw Milk Quality and Safety Control, College of Animal Science and Technology, China Agricultural University, Beijing 100193, China
Dongwen Dai
School of Agriculture, Ningxia University, Yinchuan 750021, China
Shuo Wang
State Key Laboratory of Animal Nutrition and Feeding, Beijing Engineering Technology Research Center of Raw Milk Quality and Safety Control, College of Animal Science and Technology, China Agricultural University, Beijing 100193, China
Biao Xie
State Key Laboratory of Animal Nutrition and Feeding, Beijing Engineering Technology Research Center of Raw Milk Quality and Safety Control, College of Animal Science and Technology, China Agricultural University, Beijing 100193, China
Xiaofeng Xu
School of Agriculture, Ningxia University, Yinchuan 750021, China
The present study investigates the effect of 50 mL AMCB taken daily as a dietary supplement on the rumen fermentation, microbiota, and production performance of 40 Holstein dairy cows in the transition period with 2.76 ± 0.48 parity and 650 ± 25 kg body weight. AMCB supplementation stabilized rumen pH, improved rumen microbiota richness and partial probiotic colonization, and considerably increased dry matter intake, milk production, protein content, and yield. Moreover, after calving, AMCB supplementation considerably reduced the serum blood urea nitrogen, malondialdehyde, hydrogen peroxide, alanine aminotransferase, and aspartate transaminase levels and increased the serum immunoglobulin G and A levels. The results indicated that AMCB dietary supplementation improved postpartum dry matter intake, production performance, partial immune function, antioxidant capacity, and rumen microbiota richness in Holstein dairy cows in the transition period. AMC is an excellent candidate for use as a rumen buffer.
