tailieunhanh - Báo cáo khoa học: "Effect of yeast culture on milk production and metabolic and reproductive performance of early lactation dairy cows"

Tuyển tập các báo cáo nghiên cứu về bệnh học thý y được đăng trên tạp chí Acta Veterinaria Scandinavica cung cấp cho các bạn kiến thức về bệnh thú y đề tài: Effect of yeast culture on milk production and metabolic and reproductive performance of early lactation dairy cows. | Acta Veterinaria Scandinavica BioMed Central Research Effect of yeast culture on milk production and metabolic and reproductive performance of early lactation dairy cows Piret Kalmus 41 Toomas Orro2 Andres Waldmann3 Raivo Lindjarv4 and Kalle Kask1 Address department of Therapy Institute of Veterinary Medicine and Animal Science Estonian University of Life Sciences Tartu 51014 Estonia department of Environment and Animal Health Institute of Veterinary Medicine nad Animal Science Estonian University of Life Sciences Tartu 51014 Estonia department of Reproductive Biology Institute of Veterinary Medicine and Animal Science Estonian University of Life Sciences Tartu 51014 Estonia and department of Infectious Diseases Institute of Veterinary Medicine and Animal Science Estonian University of Life Sciences Tartu 51014 Estonia Email Piret Kalmus - Toomas Orro - Andres Waldmann - waldmann@ Raivo Kalle Kask - Corresponding author tEqual contributors Open Access Published 3 August 2009 Received 24 October 2008 Acta Veterinaria Scandinavica 2009 51 32 doi 1751-0147-51-32 Accepted 3 August 2009 This article is available from http content 51 1 32 2009 Kalmus et al licensee BioMed Central Ltd. This is an Open Access article distributed under the terms of the Creative Commons Attribution License http licenses by which permits unrestricted use distribution and reproduction in any medium provided the original work is properly cited. Abstract Background The main objective of this study was to estimate the effect of supplementation with Saccaromyces cerevisiae SC Yea-Sacc 1026 on milk production metabolic parameters and the resumption of ovarian activity in early lactation dairy cows. Methods The experiment was conducted during 2005 2006 in a commercial tied-house farm with an average of 200 milking Estonian Holstein Friesian cows. The late