biostudies-literatureDong JScientific and Technological Developing Scheme of Jilin Province429-442https://www.ebi.ac.uk/biostudies/studies/S-EPMC9857101biostudies-literatureUnknown9(1)<h4>Background</h4>Even if breed, parity, dietary and environmental management are same, dairy cows still have notable differences in milk yield that may be underpinned by physiologic differences.<h4>Objectives</h4>This study aimed to investigate the physiological dissimilarities of dairy cows with different milk yields.<h4>Methods</h4>Thirty cows were sorted into high milk-yielding cows (group H: 58.93±2.31 kg/day), moderate milk-yielding cows (group M: 44.99±0.54 kg/day), and low milk-yielding cows (group L: 24.99±6.83 kg/day) according to milk yield. Blood was collected and serum parameters were assessed. Rumen fluid was collected for the evaluation of rumen fermentation parameters (RFPs) and bacterial community composition (BCC).<h4>Results</h4>Serum prolactin, growth hormone, glutathiVeterinary medicine and scienceThe physiological dissimilarities of Holstein dairy cows with different milk yields.PMC985710120210202037NC20210508007RQLiu YLi SDong JWang DZhang XWang TChen XQin GAschalew NDZhen YSun ZfalseThe physiological dissimilarities of Holstein dairy cows with different milk yields.<h4>Background</h4>Even if breed, parity, dietary and environmental management are same, dairy cows still have notable differences in milk yield that may be underpinned by physiologic differences.<h4>Objectives</h4>This study aimed to investigate the physiological dissimilarities of dairy cows with different milk yields.<h4>Methods</h4>Thirty cows were sorted into high milk-yielding cows (group H: 58.93±2.31 kg/day), moderate milk-yielding cows (group M: 44.99±0.54 kg/day), and low milk-yielding cows (group L: 24.99±6.83 kg/day) according to milk yield. Blood was collected and serum parameters were assessed. Rumen fluid was collected for the evaluation of rumen fermentation parameters (RFPs) and bacterial community composition (BCC).<h4>Results</h4>Serum prolactin, growth hormone, glutathi2023-01-01T00:00:00Z2023 Jan2025-04-19T06:45:57.032Z2025-04-19T06:45:57.032ZS-EPMC98571013625175710.1002/vms3.966