In a study led by South Dakota State University, researchers evaluated the effects of rumen-protected methionine (Smartamine® M) on lactation performance and liver glutathione of lactating dairy cows during a subclinical mastitis challenge.
Cows either received a control diet or one supplemented with 0.09% rumen-protected methionine, and mastitis was induced in one quarter of each mammary gland.
There was a trend for greater milk yield after subclinical mastitis in cows supplemented with rumen protected methionine compared to controls. Milk protein percent was higher in Smartamine® M (+0.19% units) before the challenge and was maintained post challenge. The milk fat percent for Smartamine® M increased by 0.43% immediately post challenge. No differences were observed in energy metabolites or dry matter intake. There were also greater liver glutathione levels in supplemented cows. These results show that methionine supplementation during subclinical mastitis may positively affect milk performance and increase liver glutathione in lactating dairy cows.
A second abstract examined inflammation and immune response results of the cows in this trial, showing that methionine supplementation during a subclinical mastitis challenge may control inflammation and oxidative stress while potentially increasing immune cell capabilities through enhanced cellular protein synthesis.
Based on 2022 American Dairy Science Association (ADSA) abstracts:
1224 Rumen-protected methionine supplementation improves oxidative status and lactation performance during a subclinical mastitis challenge in lactating dairy cows.
1223 Rumen-protected methionine supplementation during subclinical mastitis challenge benefit dairy cow inflammation and immune cell mTOR pathway.
Features Anita Paz, MSc student at the South Dakota State University. Tainara Michelotti, MSc student at the South Dakota State University. Dr. Brian Sloan, Global Director of Ruminant Amino Acids and Protected Nutrient Business, Adisseo. Dr. Daniel Luchini, Head of Ruminant R&I, Adisseo.
To view abstracts, go to: https://www.adisseo.com/en/products/smartline/smart-science-series-ruminant-videos-and-podcasts/
In a study led by South Dakota State University, researchers evaluated the effects of rumen-protected methionine (Smartamine® M) on lactation performance and liver glutathione of lactating dairy cows during a subclinical mastitis challenge.
Cows either received a control diet or one supplemented with 0.09% rumen-protected methionine, and mastitis was induced in one quarter of each mammary gland.
There was a trend for greater milk yield after subclinical mastitis in cows supplemented with rumen protected methionine compared to controls. Milk protein percent was higher in Smartamine® M (+0.19% units) before the challenge and was maintained post challenge. The milk fat percent for Smartamine® M increased by 0.43% immediately post challenge. No differences were observed in energy metabolites or dry matter intake. There were also greater liver glutathione levels in supplemented cows. These results show that methionine supplementation during subclinical mastitis may positively affect milk performance and increase liver glutathione in lactating dairy cows.
A second abstract examined inflammation and immune response results of the cows in this trial, showing that methionine supplementation during a subclinical mastitis challenge may control inflammation and oxidative stress while potentially increasing immune cell capabilities through enhanced cellular protein synthesis.
Based on 2022 American Dairy Science Association (ADSA) abstracts:
1224 Rumen-protected methionine supplementation improves oxidative status and lactation performance during a subclinical mastitis challenge in lactating dairy cows.
1223 Rumen-protected methionine supplementation during subclinical mastitis challenge benefit dairy cow inflammation and immune cell mTOR pathway.
Features Anita Paz, MSc student at the South Dakota State University. Tainara Michelotti, MSc student at the South Dakota State University. Dr. Brian Sloan, Global Director of Ruminant Amino Acids and Protected Nutrient Business, Adisseo. Dr. Daniel Luchini, Head of Ruminant R&I, Adisseo.
To view abstracts, go to: https://www.adisseo.com/en/products/smartline/smart-science-series-ruminant-videos-and-podcasts/