Effect of rumen-protected L-tryptophan on productivity and metabolic responses in dry Holstein cows under heat stress conditions
Jang Hoon Jo, Jalil Ghassemi Nejad, Moon Jun Ok, Hong Gu Lee · 2026
Read Effect of rumen-protected L-tryptophan on productivity and metabolic responses in dry Holstein cows under heat stress conditions by Jang Hoon Jo, Jalil Ghassemi Nejad, Moon Jun Ok, Hong Gu Lee (2026) in the Tower of Babel, a free online library of public-domain works preserved in clean, searchable text. No sign-up. The full text is served as a plain-text file at a predictable URL, where text is present: https://antarctic-labs.com/tower-of-babel/pmc-13381574.txt.
Description
Jang Hoon Jo and co-authors feed a protected amino acid to dry cows under heat stress in 2026. Heat and humidity strain dairy cows and cut their output. The supplement is coated so it passes the first stomach and can be taken up later.
Eight cows were tested in climate rooms under mild and harsh heat settings. Feed intake rose in the harsh setting with the supplement, while body heat fell. Blood values shifted for sugar, a hunger signal, and waste nitrogen. Gene activity for a heat shock protein rose in blood cells, and blood chemistry showed a distinct pattern under harsh heat.
Catalog record
| CREATOR | Jang Hoon Jo, Jalil Ghassemi Nejad, Moon Jun Ok, Hong Gu Lee |
|---|---|
| YEAR | 2026 |
| COLLECTION | PAPERS |
| FORMAT | TXT |
| FILE SIZE | 69 KB |
| VERSION | 1.0 |
| LICENSE | CC BY 4.0 |
| RIGHTS | CC BY |
| SOURCE | Europe PMC |