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Responses to methionine, lysine plus histidine at two levels of energy in dairy cows

Abstract : Increasing the supplies of methionine (Met), lysine (Lys), and histidine (His) at two levels of net energy of lactation (NEL) increased milk protein yield (MPY) and metabolisable protein (MP) efficiency (MP_Eff), reducing the efficiency (Eff) of these amino acids (AA) but increasing the Eff of the other essential AA (EAA). The increased MPY occurred with different changes in mammary net uptake (MGU) of AA in response to AA or NEL supplies. In addition, milk yield (MY) tended increased or increased in response to AA or NEL, respectively.
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https://hal.archives-ouvertes.fr/hal-02292495
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Submitted on : Thursday, September 19, 2019 - 8:09:35 PM
Last modification on : Wednesday, April 6, 2022 - 4:08:16 PM

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Cléo Omphalius, Helène Lapierre, L. Bahoul, Sophie Lemosquet. Responses to methionine, lysine plus histidine at two levels of energy in dairy cows. 6. International Symposium on Energy and Protein Metabolism (Isep), Sep 2019, Belo Horizonte, Brazil. ⟨10.3920/978-90-8686-891-9_44⟩. ⟨hal-02292495⟩

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