دورية أكاديمية
Effect of protein level and methionine supplementation on dairy cows during the transition period.
| العنوان: | Effect of protein level and methionine supplementation on dairy cows during the transition period. |
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| المؤلفون: | Cardoso FF; Departamento de Zootecnia, Universidade Federal de Lavras, Lavras, MG 37200-900, Brazil., Donkin SS; Department of Animal Sciences, Purdue University, West Lafayette, IN 47907., Pereira MN; Departamento de Zootecnia, Universidade Federal de Lavras, Lavras, MG 37200-900, Brazil. Electronic address: mpereira@ufla.br., Pereira RAN; Empresa de Pesquisa Agropecuária de Minas Gerais, Lavras, MG 37200-900, Brazil., Peconick AP; Departamento de Medicina Veterinária, Universidade Federal de Lavras, Lavras, MG 37200-900, Brazil., Santos JP; Departamento de Medicina Veterinária, Universidade Federal de Lavras, Lavras, MG 37200-900, Brazil., Silva RB; Better Nature Research Center, Ijaci, MG 37.218-000, Brazil., Caproni VR; Departamento de Zootecnia, Universidade Federal de Lavras, Lavras, MG 37200-900, Brazil., Parys C; Evonik Nutrition & Care GmbH, 63457 Hanau-Wolfgang, Germany., Danes MAC; Departamento de Zootecnia, Universidade Federal de Lavras, Lavras, MG 37200-900, Brazil. Electronic address: marina.danes@ufla.br. |
| المصدر: | Journal of dairy science [J Dairy Sci] 2021 May; Vol. 104 (5), pp. 5467-5478. Date of Electronic Publication: 2021 Mar 06. |
| نوع المنشور: | Journal Article |
| اللغة: | English |
| بيانات الدورية: | Publisher: American Dairy Science Association Country of Publication: United States NLM ID: 2985126R Publication Model: Print-Electronic Cited Medium: Internet ISSN: 1525-3198 (Electronic) Linking ISSN: 00220302 NLM ISO Abbreviation: J Dairy Sci Subsets: MEDLINE |
| أسماء مطبوعة: | Publication: Champaign, IL : American Dairy Science Association Original Publication: Lancaster, Pa. [etc.] |
| مواضيع طبية MeSH: | Methionine* , Milk Proteins*, Animals ; Cattle ; Diet/veterinary ; Dietary Supplements ; Female ; Lactation ; Milk ; Postpartum Period ; Pregnancy ; Rumen |
| مستخلص: | Cows experience a significant negative protein balance during the first 30 d of lactation. Given the functional effects of AA on health, especially in challenging periods such as calving, higher levels of protein and specific AA in the diet may act to improve health and feed intake. The response of dairy cows to 3 protein supplementation strategies during the transition period and through the first 45 d in milk was evaluated. The final data set had 39 Holstein cows blocked based on parity (primiparous vs. multiparous) and expected calving and randomly assigned within each block to one of 3 dietary treatments: low protein (LP), high protein (HP), or high protein plus rumen-protected methionine (HPM). Treatments were offered from d -18 ± 5 to 45 d relative to parturition. Pre- and postpartum diets were formulated for high metabolizable protein (MP) supply from soybean meal, and HP and HPM provided higher MP balance than LP. Preplanned contrasts were LP versus HP+HPM and HP versus HPM. Significance was declared at P ≤ 0.05 and trends at 0.05 (The Authors. Published by Elsevier Inc. and Fass Inc. on behalf of the American Dairy Science Association®. This is an open access article under the CC BY-NC-ND license (http://creativecommons.org/licenses/by-nc-nd/4.0/).) |
| فهرسة مساهمة: | Keywords: blood markers; dry matter intake; immune system; milk fat |
| المشرفين على المادة: | 0 (Milk Proteins) AE28F7PNPL (Methionine) |
| تواريخ الأحداث: | Date Created: 20210309 Date Completed: 20210426 Latest Revision: 20210426 |
| رمز التحديث: | 20231215 |
| DOI: | 10.3168/jds.2020-19181 |
| PMID: | 33685687 |
| قاعدة البيانات: | MEDLINE |
Full Text Finder | تدمد: | 1525-3198 |
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| DOI: | 10.3168/jds.2020-19181 |