Performance of dairy cows fed diets with similar proportions of undigested neutral detergent fiber with wheat straw substituted for alfalfa hay, corn silage, or both.
dairy cow
forage source
straw
undigested neutral detergent fiber
Journal
Journal of dairy science
ISSN: 1525-3198
Titre abrégé: J Dairy Sci
Pays: United States
ID NLM: 2985126R
Informations de publication
Date de publication:
Dec 2019
Dec 2019
Historique:
received:
27
04
2019
accepted:
31
07
2019
pubmed:
25
9
2019
medline:
29
1
2020
entrez:
25
9
2019
Statut:
ppublish
Résumé
This study evaluated the effects of feeding diets that were formulated to contain similar proportions of undigested neutral detergent fiber (uNDF) from forage, with wheat straw (WS) substituted for corn silage (CS), alfalfa hay (AH), or both. The diets were fed to lactating dairy cows and intake, digestibility, blood metabolites, and milk production were examined. Thirty-two multiparous Holstein cows (body weight = 642 ± 50 kg; days in milk = 78 ± 11 d; milk production = 56 ± 6 kg/d; mean ± standard deviation) were used in a randomized block design with 6-wk periods after a 10-d covariate period. Each period consisted of 14 d of adaptation followed by 28 d of data collection. The control diet contained CS and AH as forage sources (CSAH) with 17% of dietary dry matter as uNDF after 30 h of incubation (uNDF
Identifiants
pubmed: 31548057
pii: S0022-0302(19)30833-1
doi: 10.3168/jds.2019-16869
pii:
doi:
Substances chimiques
Dietary Fiber
0
Milk Proteins
0
Types de publication
Journal Article
Randomized Controlled Trial, Veterinary
Langues
eng
Sous-ensembles de citation
IM
Pagination
10903-10915Informations de copyright
Copyright © 2019 American Dairy Science Association. Published by Elsevier Inc. All rights reserved.