Effect of direct-fed microbials on performance, diet digestibility, and rumen characteristics of Holstein dairy cows.

Effect of direct-fed microbials on performance, diet digestibility, and rumen characteristics of Holstein dairy cows. Research Abstract Details 

Research Abstract Table of Contents

Jump to the:

Effect of direct-fed microbials on performance, diet digestibility, and rumen characteristics of Holstein dairy cows. Abstract Text:

M L Raeth-Knight,J G Linn,H G Jung,

The objective of this study was to determine the effect of feeding direct-fed microbial (DFM) products containing Lactobacillus acidophilus and Propionibacteria freudenreichii on the performance, nutrient digestibility, and rumen fermentation of Holstein dairy cows in midlactation. Experiments were conducted from February to May 2003. Cows were fed 1 of 3 dietary treatments: 1) 1 x 10(9) colony-forming units (cfu)/d of live L. acidophilus strain LA747 and 2 x 10(9) cfu/d of live P. freudenreichii strain PF24 (DFM1); 2) 1 x 10(9) cfu/d of live L. acidophilus strain LA747, 2 x 10(9) cfu/d of live P. freudenreichii strain PF24, and 5 x 10(8) cfu/d of L. acidophilus strain LA45 (DFM2); or 3) lactose (control). Treatments were administered by mixing 45 g of finely ground corn with 5 g of DFM products or lactose and top dressing on the total mixed rations once daily. All cows received the same total mixed ration: 12.7% alfalfa hay, 46.2% corn silage, and 41.1% concentrate on a dry matter (DM) basis. In study 1 (lactation study), 39 multiparous and 18 primiparous Holstein cows were blocked by parity and randomly assigned to treatments for 84 d. Starting on d 35, fecal grab samples were collected from each cow at 5- to 8-h intervals over 48 h for digestibility measurements. A rumen fermentation study (study 2) was conducted concurrently with the lactation study. Three rumenfistulated, multiparous Holstein cows were randomly assigned to dietary treatments DFM1, DFM2, and control in a 3 x 3 Latin square design with 28-d periods. In study 1, there was no difference in average DM intake (23.9, 23.6, and 24.2 kg/d) or 4% fat-corrected milk (36.8, 35.3, and 36.2 kg/d) for treatments DFM1, DFM2, and control. Percentage or yield of milk components also did not differ among treatments. Feed efficiency averaged 1.52 kg of 4% fat-corrected milk/kg of DM intake and did not differ among treatments. There were no differences in apparent DM, crude protein, neutral detergent fiber, or starch digestibility among treatments. In study 2, there was no difference in rumen pH and concentrations of ammonia or total volatile fatty acids measured at 0, 1, 3, and 6 h after feeding. Under the conditions of these studies, supplementing midlactation cows with DFM products containing L. acidophilus and P. freudenreichii did not affect cow performance, diet digestibility, or rumen fermentation.

Effect of direct-fed microbials on performance, diet digestibility, and rumen characteristics of Holstein dairy cows. Publishing Authors By Initials

ML Raeth-Knight,JG Linn,HG Jung,

For similar abstracts research abstracts see: abstracts research

PUBMED ID PMID:

MEDLINE DATE:

Effect of direct-fed microbials on performance, diet digestibility, and rumen characteristics of Holstein dairy cows. Journal Published:

PUBLICATION TYPE: Research Support, Non-U.S. Gov

Journal: Journal of dairy science

VOLUME: 90

Page Numbers: 1802-9

Journal Abbreviation: J. Dairy Sci.

ISSN: 1525-3198

DAY: 19

MONTH: Apr

YEAR: 2007

Effect of direct-fed microbials on performance, diet digestibility, and rumen characteristics of Holstein dairy cows. Information

Number of References:

LANGUAGE: eng

NlmUniqueID: 2985126

Effect of direct-fed microbials on performance, diet digestibility, and rumen characteristics of Holstein dairy cows. Keywords Mesh Terms:

KEYWORDS:

MESH TERMS:

Chemical & Substance for Abstract: Effect of direct-fed microbials on performance, diet digestibility, and rumen characteristics of Holstein dairy cows. Information

Substance Name:

Registry Number:

Grant and Affiliation Information for Effect of direct-fed microbials on performance, diet digestibility, and rumen characteristics of Holstein dairy cows.

AFFILIATION: Department of Animal Science, University of Minnesota, St. Paul 55108, USA. raeth003@umn.edu

Country: United States

AGENCY:

GRANT:

ACRONYM:

MEDLINETA: J Dairy Sci

REFSOURCE:

DATABASENAME:

ACCESSION NUMBER:

Number Hits: 0

Effect of direct-fed microbials on performance, diet digestibility, and rumen characteristics of Holstein dairy cows Related Publications

• (-)-Epigallocatechin-3-gallate inhibits monocyte chemotactic protein-1 expression in endothelial cells via blocking NF-kappaB signaling.
• Bayesian analysis of paired survival data using a bivariate exponential distribution.
• Bilateral chylothoraces without chyle leakage after left-sided neck dissection for thyroid cancer: report of two cases.
• Broadband noise reduction of piezoelectric smart panel featuring negative-capacitive-converter shunt circuit.
• Complete mitochondrial genome of the rabbitfish Siganus fuscescens (Perciformes, Siganidae).
• Developmental properties of the Hertwig's epithelial root sheath in mice.
• Downregulation of gamma interferon receptor 1 by Kaposi's sarcoma-associated herpesvirus K3 and K5.
• E1 component of pyruvate dehydrogenase complex does not regulate the expression of NADPH-ferredoxin reductase in Azotobacter vinelandii.
• Effect of direct-fed microbials on performance, diet digestibility, and rumen characteristics of Holstein dairy cows.
• Effects of pioglitazone and insulin on tight glycaemic control assessed by the continuous glucose monitoring system : a monocentric, parallel-cohort study.
• Efficacy of low-dose tamsulosin on lower urinary tract symptoms suggestive of benign prostatic hyperplasia : a nonblind multicentre korean study.
• Elevated plasma osteopontin as marker for distant metastases and poor survival in patients with renal cell carcinoma.
• Free radical scavenging and skin penetration of troxerutin and vitamin derivatives.
• Gene expression profiling in lung tissues from rats exposed to formaldehyde.
• Germline methylation patterns inferred from local nucleotide frequency of repetitive sequences in the human genome.
• Inhibition of interferon regulatory factor 7 (IRF7)-mediated interferon signal transduction by the Kaposi's sarcoma-associated herpesvirus viral IRF homolog vIRF3.
• Learning-induced enduring changes in functional connectivity among prefrontal cortical neurons.
• Monitoring Driver's Alertness Based on the Driving Performance Estimation and the EEG Power Spectrum Analysis.
• Performance of membrane-coupled organic acid fermentor for the resources recovery form municipal sewage sludge.
• Prognostic significance of the MUC1 and MUC4 expressions in thyroid papillary carcinoma.
• Reliable WAnT time about competitive abilities performed by elite racing cyclists in Korea: 2404: Board #83 June 1 2:00 PM - 3:30 PM.
• Statistics for proteomics: a review of tools for analyzing experimental data.
• The Kaposi's sarcoma-associated herpesvirus K5 E3 ubiquitin ligase modulates targets by multiple molecular mechanisms.
• The nucleoside analog sangivamycin induces apoptotic cell death in breast carcinoma MCF7/adriamycin-resistant cells via protein kinase Cdelta and JNK activation.
• Total knee arthroplasty in patients with severe deformities due to rheumatoid arthritis.
• Total knee arthroplasty in patients with severe deformities due to rheumatoid arthritis.
• [Analysis of survival and factors affecting the survival after surgical resection of peripheral cholangiocarcinoma: 318 cases in single institute]
• [Developmental direction for review system of the journal of korean academy of nursing]
• [Nursing images appearing in elementary school textbooks under the 7th national curriculum]
• [The officers of health in the department of Moselle.]