PubMed Health⌕ Search
Home/Archive/PubMed

PubMed · 1893283

Feed additives.

M F Hutjens
View original source ↗Export metadata ↓

Abstract

Feed additives used to supplement dairy rations can increase daily feed cost from 2 to 65 per animal. The economic response (benefit to cost ratio) varies from $2.00 to $12.00 for each dollar invested in a specific additive. Knowledgeable dairy veterinarians must understand the role of each additive, when it will be beneficial, inclusion level, strategies and limitations associated with an additive, research and field recommendations, and measurable responses to monitor. Dairy additives and various methods to evaluate their role and economic response objectively are discussed.

Explore related subjects

Animal FeedAnimalsCattleCosts and Cost AnalysisFood AdditivesLactationMilkJournal ArticleReview

Keep this discovery

Explore connections, maps & timelines

BibTeXRIS

M F Hutjens. 1991. Feed additives.. https://doi.org/10.1016/s0749-0720(15)30789-1

Cite the original work for its findings. Save a collection to share your selection of sources.

KEEP EXPLORING

Related citations

PubMed1992

Rumen microbiology, biotechnology and ruminant nutrition: the application of research findings to a complex microbial ecosystem.

Research on rumen microorganisms has contributed greatly to our understanding of anaerobic microbial ecosystems, and has also influenced feeding practices and nutritional modelling with ruminants. However, it can be argued that rumen microbiology has not yet fulfilled its true potential. Growth-promoting ionophores, antibiotics and microbial feed additives were introduced before their microbiological effects had been determined. A more pro-active role for the microbiologist was predicted with the advent of recombinant DNA technology. Whether ventures in molecular biology can be applied successfully to benefit nutrition and health is likely to depend on whether means can be found for maintaining new strains in vivo.

Animal Feed↗
PubMed1992

A double-blind comparison of olive oil and a combination of evening primrose oil and fish oil in the management of canine atopy.

A randomised double-blind parallel study lasting eight weeks was used to assess the effects of olive oil in a group of atopic dogs whose clinical signs were well controlled by dietary supplementation with a combination of evening primrose oil and fish oil. Nine of the 11 dogs which continued to receive this combination were considered unchanged at the conclusion of the study, whereas eight of the 10 dogs switched to olive oil had deteriorated. The mean plasma concentration of dihomogammalinolenic acid, a precursor of potentially antiinflammatory mediators, was significantly reduced (P < 0.05) in the olive oil-treated group at the end of the study. There were no significant differences between the mean plasma linoleic, eicosapentaenoic and arachidonic acid concentrations in the two groups. These findings suggest that olive oil is not an effective therapeutic agent in the control of canine atopy.

Animal Feed↗
PubMed1992

Oesophageal choke in an African elephant.

A young African elephant suffered a fatal obstruction of the caudal oesophagus caused by an ingested apple. This report describes the attempts made to relieve the obstruction and the subsequent post mortem findings.

Animal Feed↗