Results 51 to 60 of about 1,878 (194)

Effect of lasalocid in rations for growing heifers [PDF]

open access: yes, 1989
The 1989 Annual KSU Dairy Day is known as Dairy Day, 1989Sixty-four Holstein heifer calves were used from 10 to 26 wk of age to study the effects of lasalocid on growth and feed consumption.
Morrill, J.L.   +3 more
core   +1 more source

P450 Enzyme LyoI Performs Hydro‐2,2′‐Bifuran Oxidation in the Polyether Ionophore Lysocellin

open access: yesAngewandte Chemie, Volume 137, Issue 43, October 20, 2025.
In a study of the biosynthesis of the polyether ionophore lysocellin, the P450 enzyme LyoI was found to catalyze a rare oxidation of a hydro‐2,2′‐bifuran moiety to its hemiketal form. The oxidation was identified as the key for unlocking the bioactivity of lysocellin.
Michelle H. Rasmussen   +4 more
wiley   +2 more sources

Supplementation with lasalocid three times weekly to stocker cattle on pasture

open access: yes
Two experiments were conducted to study the efficacy of feeding lasalocid to cattle on pasture on a three times weekly basis. In experiment 1, 72 crossbred yearling steers were stratified across a randomized block design of 12 pens including three ...
DelCurto, Timothy
core   +6 more sources

Effect of route of administration of lasalocid on response of young dairy calves [PDF]

open access: yes, 1988
Forty newborn bull calves were assigned to one of four feeding groups. The feeds either contained lasalocid in milk (M), prestarter (PS), and starter (S); lasalocid in PS and S; lasalocid in S only; or no lasalocid.
Anderson, N.V.   +8 more
core   +1 more source

In vitro effect of pH on resistance of ruminal bacteria to intracellular potassium depletion, and effect of pH and ionophores on ammonia and microbial protein production Efeito do pH in vitro sobre a resistência de bactérias do rúmen à perda de potássio intracelular e efeito do pH e de ionóforos sobre a produção de amônia e proteína microbiana

open access: yesArquivo Brasileiro de Medicina Veterinária e Zootecnia, 2005
Ruminal fluid from steers fed on pasture was incubated with artificial media at pH 5.5 and 7.0 in two experiments. In the first, the effect of monensin level on resistance of ruminal bacteria to potassium depletion was evaluated; in the second, effects ...
W.M. Leopoldino   +8 more
doaj   +1 more source

Cylinder Plate Assay for Lasalocid Sodium

open access: yesJournal of AOAC INTERNATIONAL, 1974
Abstract A microbiological assay method is described for the determination of the coccidiostat lasalocid sodium in premixes and finished poultry feeds. Premixes are extracted with absolute methanol and diluted to assay range with 25% methanol in the final dilution.
J M, Scheiner, W M, Cort, J, Chen
openaire   +2 more sources

Kineochelins—A New Group of Siderophores From an Antarctic Bacterium

open access: yesMicrobial Biotechnology, Volume 19, Issue 6, June 2026.
Genome‐guided analysis of an Antarctic Actinokineospora strain led to the discovery of kineochelins, a new group of siderophores involved in iron sequestration and microbial competition. Kineochelin production inhibits co‐occurring bacteria and clinically relevant yeasts, highlighting Antarctic microorganisms as promising sources of bioactive natural ...
Stanislava Kralova   +12 more
wiley   +1 more source

Intoxicação por antibióticos ionóforos em animais Ionophore poisoning in animals

open access: yesPesquisa Veterinária Brasileira, 2009
O uso terapêutico de antibióticos ionóforos em medicina veterinária difundiu-se muito nos últimos anos, com conseqüente aumento no risco de intoxicação em animais.
Vivian Assunção Nogueira   +2 more
doaj   +1 more source

Suplementação de bovinos em pastagens de Coastcross (Cynodon dactylon (L.) Pers) no inverno Cattle supplementation on Coastcross pasture (Cynodon dactylon (L.) Pers) during the winter

open access: yesRevista Brasileira de Zootecnia, 2004
O experimento foi realizado no município de Luiziana, noroeste do Estado do Paraná, no período de junho a outubro de 2000. Foram utilizados 24 novilhos inteiros, com nove meses de idade e peso inicial médio de 223 kg, pertencentes a dois grupos genéticos
Paulo Emílio Fernandes Prohmann   +5 more
doaj   +1 more source

Heterocyclic‐Fused Squaramides: Anionophores With Antimicrobial Activity

open access: yesChemBioChem, Volume 27, Issue 5, 13 March 2026.
Supramolecular medicinal chemistry has allowed for the development of novel drugs for the treatment of cystic fibrosis, and in the fight against cancer. However, little has been done to develop these as antimicrobial agents. Here, we describe the development of novel chemical tools to further develop supramolecular methods to combat the global plight ...
Luke Edward Brennan   +3 more
wiley   +1 more source

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