Results 11 to 20 of about 1,772 (205)

Trends in Veterinary Drug Residues in US Cattle: Analysing USDA Sampling Data. [PDF]

Vet Med Sci
National US residue monitoring data (2021–2023) were analysed to characterise veterinary drug residue detections in cattle. Detection patterns varied by cattle type, with dairy cows accounting for the highest number of detections and a consistent group of commonly used drugs responsible for most violative and non‐violative findings.
Alwahaimed AS, Eifert J.
europepmc   +2 more sources

Structural Basis of Sequential Enantioselective Epoxidation by a Flavin-Dependent Monooxygenase in Lasalocid A Biosynthesis. [PDF]

Angew Chem Int Ed Engl
Lsd18 is a flavin‐dependent monooxygenase from Streptomyces lasalocidi that performs two enantioselective epoxidations during lasalocid A biosynthesis. X‐ray crystal structures of Lsd18 bound to a substrate and product analogue illuminate how this enzyme performs multiple epoxidations on the same substrate molecule and how it controls stereoselectivity.
Wang Q, Deng Y, Viera D, Liu X, Liu N, Hu Y, Hu X, Wei H, Zhou Q, Lan T, He W, Chen X, Kim CY.   +12 more
europepmc   +3 more sources

Assessment of the application for modification of the terms of the authorisation of the feed additive consisting of <i>Bacillus velezensis</i>ATCC PTA-6737 (PB6) for all pigs, all poultry species for fattening or reared for laying/breeding, laying hens, minor poultry species for laying and ornamental birds (Kemin Europa N.V.). [PDF]

EFSA J
Abstract Following a request from the European Commission, EFSA was asked to deliver a scientific opinion on the safety and efficacy of the preparation consisting of viable spores of Bacillus velezensis ATCC PTA‐6737 (tradename PB6). PB6 is currently authorised for use as a zootechnical additive (functional group: gut flora stabilisers) for all poultry
EFSA Panel on Additives and Products or Substances used in Animal Feed (FEEDAP), Villa RE, Azimonti G, Bonos E, Christensen H, Durjava M, Dusemund B, Gehring R, Glandorf B, Kouba M, López-Alonso M, Marcon F, Nebbia C, Pechová A, Prieto-Maradona M, Theodoridou K, Anguita M, Innocenti ML, Galobart J, Brozzi R.   +19 more
europepmc   +2 more sources

Experimental determination of comparative sensitivity of eimeria to chemotherapeutic preparations and phytobiotics [PDF]

BIO Web of Conferences, 2022
The sensitivity of the organism of broiler chickens artificially infested with a mixture of three types of eimeria to anti-eimeria drugs used in the Belgorod region was determined.
Yakovleva Inessa
doaj   +1 more source

The effect of lasalocid sodium on growth performance and possible coccidiosis in weaned akkaraman lambs [PDF]

Eurasian Journal of Veterinary Sciences
This experiment was carried out to investigate the effects of Na -lasalocid that was added into concentrate mixtures in 25, 50 and 75 g per ton on growth performance and against the possible coccidia infection of lambs.
Şakir Doğan TUNCER, Behiç COŞKUN, Rıfat CANTORAY, Mehmet Ali TEKEŞ   +3 more
doaj   +2 more sources

Safety and efficacy of a feed additive consisting of <i>Bacillus velezensis</i>NRRL B-67647, <i>Bacillus pumilus</i>NRRL B-67648 and <i>Bacillus licheniformis</i>NRRL B-67649 (Microsaf®) for chickens for fattening, other poultry for fattening and ornamental birds (S.I. Lesaffre). [PDF]

EFSA J
Abstract Following a request from the European Commission, EFSA was asked to deliver a scientific opinion on the safety and efficacy of Microsaf® when used as a feed additive for chickens for fattening, other poultry for fattening and ornamental birds.
EFSA Panel on Additives and Products or Substances used in Animal Feed (FEEDAP), Villa RE, Azimonti G, Bonos E, Christensen H, Durjava M, Dusemund B, Gehring R, Glandorf B, Kouba M, López-Alonso M, Marcon F, Nebbia C, Pechová A, Prieto-Maradona M, Röhe I, Theodoridou K, Mayo B, Anguita M, Cionci NB, Brozzi R, Innocenti ML, Ortuño J, Valeri P, García-Cazorla Y.   +24 more
europepmc   +2 more sources

Copper(II), a Peculiar Metal Ion for Complexation With Monensin A Ionophore. [PDF]

Chemistry
Copper(II) forms three chiral and EPR‐active complexes with monensinate A in methanol. Beside the bis [CuL2] and mono [CuL]+ species, the new dinuclear construct [Cu2L]3+ exhibits an [ML]+‐type and a metal salt‐type copper(II) centers weakly bound to each other through counter ion(s) and thus, being magnetically independent.
Kis ML, Hajdu B, Jakusch T, Kele Z, Dorkov P, Kukeva R, Pantcheva I, Gyurcsik B.   +7 more
europepmc   +2 more sources

Bepaling van lasalocid-natrium in mengvoeders [PDF]

, 1981
Lasalocid-natrium is een coccidiostaticum, dat gebruikt wordt bij kippen op een doseringsniveau tussen 75 en 125 mg/kg. De analyse van het produkt in voeder kan zowel microbiologisch als chemisch geschieden. De voorkeur wordt gegeven aan de chemische methode, omdat deze specifieker is dan een microbiologische methode.
Beek, W.M.J., Buizer, F.G., Hollman, P.
openaire   +2 more sources

EFFECT OF LASALOCID SUPPLEMENTATION ON SOME METABOLIC AND ENDOCRINE PARAMETERS IN TURKEY POULTS. [PDF]

Assiut Veterinary Medical Journal, 2006
SUMMARY Lasalocid, a carboxylic ionophore antibiotic, is used frequently in poultry feeds as a coccidiostat, however the present study centered on its role as growth promoter and in steroidogenesis.
F.A.R. SAWIRESS, M.Z. ATTIA, SOHAIR Y. SALEH   +2 more
doaj   +1 more source

INFLUENCE OF DIETARY LASALOCID ON SOME SERUM CHARACTERSTICS AS WELL AS SEMEN QUALITY AND FREEZABILITY IN ADULT BARKI RAMS [PDF]

Assiut Veterinary Medical Journal, 1997
To study the effect of dietary lasalocid on serum insulin, cholesterol, Ca, P, Mg, Zn and Cu as well as semen quality and freezability, a number of six mature Barki rams (about 26 months of age and 46.5kg) were used during the periods of pretreatment ...
M. A. HEGAZY, MARY G. ABDEL MALK, MAHA S. ZIADA   +2 more
doaj   +1 more source