1,3-Bis(p-chlorobenzylideneamino)guanidine Hydrochloride (Robenzidene): New Poultry Anticoccidial Agent

S Kantor, RL Kennett Jr, E Waletzky, AS Tomcufcik - Science, 1970 - science.org
… For each treatment there were 20 birds except for E. tenella and E. necatrix, for which 40 …
with seven species, and it greatly reduced oocyst production with E. maxima. The ninth species, …

Resolution and Racemization of di-Tetramisole, di-6-Phenyl-2, 3, 5, 6-tetrahydroimidazo-[2, lb] thiazole

MW Bullock, JJ Hand, E Waletzky - Journal of medicinal chemistry, 1968 - ACS Publications
Results (see Tables I and II).—Preliminary investigations confirmed the observation that the-nitro
isomers regularly had higher activity than the corre-sponding 4-nitro isomers. 2 …

Laboratory anticoccidial evaluation trials: review of designs, variables, criteria, and predictive value for field use

E Waletzky - Experimental Parasitology, 1970 - Elsevier
This review shall focus primarily on the laboratory efficacy evaluation of anticoccidials in
chickens, for continuous longterm “preventive” use in feed rather than short-term “therapeutic” …

The relation between panthothenic acid and Plasmodium gallinaceum infections in the chicken and the antimalarial activity of analogues of pantothenic acid

S Brackett, E Waletzky, M Baker - The Journal of Parasitology, 1946 - JSTOR
The birds on the deficient diet grew poorly and at 21 to 25 days of age were only half the
control weight. From the second week on deaths were increasingly fre-quent and the classical …

A field strain of Eimeria tenella resistant to sulfonamides.

E Waletzky, R Neal, I Hable - 1954 - cabidigitallibrary.org
A strain of E. tenella isolated from 3 affected birds in a Delaware broiler flock which failed to
respond to conventional sulphaquin-oxaline or sulphadimidme treatment for caecal …

The anticoccidial activity of nitrophenide.

E Waletzky, CO Hughes, MC Brandt - 1949 - cabidigitallibrary.org
Nitrophenide (m m' dinitrodiphenyl disulphide) is a new type of anti-coccidial drug, which is
effective in the control of caecal coccidiosis caused by Eimeria tenella and intestinal …

Carbamoyl alkyl phosphorodithioates as chemotherapeutic agents: Screening by aedicidal properties in laboratory mammals, lambs and calves

R Hewitt, A Brebbia, E Waletzky - Journal of Economic …, 1958 - academic.oup.com
Procedures are given for the use of a mouse-mosquito (Aedes aegypti (L.)) test, and
supplementary tests in other mammals, in screening and evaluating compounds for …

New chemotherapeutic agents in enterohepatitis (blackhead) of turkeys

E Waletzky, JH Clark, HW Marson - Science, 1950 - science.org
Results. The results, presented in Table 1, show that streptomycin administered subcutaneously
once a day from the 4th through the 28th day after irradiation significantly reduced the …

The antimalarial activity of metachloridine (2-metanilamido-5-chloropyrimidine) and other metanilamide derivatives in test infections with Plasmodium gallinaceum

S Brackett, E Waletzky, M Baker, CO Hughes… - The Journal of …, 1946 - JSTOR
METHODS The procedures used for determining the relative activities of the test com have
been described in" A Survey of Antimalarial Drugs, 1941-1945." The curacy of these …

Factors involved in tests for acquired immunity in Eimeria tenella infections of the chicken.

E Waletzky, CO Hughes - 1949 - cabidigitallibrary.org
The relationship between the incidence and duration of pathological changes in the caecum
and the infective dose of sporulated oocysts was demonstrated in E. tenella infections in …