Results 71 to 80 of about 128,209 (338)
Occurrence of Salmonella sp in laying hens [PDF]
Revista Brasileira de Ciência Avícola, 2003 This study was carried out to investigate the presence of Salmonella sp in flocks of white laying hens. In different farms, the transport boxes of twelve flocks were inspected at arrival for the presence of Salmonella. Four positive (A, B, L and M) and one negative (I) flocks were monitored at each four weeks using bacteriological examination of cecal ...
Gama, NMSQ +2 more
openaire +7 more sources
Search for the ideal laying hen for organic and free range systems [PDF]
, 2011 Since 1960 the majority of commercial layers are housed in cages. Non-cage housing started to appear again from 1980 onwards and increases in importance. It is questionable if birds bred to perform in cages are also suited for free range housing.
Bestman, Monique +7 more
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Animal Research and One Health, EarlyView.Dietary selenium (Se) deficiency is recognized as a global problem, and exogenous Se supplementation can effectively enrich its levels in animal bodies. Offal tissues are equally important as meat in Se enrichment. Varying properties among Se species require information beyond total Se concentration to fully evaluate health risk/benefits.
Xiaoqing Guo +9 more
wiley +1 more source
Brazilian Journal of Poultry ScienceThis study was conducted to evaluate effects of cassava (Manihot esculenta Crantz) root meal (CRM) in laying hen diets containing corn dried distiller grains with soluble (DDGS) on production performance, egg quality, and excreta noxious gas emission ...
XJ Lei, JH Park, A Hosseindoust, IH Kim
doaj +1 more source
Magnesium Requirement of the Laying Hen ,
Poultry Science, 1968 Abstract THE quantitative requirement for magnesium by laying hens has not been established. The National Research Council in 1966 listed the growing chicken's requirement as 500 mg. magnesium per kilogram of feed, but gave no estimate of the hen's requirement while Edwards et al. (1961) showed that the phosphorus level of the hen's diet had a marked
Denis Nugara, Hardy M. Edwards
openaire +3 more sources
Salmonella and campylobacter in organic egg production - with special reference to the Finnish situation [PDF]
, 2005 In Finland, an ongoing (2003-2005) research project on organic egg production, animal welfare and food safety is examining campylobacter and salmonella contamination of approximately 20 organic layer farms.
Hänninen, M. L.
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ANALISIS PENGGUNAAN FAKTOR PRODUKSI PADA PERUSAHAAN AYAM RAS PETELUR (STUDI KASUS PADA UD. KAKASKASEN INDAH DAN CV. NAWANUA FARM) [PDF]
, 2014 ANALYSIS OF PRODUCTION FACTOR UTILIZATION AT LAYING HEN FARMS (CASE STUDIES AT UD. KAKASKASEN INDAH AND CV. NAWANUA FARM). Laying hen farm can support the government program due to its prominence in egg productivity.
Massie, Masje T +3 more
core +2 more sources
Archaeological Prospection, EarlyView.ABSTRACT This study presents a comprehensive approach to verifying a presumed western gate at Pohansko by integrating nondestructive geophysical methods (ERT, magnetometry and core prospection) with traditional archaeological excavation. The identification and characterization of gates by nondestructive methods within early mediaeval fortified sites ...
Petr Dresler +6 more
wiley +1 more source
Poultry Science, 1935 Abstract KENTUCKY marls or calcareous clays are usually soft, calcareous-magnesian shales or soft, clay-containing magnesian limestone which breaks down on weathering into finely divided particles. In recent years marl has been used extensively because of its cheapness and easy accessibility, as a source of lime for soils.
G. Davis Buckner +2 more
openaire +2 more sources
Ethological investigation on moulting laying hens in organic farming [PDF]
, 2005 Introduction Organic egg farmers mainly rely on the same hybrids, breeding techniques and production schemes as conventional egg producers. This includes annual replacement of the laying hens.
Hirt, Helen, Zeltner, Esther
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