Search Results - (Author, Cooperation:R. Hardy)
-
1Latest Papers from Table of Contents or Articles in PressQuinlan, A., OBrien, K. K., Galvin, R., Hardy, C., McDonnell, R., Joyce, D., McDowell, R. D., Aherne, E., Keogh, C., OSullivan, K., Fahey, T.
BMJ Publishing
Published 2018Staff ViewPublication Date: 2018-06-02Publisher: BMJ PublishingElectronic ISSN: 2044-6055Topics: MedicineKeywords: Open access, Evidence based practicePublished by: -
2Latest Papers from Table of Contents or Articles in PressLaura R. Hardy; Amrita Salvi; Joanna E. Burdette
Molecular Diversity Preservation International (MPDI)
Published 2018Staff ViewPublication Date: 2018-08-09Publisher: Molecular Diversity Preservation International (MPDI)Electronic ISSN: 2072-6694Topics: MedicinePublished by: -
3Latest Papers from Table of Contents or Articles in PressL. C. Houtepen; R. Hardy; J. Maddock; D. Kuh; E. L. Anderson; C. L. Relton; M. J. Suderman; L. D. Howe
Nature Publishing Group (NPG)
Published 2018Staff ViewPublication Date: 2018-12-04Publisher: Nature Publishing Group (NPG)Electronic ISSN: 2158-3188Topics: MedicinePublished by: -
4Latest Papers from Table of Contents or Articles in PressSophie Viaud, Jennifer S. Y. Ma, Ian R. Hardy, Eric N. Hampton, Brent Benish, Lance Sherwood, Vanessa Nunez, Christopher J. Ackerman, Elvira Khialeeva, Meredith Weglarz, Sung Chang Lee, Ashley K. Woods, Travis S. Young
National Academy of Sciences
Published 2018Staff ViewPublication Date: 2018-11-14Publisher: National Academy of SciencesPrint ISSN: 0027-8424Electronic ISSN: 1091-6490Topics: BiologyMedicineNatural Sciences in GeneralPublished by: -
5Latest Papers from Table of Contents or Articles in PressG. B. Ehret ; P. B. Munroe ; K. M. Rice ; M. Bochud ; A. D. Johnson ; D. I. Chasman ; A. V. Smith ; M. D. Tobin ; G. C. Verwoert ; S. J. Hwang ; V. Pihur ; P. Vollenweider ; P. F. O'Reilly ; N. Amin ; J. L. Bragg-Gresham ; A. Teumer ; N. L. Glazer ; L. Launer ; J. H. Zhao ; Y. Aulchenko ; S. Heath ; S. Sober ; A. Parsa ; J. Luan ; P. Arora ; A. Dehghan ; F. Zhang ; G. Lucas ; A. A. Hicks ; A. U. Jackson ; J. F. Peden ; T. Tanaka ; S. H. Wild ; I. Rudan ; W. Igl ; Y. Milaneschi ; A. N. Parker ; C. Fava ; J. C. Chambers ; E. R. Fox ; M. Kumari ; M. J. Go ; P. van der Harst ; W. H. Kao ; M. Sjogren ; D. G. Vinay ; M. Alexander ; Y. Tabara ; S. Shaw-Hawkins ; P. H. Whincup ; Y. Liu ; G. Shi ; J. Kuusisto ; B. Tayo ; M. Seielstad ; X. Sim ; K. D. Nguyen ; T. Lehtimaki ; G. Matullo ; Y. Wu ; T. R. Gaunt ; N. C. Onland-Moret ; M. N. Cooper ; C. G. Platou ; E. Org ; R. Hardy ; S. Dahgam ; J. Palmen ; V. Vitart ; P. S. Braund ; T. Kuznetsova ; C. S. Uiterwaal ; A. Adeyemo ; W. Palmas ; H. Campbell ; B. Ludwig ; M. Tomaszewski ; I. Tzoulaki ; N. D. Palmer ; T. Aspelund ; M. Garcia ; Y. P. Chang ; J. R. O'Connell ; N. I. Steinle ; D. E. Grobbee ; D. E. Arking ; S. L. Kardia ; A. C. Morrison ; D. Hernandez ; S. Najjar ; W. L. McArdle ; D. Hadley ; M. J. Brown ; J. M. Connell ; A. D. Hingorani ; I. N. Day ; D. A. Lawlor ; J. P. Beilby ; R. W. Lawrence ; R. Clarke ; J. C. Hopewell ; H. Ongen ; A. W. Dreisbach ; Y. Li ; J. H. Young ; J. C. Bis ; M. Kahonen ; J. Viikari ; L. S. Adair ; N. R. Lee ; M. H. Chen ; M. Olden ; C. Pattaro ; J. A. Bolton ; A. Kottgen ; S. Bergmann ; V. Mooser ; N. Chaturvedi ; T. M. Frayling ; M. Islam ; T. H. Jafar ; J. Erdmann ; S. R. Kulkarni ; S. R. Bornstein ; J. Grassler ; L. Groop ; B. F. Voight ; J. Kettunen ; P. Howard ; A. Taylor ; S. Guarrera ; F. Ricceri ; V. Emilsson ; A. Plump ; I. Barroso ; K. T. Khaw ; A. B. Weder ; S. C. Hunt ; Y. V. Sun ; R. N. Bergman ; F. S. Collins ; L. L. Bonnycastle ; L. J. Scott ; H. M. Stringham ; L. Peltonen ; M. Perola ; E. Vartiainen ; S. M. Brand ; J. A. Staessen ; T. J. Wang ; P. R. Burton ; M. Soler Artigas ; Y. Dong ; H. Snieder ; X. Wang ; H. Zhu ; K. K. Lohman ; M. E. Rudock ; S. R. Heckbert ; N. L. Smith ; K. L. Wiggins ; A. Doumatey ; D. Shriner ; G. Veldre ; M. Viigimaa ; S. Kinra ; D. Prabhakaran ; V. Tripathy ; C. D. Langefeld ; A. Rosengren ; D. S. Thelle ; A. M. Corsi ; A. Singleton ; T. Forrester ; G. Hilton ; C. A. McKenzie ; T. Salako ; N. Iwai ; Y. Kita ; T. Ogihara ; T. Ohkubo ; T. Okamura ; H. Ueshima ; S. Umemura ; S. Eyheramendy ; T. Meitinger ; H. E. Wichmann ; Y. S. Cho ; H. L. Kim ; J. Y. Lee ; J. Scott ; J. S. Sehmi ; W. Zhang ; B. Hedblad ; P. Nilsson ; G. D. Smith ; A. Wong ; N. Narisu ; A. Stancakova ; L. J. Raffel ; J. Yao ; S. Kathiresan ; C. J. O'Donnell ; S. M. Schwartz ; M. A. Ikram ; W. T. Longstreth, Jr. ; T. H. Mosley ; S. Seshadri ; N. R. Shrine ; L. V. Wain ; M. A. Morken ; A. J. Swift ; J. Laitinen ; I. Prokopenko ; P. Zitting ; J. A. Cooper ; S. E. Humphries ; J. Danesh ; A. Rasheed ; A. Goel ; A. Hamsten ; H. Watkins ; S. J. Bakker ; W. H. van Gilst ; C. S. Janipalli ; K. R. Mani ; C. S. Yajnik ; A. Hofman ; F. U. Mattace-Raso ; B. A. Oostra ; A. Demirkan ; A. Isaacs ; F. Rivadeneira ; E. G. Lakatta ; M. Orru ; A. Scuteri ; M. Ala-Korpela ; A. J. Kangas ; L. P. Lyytikainen ; P. Soininen ; T. Tukiainen ; P. Wurtz ; R. T. Ong ; M. Dorr ; H. K. Kroemer ; U. Volker ; H. Volzke ; P. Galan ; S. Hercberg ; M. Lathrop ; D. Zelenika ; P. Deloukas ; M. Mangino ; T. D. Spector ; G. Zhai ; J. F. Meschia ; M. A. Nalls ; P. Sharma ; J. Terzic ; M. V. Kumar ; M. Denniff ; E. Zukowska-Szczechowska ; L. E. Wagenknecht ; F. G. Fowkes ; F. J. Charchar ; P. E. Schwarz ; C. Hayward ; X. Guo ; C. Rotimi ; M. L. Bots ; E. Brand ; N. J. Samani ; O. Polasek ; P. J. Talmud ; F. Nyberg ; D. Kuh ; M. Laan ; K. Hveem ; L. J. Palmer ; Y. T. van der Schouw ; J. P. Casas ; K. L. Mohlke ; P. Vineis ; O. Raitakari ; S. K. Ganesh ; T. Y. Wong ; E. S. Tai ; R. S. Cooper ; M. Laakso ; D. C. Rao ; T. B. Harris ; R. W. Morris ; A. F. Dominiczak ; M. Kivimaki ; M. G. Marmot ; T. Miki ; D. Saleheen ; G. R. Chandak ; J. Coresh ; G. Navis ; V. Salomaa ; B. G. Han ; X. Zhu ; J. S. Kooner ; O. Melander ; P. M. Ridker ; S. Bandinelli ; U. B. Gyllensten ; A. F. Wright ; J. F. Wilson ; L. Ferrucci ; M. Farrall ; J. Tuomilehto ; P. P. Pramstaller ; R. Elosua ; N. Soranzo ; E. J. Sijbrands ; D. Altshuler ; R. J. Loos ; A. R. Shuldiner ; C. Gieger ; P. Meneton ; A. G. Uitterlinden ; N. J. Wareham ; V. Gudnason ; J. I. Rotter ; R. Rettig ; M. Uda ; D. P. Strachan ; J. C. Witteman ; A. L. Hartikainen ; J. S. Beckmann ; E. Boerwinkle ; R. S. Vasan ; M. Boehnke ; M. G. Larson ; M. R. Jarvelin ; B. M. Psaty ; G. R. Abecasis ; A. Chakravarti ; P. Elliott ; C. M. van Duijn ; C. Newton-Cheh ; D. Levy ; M. J. Caulfield ; T. Johnson
Nature Publishing Group (NPG)
Published 2011Staff ViewPublication Date: 2011-09-13Publisher: Nature Publishing Group (NPG)Print ISSN: 0028-0836Electronic ISSN: 1476-4687Topics: BiologyChemistry and PharmacologyMedicineNatural Sciences in GeneralPhysicsKeywords: Africa/ethnology ; Asia/ethnology ; Blood Pressure/*genetics/physiology ; Cardiovascular Diseases/*genetics ; Coronary Artery Disease/genetics ; Europe/ethnology ; Genetic Predisposition to Disease/*genetics ; Genome-Wide Association Study ; Humans ; Hypertension/genetics ; Kidney Diseases/genetics ; Polymorphism, Single Nucleotide/*genetics ; Stroke/geneticsPublished by: -
6Latest Papers from Table of Contents or Articles in PressY. Zheng ; C. Zhang ; D. R. Croucher ; M. A. Soliman ; N. St-Denis ; A. Pasculescu ; L. Taylor ; S. A. Tate ; W. R. Hardy ; K. Colwill ; A. Y. Dai ; R. Bagshaw ; J. W. Dennis ; A. C. Gingras ; R. J. Daly ; T. Pawson
Nature Publishing Group (NPG)
Published 2013Staff ViewPublication Date: 2013-07-13Publisher: Nature Publishing Group (NPG)Print ISSN: 0028-0836Electronic ISSN: 1476-4687Topics: BiologyChemistry and PharmacologyMedicineNatural Sciences in GeneralPhysicsKeywords: Animals ; Breast/cytology ; Cell Line ; Epidermal Growth Factor/*metabolism ; Epithelial Cells/cytology ; Extracellular Signal-Regulated MAP Kinases/metabolism ; Feedback, Physiological ; GRB2 Adaptor Protein/deficiency/genetics/metabolism ; Humans ; Mice ; Multiprotein Complexes/chemistry/metabolism ; Phosphorylation ; Protein Binding ; Protein-Tyrosine Kinases ; Proto-Oncogene Proteins c-akt/metabolism ; Rats ; Receptor, Epidermal Growth Factor/agonists/metabolism ; Shc Signaling Adaptor Proteins/deficiency/genetics/*metabolism ; *Signal Transduction ; Time FactorsPublished by: -
7FIS Bildung LiteraturdatenbankBoy, Jacques [Verfasser] ; Dudek, Christian [Verfasser] ; Kuschel, Sabine [Verfasser] ; Wagner, Hardy R. [Hrsg.]
Offenbach : GABAL
Published 1996Staff ViewType of Medium: bookPublication Date: 1996Keywords: Konflikt ; Planung ; Projekt ; Management ; WirtschaftLanguage: GermanNote: Disketten 1 -
8Latest Papers from Table of Contents or Articles in PressO. Cyr-Choinière, R. Daou, F. Laliberté, C. Collignon, S. Badoux, D. Le; Boeuf, J. Chang, B. J. Ramshaw, D. A. Bonn, W. N. Hardy, R. Liang, J.-Q. Yan, J.-G. Cheng, J.-S. Zhou, J. B. Goodenough, S. Pyon, T. Takayama, H. Takagi, N. Doiron-Leyraud, and Louis Taillefer
American Physical Society (APS)
Published 2018Staff ViewPublication Date: 2018-02-02Publisher: American Physical Society (APS)Print ISSN: 1098-0121Electronic ISSN: 1095-3795Topics: PhysicsKeywords: Superfluidity and superconductivityPublished by: -
9Latest Papers from Table of Contents or Articles in PressHayakawa, K., Formica, A. M., Nakao, Y., Ichikawa, D., Shinton, S. A., Brill-Dashoff, J., Smith, M. R., Morse, H. C., Hardy, R. R.
The American Association of Immunologists (AAI)
Published 2018Staff ViewPublication Date: 2018-07-10Publisher: The American Association of Immunologists (AAI)Print ISSN: 0022-1767Electronic ISSN: 1550-6606Topics: MedicinePublished by: -
10Latest Papers from Table of Contents or Articles in PressO. Cyr-Choinière, D. Le; Boeuf, S. Badoux, S. Dufour-Beauséjour, D. A. Bonn, W. N. Hardy, R. Liang, D. Graf, N. Doiron-Leyraud, and Louis Taillefer
American Physical Society (APS)
Published 2018Staff ViewPublication Date: 2018-08-31Publisher: American Physical Society (APS)Print ISSN: 1098-0121Electronic ISSN: 1095-3795Topics: PhysicsKeywords: Superfluidity and superconductivityPublished by: -
11Articles: DFG German National LicensesSwanson, D. R. ; Hardy, R. J. ; Eckhardt, C. J.
College Park, Md. : American Institute of Physics (AIP)
Published 1993Staff ViewISSN: 1089-7690Source: AIP Digital ArchiveTopics: PhysicsChemistry and PharmacologyNotes: A cross-section potential which models the interaction of two planar objects of prescribed shape is developed and used to model the interactions of amphiphiles in vertical phases of Langmuir monolayers. The results of Monte Carlo simulations of an isobaric–isothermal ensemble show qualitative agreement with experiment. The model system undergoes a continuous, bound-to-free rotator transition between phases of the same symmetries as the solid (S) and super liquid (LS) phases exhibited by fatty acid films.Type of Medium: Electronic ResourceURL: -
12Articles: DFG German National LicensesSwanson, D. R. ; Hardy, R. J. ; Eckhardt, C. J.
College Park, Md. : American Institute of Physics (AIP)
Published 1996Staff ViewISSN: 1089-7690Source: AIP Digital ArchiveTopics: PhysicsChemistry and PharmacologyNotes: Model amphiphiles consisting of lines of Lennard-Jones (LJ) centers are investigated to determine the effect of pressure and molecular geometry on ground-state tilting behavior. Both the amphiphile length and the intramolecular distance between LJ centers is varied. The results give guidelines for understanding and controlling tilting behavior in monolayer films. © 1996 American Institute of Physics.Type of Medium: Electronic ResourceURL: -
13Articles: DFG German National LicensesKuh, D. ; Langenberg, C. ; Hardy, R. ; Kok, H. ; Cooper, R. ; Butterworth, S. ; Wadsworth, M.E.J.
Oxford, UK and Malden, USA : Blackwell Science Ltd
Published 2005Staff ViewISSN: 1471-0528Source: Blackwell Publishing Journal Backfiles 1879-2005Topics: MedicineNotes: Objectives To investigate cardiovascular risk factors and changes in risk factor levels in relation to menopausal stage, hysterectomy status and hormone replacement therapy use in a cohort of women aged 53 years with prospective data on smoking, lifetime socio-economic circumstances, and blood pressure and obesity at age 43 years.Design A prospective study.Setting England, Scotland and Wales.Population A cohort of women from the Medical Research Council Survey of Health and Development.Methods A total of 1303 women, aged 53 years, from a UK birth cohort study with measures of cardiovascular risk factors were classified by five menopausal status groups (premenopause, perimenopause, postmenopause, hysterectomy and hormone replacement therapy user). Body mass index, glycosolated haemoglobin, blood pressure, high density lipoprotein, low density lipoprotein and total cholesterol measurements were taken, and analysed within the groups taking confounding variables into account. Changes in body mass index and blood pressure measurement in the same women obtained when 43 years of age were also compared.Main outcome measures Body mass index, glycosolated haemoglobin, blood pressure, high density lipoprotein, low density lipoprotein and total cholesterol.Results At 53 years, body mass index, waist circumference, total and low density lipoprotein cholesterol, and glycosolated haemoglobin (HbA1c) varied by menopausal status group, but blood pressure did not. Levels of total cholesterol and HbA1c increased across the natural menopause transition, before and after adjustment for body mass index, smoking and lifetime socio-economic circumstances. After adjustment for confounders, levels of risk factors for hysterectomised women were similar to those of naturally postmenopausal women. Women on hormone replacement therapy had lower levels of total and low density lipoprotein cholesterol, HbA1c, and were less obese than postmenopausal women. The lower obesity levels were partly due to these women already being less obese at age 43 years.Conclusions This study showed that naturally postmenopausal or hysterectomised women had higher levels of metabolic risk factors compared with premenopausal or perimenopausal women of the same age. The long term stability of these differences and their translation into variations in incidence of cardiovascular disease remain to be seen. The lower levels of metabolic risk factors for women on hormone replacement therapy may protect against future cardiovascular disease or may be overwhelmed by other adverse, and as yet unknown, effects of hormone replacement therapy.Type of Medium: Electronic ResourceURL: -
14Articles: DFG German National LicensesStaff View
ISSN: 1365-2621Source: Blackwell Publishing Journal Backfiles 1879-2005Topics: Process Engineering, Biotechnology, Nutrition TechnologyNotes: Summary. Samples of the fish species Argentina silus (Ascanius) have been studied for utilization as a food fish and also for the production of fish meal. the flesh was found very acceptable by taste panels, but because of its unsaturated oil content, rancidity would occur during long-term storage unless precautions were taken to reduce this spoilage.The lipid content and composition of this fish together with the amino acid composition has been measured. the results indicate that fish meal produced from it would be nutritious and have a relatively high oil content, if the fish was not processed as a fatty fish.Type of Medium: Electronic ResourceURL: -
15Articles: DFG German National LicensesStaff View
ISSN: 1365-2109Source: Blackwell Publishing Journal Backfiles 1879-2005Topics: Agriculture, Forestry, Horticulture, Fishery, Domestic Science, NutritionNotes: Two experiments were conducted to evaluate the effects of supplementing methionine hydroxy analogue (MHA) on the performance, body composition, and nutrition retention of rainbow trout. In experiment 1, a 2×4 factorial arrangement with two MHA supplemental levels (with and without) and four fish meal replacement levels (25%, 50%, 75%, and 100%, replaced with soybean meal (SBM) and wheat gluten) was used. A fish meal diet was included as a control. Results showed that fish meal replacement levels had significant effects on fish weight gain (WG), feed conversion ratio (FCR), body moisture, crude protein, crude fat, and ash (P〈0.05). In experiment 2, a fish meal reference diet and seven other diets were made using SBM and distiller's dried grain with solubles supplemented with 0, 0, 0.55, 1.1, 1.65, 2.2, and 2.75 g MHA kg−1 diet to replace 50% of fish meal. WG, FCR, and apparent retention of crude protein and phosphorus were significantly improved in rainbow trout fed the diet containing 1.65 g MHA kg−1 diet compared with fish fed an equivalent diet without MHA.Type of Medium: Electronic ResourceURL: -
16Articles: DFG German National LicensesStaff View
ISSN: 1365-2109Source: Blackwell Publishing Journal Backfiles 1879-2005Topics: Agriculture, Forestry, Horticulture, Fishery, Domestic Science, NutritionNotes: Two experiments were conducted to measure the apparent digestibility coefficients (ADCs) of nutrients, dry matter, and energy in by-products of the brewing industry and in selected animal protein ingredients for rainbow trout. In experiment 1, 500 rainbow trout (average body weight 170.8±5.5 g) were stocked in ten 140-L digestibility tanks with 50 fish per tank and two tanks per diet. Yttrium oxide was used as an inert marker in the diets. The high fibre content of brewer's dried grains (BDG) affected the ADCs of dry matter but not of protein or amino acids. Brewer's dried yeast had a higher protein content than BDG, but ADC values for protein and amino acids were significantly lower. The ADCs of phosphorus were similar among brewer's dried products. The BDG high-protein, fraction had marginally higher ADC values for dry matter, protein and amino acids than regular BDG. Conditions in experiment 2 were similar to those in experiment 1. ADC values for spray-dried porcine plasma were over 98% for dry matter, crude protein, crude fat, and gross energy. ADC values for spent hen meal were higher than those of poultry by-product meal or feather meal, with the exception of gross energy. However, spent hen meal was unpalatable. The ADCs in these ingredients were variable, and this variability must be taken into account when these ingredients are formulated into feeds for fish.Type of Medium: Electronic ResourceURL: -
17Articles: DFG German National LicensesKissil, G Wm ; Lupatsch, I ; Higgs, D A ; Hardy, R W
Oxford, UK : Blackwell Science Ltd
Published 2000Staff ViewISSN: 1365-2109Source: Blackwell Publishing Journal Backfiles 1879-2005Topics: Agriculture, Forestry, Horticulture, Fishery, Domestic Science, NutritionNotes: Soy and rapeseed protein concentrates (SPC and RPC) were evaluated as fish meal substitutes in gilthead seabream Sparus aurata L. diets. The protein concentrates were used to replace 30%, 60% and 100% fish meal, and effects on feed intake, weight gain and feed gain ratio were determined in a 56-day growth trial. Some groups were then grown beyond 56 days, until all reached an average weight of 50 g. A comparison of body composition at 50 g showed no significant differences in protein and ash content among all fish, while lipid and energy contents were different. The 100% RPC and 60% and 100% SPC replacement diets had lower body lipid and energy contents compared with those of the control diet. Feed intake and weight gains were inversely related to inclusion levels of plant proteins. Feed intake dropped to 52–72% of that of the control treatment and weight gain to 46–61%. Energy retention followed this same trend, decreasing from ERV values of 53 to 44 with an increase in dietary plant protein content. With the exception of 100% SPC substitution (PPV = 35), protein retention among treatments was similar (PPV = 37–39). These results suggest that both SPC and RPC may be promising protein sources for inclusion in seabream diets. The relative palatability of these plant proteins could be a limiting factor in their use.Type of Medium: Electronic ResourceURL: -
18Articles: DFG German National LicensesStaff View
ISSN: 1365-2109Source: Blackwell Publishing Journal Backfiles 1879-2005Topics: Agriculture, Forestry, Horticulture, Fishery, Domestic Science, NutritionNotes: Fish growth is manifested by a number of measurable physical changes. We have developed a sensitive method for monitoring the growth rate of fish fed at four different planes of nutrition. This technique consists in measuring expression levels of myosin RNA isolated from the muscle of experimental animals. Using PCR (polymerase chain reaction) primers, and a fluorescence-labelled single-stranded DNA probe that hybridizes specifically to a region within the myosin mRNA of rainbow trout Oncorhynchus mykiss (Walbaum), we were able to detect differences in the relative level of myosin expression between groups of fish. This method also allows for the determination of absolute expression levels when reactions are performed with standards consisting of known levels of in vitro-transcribed myosin RNA. With the proper equipment, this novel procedure can be performed rapidly on large numbers of individuals, and with the procurement of non-invasive muscle biopsies the same experimental animal could theoretically be sampled multiple times throughout the course of the study. This new method could be used to measure differences in muscle synthesis in fish associated with various nutrient intake levels, environmental parameters, life-history stages and health status.Type of Medium: Electronic ResourceURL: -
19Articles: DFG German National LicensesSugiura, S H ; Babbitt, J K ; Dong, F M ; Hardy, R W
Oxford, UK : Blackwell Science Ltd
Published 2000Staff ViewISSN: 1365-2109Source: Blackwell Publishing Journal Backfiles 1879-2005Topics: Agriculture, Forestry, Horticulture, Fishery, Domestic Science, NutritionNotes: The apparent digestibilities (availabilities) of dry matter, protein, phosphorus and selected minerals in fish and animal by-products were determined using rainbow trout Oncorhynchus mykiss (Walbaum). Blood meal (ring-dried), feather meal and deboned fish meal had relatively high concentrations of protein, low concentrations of phosphorus and many minerals, and high digestibilities (availabilities) of these nutrients. Other animal by-products, however, had high concentrations of minerals, including phosphorus, which are associated with the bone fraction. Availabilities of manganese and zinc in the diet were reduced by the inclusion of high-ash animal by-products in the diet, whereas availabilities of potassium, sodium and copper were relatively unaffected. Dietary concentrations of bone minerals (calcium, phosphorus) and ash were inversely correlated with availabilities (% of intake) of most minerals except copper in the diet. Also, dietary concentrations of bone minerals correlated inversely with the net absorption (mg g−1 diet) of zinc, manganese and magnesium in the diet. When rainbow trout were fed diets containing incremental concentrations of fish bones, the apparent availabilities of phosphorus, calcium, magnesium and iron decreased as fish bone content in the diet increased. Reducing the bone fraction of high-ash (high-phosphorus) by-product meals is therefore an essential approach to using such ingredients in low-pollution fish feeds.Type of Medium: Electronic ResourceURL: -
20Articles: DFG German National LicensesStaff View
ISSN: 1365-2109Source: Blackwell Publishing Journal Backfiles 1879-2005Topics: Agriculture, Forestry, Horticulture, Fishery, Domestic Science, NutritionNotes: The effects of feed ingredient particle size on apparent digestibility, growth and excretion responses of rainbow trout were investigated in pilot production systems. Particle size of the feed ingredients (ground using a hammer mill with 0.6 and 3.0 mm screen sizes) had no significant effect (P 〉 0.05, d.f. = 1/6) on the apparent digestibility of dry matter, phosphorus and crude protein in cold-extruded diets. Feed ingredient particle size had an impact on the feed conversion ratio over an 85-day feeding trial when key ingredients (78.65% of diet) were ground using a pulverizer and a hammer mill with 3.0 mm screen size and heat extruded. No significant differences (P 〉 0.05, d.f. = 1/12) were observed in the excretion ratios of TAN (total ammonia nitrogen), TKN (total Kjeldahl nitrogen), TP (total phosphorus), BOD5 (5-day biochemical oxygen demand) and TSS (total suspended solids) among three feed types, which included a wide ingredient particle size distribution.Type of Medium: Electronic ResourceURL: