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62 results for “feeding trials”
Faba Beans in Pig Feeding Trials
<p>Dr. Peadar Lawlor, Teagasc and John Ryan of Adesco talk to Tim O'Donovan of Seedtech about their research into feeding faba beans instead of imported protein to pigs. The video is an output of the Legumes Translated Horizon 2020 project and is available in English with subtitled in English and German. </p>
Feeding trials of Leptagrion andromache and prey species
<p>We quantified the consumption rate for one damselfly larvae predator and many of its prey. The top predator Leptagrion andromache (Zygoptera: Odonata, dry mass = 3.31 mg, se = 2.45, n = 29) was fed several densities of each prey. The prey were chosen because they were the most abundant prey in bromeliads. All prey are aquatic insect larvae. We chose Culex sp 1 (Culicidae: Diptera, density range = 1- 50, mean dry mass = 0.17 mg, se = 0.04, n = 25), Culex sp 2 (Culicidae: Diptera, 1-20, 0.09 mg, 0.02, 14), Forcipomyia (Ceratopogonidae: Diptera, 1-60, 0.07 mg, 0.01, 5), Dero superterrenus (Naididae: Haplotaxida, 1-60, 0.12 mg, 0.01, 2), Psychodidae (Psychodidae: Diptera, 1-30, 0.22 mg, 0.11, 18), Scirtes sp 1 (Scirtidae: Coleoptera, 1-30, 0.33 mg, 0.12, 13), Scirtes sp 2 (Scirtidae: Coleoptera, 1-6, 0.43 mg, 0.27, 65), and Trentepohlia (Tipulidae: Diptera, 1-7, 0.29 mg, 0.19, 43).</p>
Hubbard Brook Experimental Forest: Gastropod lichen feeding trials
Herbivory by terrestrial gastropods, particularly Arion sp., can alter lichen communities; however, little is known about this interaction in forests of North America. This data set reports the results of two feeding trials with slugs and snails from Hubbard Brook on seven lichen species. In feeding trials two common lichens, Hypogymnia physodes and Platismatia glauca, were grazed more heavily by both native and non-native slugs than other lichen species.
Biomass encounter rates limit the size scaling of feeding interactions: trial data
<p>Experimental trial data for the publication: Biomass encounter rates limit the size scaling of feeding interactions.</p>
Effect of Early Skin to Skin Contact on Breast Feeding Behaviour in Term Newborns: A Randomized Controlled Trial
ClinicalTrials.gov study NCT00776789. IPD Sharing: Not stated. Countries: 1. Publications: 1.
Effects of consumer surface sterilization on diet DNA metabarcoding data of terrestrial invertebrates in natural environments and feeding trials
Open the record for dataset details and reuse information.
Figure 3 in Trophic discrimination factors and stable isotope variability in a captive feeding trial of the southern rock lobster Jasus edwardsii (Hutton, 1875) (Decapoda: Palinuridae) in Tasmania, Australia
Figure 3. Isoplot showing the fit of different trophic discrimination factors (TDFs) to a wild population of Jasus edwardsii (■) and associated wild prey sources: Haliotis rubra (▲), Heliocidaris erythrogramma (■), and Lunella undulata (●), demonstrating that our experimentally derived TDFs provide the best fit. Black dots represent the isotope signatures of individual dorsal-muscle samples of lobsters. Mean and standard deviation values refer to the three source signatures with no TDF correction, with correction using multi-taxa TDFs from the literature (∆13C 0.4‰ and ∆15N 3.4‰ (Post, 2002)) and previously determined TDFs for J. edwardsii (∆13C 0.84‰ and ∆15N 3.28‰ (Suring & Wing, 2009)), with correction using our experimentally determined dorsal muscle TDFs (∆13C 4.45‰ and ∆15N 4.36‰), and correction with our experimentally determined leg muscle TDFs (∆13C 3.86‰ and ∆15N 5.05‰).
Figure 1 in Trophic discrimination factors and stable isotope variability in a captive feeding trial of the southern rock lobster Jasus edwardsii (Hutton, 1875) (Decapoda: Palinuridae) in Tasmania, Australia
Figure 1. Correlation plots showing the relationship between samples of captive Jasus edwardsii leg muscle and dorsal muscle (N = 34) for δ13C (A) and δ15N (B).
Figure 2 in Trophic discrimination factors and stable isotope variability in a captive feeding trial of the southern rock lobster Jasus edwardsii (Hutton, 1875) (Decapoda: Palinuridae) in Tasmania, Australia
Figure 2. Change in mean (± SE) isotopic signatures over time for captive Jasus edwardsii in three diet treatments: sea urchin (●), fish (▲), and mussel (■). Plots show change in δ13C (A) and change in δ15N (B). Solid lines represent lobster muscle tissue as represented by a leg-muscle icon, and dashed lines represent lobster exoskeleton as represented by a red-leg exoskeleton icon. Dotted lines represent the mean diet isotope + trophic discrimination factor (TDF) calculated as of 12 months. All mean values have a minimum sample size of five replicates except for the following samples: 4-month mussel (N = 4), 18-month fish (N = 4), and 18-month mussel (N = 3). For lethal samples (initial, 12, and 18 monts), exoskeleton samples are the mean of leg and dorsal samples where both were collected. Exoskeleton samples are only leg samples for non-lethal samples.
Chinook salmon digestion data within predatory largemouth bass and channel catfish through controlled feed trials
<p>Diet analysis is a vital tool for understanding trophic interactions and is frequently used to inform conservation and management. Molecular approaches can identify diet items that are impossible to distinguish using more traditional visual-based methods. Yet, our understanding of how different variables, such as predator species or prey ration size, influence molecular diet analysis is still incomplete. Here, we conducted a large feeding trial to assess the impact that ration size, predator species, and temperature had on digestion rates estimated with visual identification, qPCR, and metabarcoding. Our trial was conducted by feeding two rations of Chinook salmon (Oncorhynchus tshawytscha) to two piscivorous fish species (largemouth bass (Micropterus salmoides)) and channel catfish (Ictalurus punctatus)) held at two different temperatures (15.5°C and 18.5°C) and sacrificed at regular intervals up to 120 hours from the time of ingestion to quantify the prey contents remaining in the digestive tract. We found that ration size, temperature, and predator species all influenced digestion rate, with some indication that ration size had the largest influence. DNA based analyses were able to identify salmon smolt prey in predator gut samples for much longer than visual analysis (~12 hours for visual analysis versus ~72 hours for molecular analyses). Our study provides evidence that modeling the persistence of prey DNA in predator guts for molecular diet analyses may be feasible using a small set of controlling variables for many fish systems.</p>
Feeding Trial of Bio-fortified Pearl Millet
ClinicalTrials.gov study NCT02152150. IPD Sharing: Not stated. Countries: 1. Publications: 3.
Impacts of the 10 Steps for Healthy Feeding in Infants: a Randomized Field Trial
ClinicalTrials.gov study NCT00629629. IPD Sharing: Not stated. Countries: 1. Publications: 8.
Removal of Nasogastric Feeding Tube Post Extubation in ICU : a Prospective Randomized Trial
ClinicalTrials.gov study NCT05795569. IPD Sharing: NO. Countries: 1. Publications: 4.
First Bites: Complementary Feeding - A Global Network Cluster Randomized Controlled Trial
ClinicalTrials.gov study NCT01084109. IPD Sharing: Not stated. Countries: 4. Publications: 3.
Randomized Controlled Trial of Higher-Volume Feedings in Preterm Neonates
ClinicalTrials.gov study NCT02377050. IPD Sharing: Not stated. Countries: 1. Publications: 2.
The MULTINUTRIENT Maize Project: Results of Human Feeding Trial
ClinicalTrials.gov study NCT02373943. IPD Sharing: Not stated. Countries: 1. Publications: 5.
Lactoferrin Infant Feeding Trial - LIFT_Canada
ClinicalTrials.gov study NCT03367013. IPD Sharing: NO. Countries: 1. Publications: 7.
A Trial of Thickened Feeds to Treat Gastroesophageal Reflux in Children Admitted After Choking Spell
ClinicalTrials.gov study NCT03130543. IPD Sharing: NO. Countries: 1. Publications: 1.
Effect of Different Feeding Method on Gastrointestinal Function of Septic Patients (DFM-GF Trial)
ClinicalTrials.gov study NCT03488940. IPD Sharing: YES. Countries: 1. Publications: 3.
Trial of Patterned Oral Somatosensory Entrainment for Shortening Time to Oral Feeding
ClinicalTrials.gov study NCT01158391. IPD Sharing: Not stated. Countries: 1. Publications: 1.
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