Effect of an exponential feeding regime on the production ofRhodotorula araucariaeepoxide hydrolase inYarrowia lipolytica

2008 ◽  
Vol 47 (6) ◽  
pp. 520-525 ◽  
Author(s):  
D. Maharajh ◽  
R. Lalloo ◽  
J. Görgens
Keyword(s):  
Feeding Regime ◽  
Exponential Feeding

scholarly journals Video surveillance methods to evaluate individual feeding response in rainbow trout (Oncorhynchus mykiss, Walbaum)—implications for feeding regime optimisation

2021 ◽  
Author(s):  
Philip Niclas Just ◽  
Bernd Köllner ◽  
Matthew James Slater
Keyword(s):  
Rainbow Trout ◽  
Oncorhynchus Mykiss ◽  
Video Surveillance ◽  
Average Weight ◽  
Short Term ◽  
Feeding Regime ◽  
Daily Feeding ◽  
Juvenile Rainbow Trout ◽  
Feeding Regimes ◽  
The Impact

AbstractPrecisely analysing and optimising feeding regimes is central to salmonid growth performance and delivery of special diets. The current study developed novel video surveillance methods and analysis techniques to assess individual feed intake and minimum pellet intake (MPI) in individually identified juvenile rainbow trout, Oncorhynchus mykiss. Three trials were conducted to test the impact of short-term starvation (N=112 [16 tanks, 7 fish per tank], average weight=27.1±3.4g, age= 119 days), portion numbers per feeding (N=105 [15 tanks, 7 fish per tank], average weight=22.8±2.1g, age= 99 days) and varied numbers of daily feeding events (N=84 [12 tanks, 7 fish per tank], average weight=32.4±3.3g, age= 133 days). All trails were carried out in a recirculating aquaculture system with 20 tanks held at 15 ± 0.5°C. All individuals were code-tagged and high quality video images were taken and analysed to identify all feeding interactions. Individual trout feeding activity under different feeding regimes could be precisely analysed with the video methods developed. Moving from one to two daily feeding events doubled pellet intake per fish from 27.4 ± 5.8 to 52.8 ± 11.5 pellets. Pellet intake (58.8 ± 24.2 pellets) did not increase at three daily feeding events but became more variable across fish. MPI nearly doubled to 30 pellets in fish receiving two daily feeding events (MPI30: chi-squared = 8.74, df = 2, p = 0.01). Short-term starvation had no influence on intake (28 ± 8 pellets/fish) or MPI. Increasing portion number from one (27.8 ± 7.4 pellets fish−1) to two (31.1 ± 7.4 pellets fish−1) or more did not significantly increase the number of ingested pellets. Adjusting the feeding regime by increasing daily feeding events to two, possibly combined with multiple portions, can increase pellet intake and reduce the heteroscedasticity of pellet intake. The methods presented in this study are viable for analysing feeding regimes for juvenile rainbow trout and controlled feedstock/supplement delivery. Implications for analyses with other species and for vaccination optimisation are discussed.

Feeding regime does not influence lysine utilisation by Atlantic salmon, Salmo salar L., parr

Aquaculture ◽  
2007 ◽  
Vol 273 (4) ◽  
pp. 545-555 ◽  
Author(s):  
Rhys C. Hauler ◽  
Chris G. Carter ◽  
Stephen J. Edwards
Keyword(s):  
Atlantic Salmon ◽  
Salmo Salar ◽  
Feeding Regime ◽  
Atlantic Salmon Salmo Salar

A note on purebred performance of Belgian Piétrain pigs

1977 ◽  
Vol 25 (2) ◽  
pp. 255-258 ◽  
Author(s):  
A. N. Howard ◽  
W. C. Smith
Keyword(s):  
Cross Section ◽  
Litter Size ◽  
Live Weight ◽  
Muscle Quality ◽  
Feed Conversion ◽  
Feeding Regime ◽  
Weight Range ◽  
Breed Difference ◽  
Ad Libitum ◽  
Size At Birth

SUMMARYIn an analysis of data from 211 litters in a Pietrain herd, litter size at birth and at weaning was lower than is generally found in indigenous breeds. Mortality in growing and breeding pigs was high with circulatory failure accounting for 23% and 95% of deaths respectively. Pietrains, fed ad libitum over the live-weight range 27 to 87 kg, grew more slowly by 130 g/day than contemporary Large Whites on the same feeding regime, had higher killing-out percentages (by 3 to 4 units) and larger eye muscles in cross-section (by 9·9 cm2) but tended to have higher feed conversion ratios. There was no breed difference in backfat measurements but Pietrain carcasses were shorter by 83 mm and their muscle quality was markedly inferior to that of the Large Whites.

scholarly journals The spread of weeds into sensitive areas by seeds in horse faeces

2000 ◽  
Vol 71 (3) ◽  
Author(s):  
E. Van Dyk ◽  
S. Neser
Keyword(s):  
Retention Time ◽  
Digestive System ◽  
Sea Water ◽  
Feeding Regime ◽  
Sensitive Areas

The possible spread by horse faeces of plants that may become weeds in sensitive areas was investigated. It was found that the period 24-48 hours after ingestion of seeds included in rations was the retention time for seeds passing through the digestive system of the horse. The ability of seeds to germinate was not influenced by exposure to digestive fluids or sea-water. A feeding regime of compound feeds is suggested.

The effect of feeding regime and the provision of a foraging substrate on the development of behaviours in group-housed sows

1994 ◽  
Vol 40 (1) ◽  
pp. 72 ◽  
Author(s):  
J.A. Burbidge ◽  
H.A.M. Spoolder ◽  
A.B. Lawrence ◽  
P.H. Simmins ◽  
S.A. Edwards
Keyword(s):  
Feeding Regime ◽  
Effect Of Feeding

Purine derivatives in spot urine samples and plasma of sheep: a possible index of microbial protein supply

1993 ◽  
Vol 1993 ◽  
pp. 5-5 ◽  
Author(s):  
X. B. Chen ◽  
Adriana T. Mejia ◽  
D. J. Kyle ◽  
E. R. Ørskov
Keyword(s):  
Urinary Excretion ◽  
Feed Intake ◽  
Urine Samples ◽  
Plasma Samples ◽  
Microbial Protein ◽  
Purine Derivatives ◽  
Feeding Regime ◽  
Spot Urine ◽  
Alternative Index ◽  
Protein Supply

In ruminants, daily urinary excretion of purine derivatives (PD) reflects the absorption of microbial purines and can be used as an index of microbial protein supply (Chen, Ørskov and Hovell, 1991). The application could be extended to farm conditions if measurements based on spot urine samples or plasma could serve as an alternative index. The objective of this study was to examine whether PD concentrations in spot urine or plasma samples vary diurnally during a given feeding regime and if they reflect differences in daily PD excretion induced by varying feed intake.

scholarly journals The Cyclic Feeding Regime Induces Decaying Age-Dependent Oxidative Stress and Regulates the Cell Chain of the Immunity

2016 ◽  
Vol 05 (06) ◽  
pp. 151-165
Author(s):  
Anatoly I. Bozhkov ◽  
Yuriy V. Nikitchenko ◽  
Katerina N. Lebed’ ◽  
Olena S. Linkevych ◽  
Natalia I. Kurguzova ◽  
...  
Keyword(s):  
Oxidative Stress ◽  
Feeding Regime ◽  
Age Dependent ◽  
Cyclic Feeding

scholarly journals Relationship of Seed Sowing Methods and Feeding Regimen With the Development of Cotton Root

2021 ◽  
Vol 9 (12) ◽  
pp. 1189-1192
Author(s):  
Jalilov Lutfiyor Sotvoldievich
Keyword(s):  
Root System ◽  
Rapid Growth ◽  
Early Growth ◽  
Main Root ◽  
Feeding Regime ◽  
Planting Methods ◽  
Cotton Root ◽  
Feeding Regimen ◽  
Relationship Of ◽  
Different Levels

Annotation: According to the obtained 3-year data, changes in planting methods and feeding regime of the "Sultan" variety lead to rapid growth of the root system, early growth of the main root and different levels of (orderly) roots, better absorption activity, 35-38 cm of biomass. Allows to increase by 1.5-1.8 times.

scholarly journals Growth rates and morphological measurements of Porcupine caribou calves

Rangifer ◽  
1989 ◽  
Vol 9 (1) ◽  
pp. 9 ◽  
Author(s):  
Katherine L. Parker
Keyword(s):  
Surface Area ◽  
Growth Rates ◽  
Rangifer Tarandus ◽  
Type I ◽  
Feeding Regime ◽  
Barren Ground ◽  
Body Weights ◽  
In The Wild

<p>Body weights, leg lengths, and surface area were monitored for bottle-raised barren-ground caribou calves (Rangifer tarandus granti) from the Porcupine herd up to 1 year of age. Body weights were compared with maternally-raised calves from the same cohort in the wild and from the Delta herd. A successful feeding regime for bottle-raising caribou calves is presented.</p><p>Veksthastigheter og morfologiske m&aring;l hos Porcupine karibu-kalver.</p><p>Abstract in Norwegian / Sammendrag: Kroppsvekter, visse knokkel-lengder og kropps-overflate areal ble m&aring;lt hos flaske-oppf&oslash;dde kalver av barren-ground karibu (Rangifer tarandus granti) fra Porcupine-stammen opp til 1 &aring;rs alder. Kroppsvekter ble sammelignet med normalt oppf&oslash;dde kalver av samme type i det fri og fra Delta-stam-men. Det presenteres et vellykket system for flaske-oppforing av karibu-kalver.</p><p>Porcupine-lauman karibuvasojen kasvunopeus ja morfologiset mitat.</p><p>Abstract in Finnish / Yhteenveto: Porcupine -lauman pulloruokinnalla olleiden tundrakaribuvasojen ruumiinpainot, jalanpituu-det ja ruumiin pinta-alat mitattiin 1 vuoden ik&auml;&auml;&auml;n saakka. Ruumiinpainoja verrattiin vastaaviin luonnon-oloissa kasvaneisiin saman lauman ja Delta -lauman vasoihin. Tutkimus kuvaa toimivan vasojen pulloruo-kintamenetelm&auml;n.</p>

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