A Technique to Prepare Aluminized Nanosized Energetic Composition

2002 ◽  
Author(s):  
Alexey Jigatch ◽  
Ilia Leipunsky ◽  
Michael Kuskov ◽  
Pavel Pchechenkov ◽  
Michael Larichev ◽  
...  
Keyword(s):  
Energetic Composition

scholarly journals Arctic seabirds and shrinking sea ice: egg analyses reveal the importance of ice-derived resources

2019 ◽  
Vol 9 (1) ◽  
Author(s):  
Fanny Cusset ◽  
Jérôme Fort ◽  
Mark Mallory ◽  
Birgit Braune ◽  
Philippe Massicotte ◽  
...  
Keyword(s):  
Sea Ice ◽  
Marine Species ◽  
Arctic Sea Ice ◽  
The Arctic ◽  
Sea Ice Extent ◽  
Climate Shifts ◽  
Investment In Reproduction ◽  
Ice Conditions ◽  
Arctic Seabirds ◽  
Energetic Composition

Abstract In the Arctic, sea-ice plays a central role in the functioning of marine food webs and its rapid shrinking has large effects on the biota. It is thus crucial to assess the importance of sea-ice and ice-derived resources to Arctic marine species. Here, we used a multi-biomarker approach combining Highly Branched Isoprenoids (HBIs) with δ13C and δ15N to evaluate how much Arctic seabirds rely on sea-ice derived resources during the pre-laying period, and if changes in sea-ice extent and duration affect their investment in reproduction. Eggs of thick-billed murres (Uria lomvia) and northern fulmars (Fulmarus glacialis) were collected in the Canadian Arctic during four years of highly contrasting ice conditions, and analysed for HBIs, isotopic (carbon and nitrogen) and energetic composition. Murres heavily relied on ice-associated prey, and sea-ice was beneficial for this species which produced larger and more energy-dense eggs during icier years. In contrast, fulmars did not exhibit any clear association with sympagic communities and were not impacted by changes in sea ice. Murres, like other species more constrained in their response to sea-ice variations, therefore appear more sensitive to changes and may become the losers of future climate shifts in the Arctic, unlike more resilient species such as fulmars.

scholarly journals Effect of Different Finishing Strategies and Steer Temperament on Animal Welfare and Instrumental Meat Tenderness

Animals ◽  
2021 ◽  
Vol 11 (3) ◽  
pp. 859
Author(s):  
Marcia del Campo ◽  
Xavier Manteca ◽  
Juan Manuel Soares de Lima ◽  
Gustavo Brito ◽  
Pilar Hernández ◽  
...  
Keyword(s):  
Animal Welfare ◽  
Meat Quality ◽  
Shear Force ◽  
Average Daily Gain ◽  
Live Weight ◽  
Meat Tenderness ◽  
Physiological Indicators ◽  
Lower Shear ◽  
Energetic Composition ◽  
Daily Gain

The aim of this experiment was to evaluate the effect of different fattening systems from pasture to concentrate and temperament on animal welfare (AW) and meat quality (MQ). Eighty-four Hereford steers were randomly assigned to the following groups: T1, pasture (4% of animal live weight: LW); T2, pasture (3% LW) plus concentrate (0.6% LW); T3, pasture (3% LW) plus concentrate (1.2% LW); T4, an ad libitum concentrate treatment. Temperament was assessed by three individual tests: crush score, flight time, and exit speed, building a multicriterial temperament index (TIndex). The flight zone was also registered for each treatment. AW was assessed through the integration of indicators of productivity, physiology, and behavior, as well as by monitoring the health status within each treatment. Shear force was registered for MQ. Differences in average daily gain were due to the different energetic composition of the diets (T4 > T3 > T2 > T1) and were not attributable to animal welfare problems. Animals from T4 had the higher average daily gain (ADG) but welfare was negatively affected, being evident through physiological indicators, the restriction or deprivation of relevant behaviors, diet-related diseases, and mortality. T1, T2, and T3 did not appear to compromise animal welfare. However, strict preventive measures and monitoring should be taken during the habituation process and when using any new diet that includes concentrate, because of possible dietary diseases. Shear force values were lower in T1. None of the animals in our experiment were excitable or aggressive, but there was a positive response to handling in all treatments. In addition, regardless of diet, calmer animals had higher average daily gain and lower shear force values; thus, temperament appears to have a significant influence on productivity and meat quality.

scholarly journals EQUATIONS TO PREDICT THE METABOLIZABLE ENERGY OF MEAT AND BONE MEAL FOR GROWING PIGS

2015 ◽  
Vol 39 (6) ◽  
pp. 565-573 ◽  
Author(s):  
Ricardo Araújo Castilho ◽  
Paulo Cesar Pozza ◽  
Newton Tavares Escocard de Oliveira ◽  
Cleiton Pagliari Sangali ◽  
Carolina Natali Langer ◽  
...  
Keyword(s):  
Block Design ◽  
Basal Diet ◽  
Growing Pigs ◽  
Metabolizable Energy ◽  
Good Prediction ◽  
Meat And Bone Meal ◽  
Bone Meal ◽  
Randomized Block Design ◽  
Dependent Parameter ◽  
Energetic Composition

ABSTRACT The prediction of metabolizable energy (ME) of meat and bone meal (MBM) for pigs is an interesting tool, however, used models to predict these values must be validated in order to garantee higher precision. The aim of this study was to determine the chemical and energetic composition of different types of MBM for pigs and to adjust and validate models to better predict the ME based on the chemical composition. Thirty-two barrows, averaging an initial weight of 26.75 ± 1.45 kg, were individually allotted in a randomized block design with eight treatments and four replicates. The treatments consisted of seven types of MBM that replaced 20% of the basal diet. A stepwise procedure was the statistical procedure used to adjust the prediction equations and the ME was the dependent parameter. The validation of the adjusted models was performed using an independent databank of chemical and energetic composition of theBrazilian and international MBM. The metabolizable energy of different meat and bone meals ranged from 1645 to 2645 kcal kg-1. The equations that provide a good prediction of metabolizable energy of meat and bone meal for swine in Brazil are EM1 = -4233.58 + 0.4134GE + 72CP + 89.62ash - 159.06Ca; EM2 = 2087.49 + 0.3446GE + 31.82ash - 189.18Ca; EM3 = 2140.13 + 0.3845GE - 112.33Ca; EM4 = -346.58 + 0.656GE; EM5 = 3221.27 + 178.96fat - 76.55ash; and EM6 = 5356.45 - 84.75ash.

Biochemical and energetic composition of bathyal echinoids and an asteroid, holothuroid and crinoid from the Bahamas

1990 ◽  
Vol 105 (2) ◽  
pp. 175-183 ◽  
Author(s):  
J. B. McClintock ◽  
J. L. Cameron ◽  
C. M. Young
Keyword(s):  
The Bahamas ◽  
Energetic Composition
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