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Algal-based animal feed composition, animal feed supplement, and uses thereof

A technology of animal feed and composition, which is applied in the direction of animal feed, animal feed, and medical raw materials derived from algae, and can solve problems such as adverse effects on poultry performance

Inactive Publication Date: 2015-03-25
CORNELL UNIVERSITY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, higher levels of inclusion (20%) caused adverse effects on poultry performance (Mokady et al., "Algae Grown on Wastewater as a Source of Protein for Young Chickens and Rats," Nutr. Rep. Int. 19:383-390 (1979)), which may be attributed to the relative deficiency of the sulfur-containing amino acids methionine and cysteine ​​(Becker, W., in Handbook of Microalgal Culture: Biotechnology and Applied Phycology. Richmond, A. (editor)

Method used

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  • Algal-based animal feed composition, animal feed supplement, and uses thereof
  • Algal-based animal feed composition, animal feed supplement, and uses thereof
  • Algal-based animal feed composition, animal feed supplement, and uses thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0085] Example 1 - Microalgal Biomass Diets Supplemented with Defatted and Full Fat Diatoms Microalgal biomass can partially replace corn and soybean meal in diets of weaned piglets

[0086] Materials and methods of Example 1

[0087] Animal and Diet Handling

[0088] Animal experiments were approved by the Institutional Animal Care and Use Committee of Cornell University. All pigs were weaned hybrids (Yorkshire-Landrace-Hampshire) selected from the Cornell University swine farm. Pigs were weaned at 4 weeks of age and assigned to treatment groups based on body weight, litter and sex. Pigs were housed individually in pens (1 x 2.5m) with concrete floors in temperature-controlled barns (22-25°C) using a 12:12 hour light:dark cycle. In both experiments, pigs were fed a corn-soybean meal-based basal diet ("BD") over four days (BD1, BD2). All pigs had free access to feed and water and were monitored daily.

[0089] Preliminary trials were conducted to determine the appropriate...

experiment example 1

[0166] The main finding of Experiment 1 is that 7.5% DFA may be used to replace the same amount of corn and SBM in the diet of weaned piglets. Overall, this substitution did not affect growth performance or health status of pigs compared to those pigs fed BD1. However, either replacement of SBM alone with 7.5% DFA or the combination of maize and SBM with 15% DFA reduced ADG and G:F. The amount of SBM removed from these DFA-containing diets may exceed pig tolerance. 7.5% DFA-B reduced SBM levels by only 5.1% compared to BD1, while 7.5% DFA-A and 15% DFA reduced the levels by 7.5% and 9%, respectively. Because DFA contained only 19% crude protein, while SBM contained 47.5% crude protein, higher levels of SBM substitution may have caused protein and amino acid limitations. These limitations may partly explain the reduced growth performance.

[0167] Diatoms are the principal phytoplankton characterized by silica in the outer membrane of their cell walls (Reimann, B.F., "Deposi...

Embodiment 2

[0172] Example 2 - Defatted Diatoms for Layers: Dose-Dependent Effect of Defatted Diatom Biomass on Egg Production and Egg Quality of Layers

[0173] Materials and methods of Example 2

[0174] Animals, diet handling and management

[0175] A total of 100 ISA Babcock White Leghorn laying hens (47 weeks old, Gallus gallus domesticus) with an initial body weight of 1.57±0.20 kg were randomly assigned to 4 dietary treatments. Each treatment had 5 replicates, and each replicate consisted of a row of 5 individually housed hens in a 60-cage unit. Cages are equipped with nipple drinkers and feed troughs. The hen house was provided with 16 hours of light per day and the hens were given free access to feed and water. The experiment lasted 8 weeks. The protocol used for this study was approved by the Institutional Animal Care and Use Committee of Cornell University.

[0176] The defatted Diatom sp. microalgal biomass used to prepare the experimental diets was generated from studies...

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Abstract

The present invention relates to an animal feed composition comprising one or more grains in an amount totaling 50-70% w / w of the composition; a non-algal protein source in an amount totaling 15-30% w / w of the composition; algae in an amount totaling 3-15% w / w of the composition; an oil heterologous to the algae in an amount totaling 0.5-15% w / w of the composition; an inorganic phosphate source in an amount totaling up to 1.5% w / w of the composition; a sodium source in an amount totaling up to 0.5% w / w of the composition; and one or more amino acids selected from the group consisting of lysine, threonine, isoleucine, tryptophan, and methionine in an amount totaling up to 0.5% w / w of the composition. Also disclosed are an animal feed supplement, methods of feeding animals, methods of improving the feed efficiency of an animal, and an improvement to animal feed.

Description

[0001] This application claims U.S. Provisional Patent Application Serial No. 61 / 672,581, filed July 17, 2012, U.S. Provisional Patent Application Serial No. 61 / 714,509, filed October 16, 2012, and U.S. Provisional Patent Application Serial No. 61 / 714,509, filed May 15, 2013. The benefit of Provisional Patent Application No. 61 / 823,722, which is hereby incorporated by reference in its entirety. field of invention [0002] The present invention relates to algae-based animal feed compositions, animal feed supplements and uses thereof. Background of the invention [0003] Although fossil fuels are the primary source of energy for heating, transportation, manufacturing and electricity generation, these fuels are non-renewable. Therefore, finding renewable energy sources has become the main challenge of this century. Many species of microalgae contain large amounts of lipids suitable for the production of biofuels, especially biodiesel production (Gouveia et al., "Microalgae as ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A23K1/10A23K1/16A23K1/175A23K10/38A23K20/195
CPCA61K31/198A61K33/04A61K33/06A61K33/14A61K33/18A61K33/26A61K33/30A61K33/32A61K33/34A61K33/42A61K38/02A23K10/22A23K10/24A23K10/30A23K20/142A23K20/147A23K20/158A23K20/174A23K20/195A23K20/20A23K20/22A23K20/24A23K20/26A23K20/30A23K50/10A23K50/20A23K50/30A23K50/40A23K50/50A23K50/60A23K50/75A23K50/80A23K10/35A23K10/38Y02A40/818A61K35/12A61K35/16A61K36/02A61K36/48A61K36/899A61K45/06
Inventor X·雷
Owner CORNELL UNIVERSITY
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