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Animal feed amendments for lowering ammonia concentrations in animal excrement

a technology of animal excrement and ammonia concentration, which is applied in the field of animal feed and/or water amendments, can solve the problems of aggravated ammonia in cattle excrement, negative impact on animal health and production, and increased susceptibility to bacterial respiratory infection, so as to reduce gaseous ammonia concentration and high usefulness. , the effect of good

Inactive Publication Date: 2016-04-14
VERDESIAN LIFE SCI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Benefits of technology

Significantly reduces gaseous ammonia concentrations in animal containment facilities, improving animal health and production without affecting nutrient uptake or causing physical harm, as demonstrated in tests with poultry and cattle.

Problems solved by technology

Ammonia is a common by-product of animal waste due to the often inefficient conversion of feed nitrogen into animal protein.
In like manner, ruminants such as cattle are often fed non-protein nitrogen (NPN) as a part of their normal diets, and this can also exacerbate the problem of excess ammonia in cattle excrement.
Elevated levels of ammonia can have a negative impact on animal health and production, resulting in increased susceptibility to bacterial respiratory infection, decreased weight gains, and feed conversions.
However, these efforts, while marginally reducing gaseous ammonia, have not fully answered the need to significantly ameliorate the ammonia problem.

Method used

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  • Animal feed amendments for lowering ammonia concentrations in animal excrement
  • Animal feed amendments for lowering ammonia concentrations in animal excrement
  • Animal feed amendments for lowering ammonia concentrations in animal excrement

Examples

Experimental program
Comparison scheme
Effect test

example 3

Preparation of Tetrapolymer Partial Salts

[0075]A tetrapolymer partial sodium salt dispersion containing 40% by weight copolymer solids in water was prepared by the preferred free radical copolymerization synthesis of the invention, using an aqueous monomer reaction mixture having 45 mole percent maleic anhydride, 35 mole percent itaconic acid, 15 mole percent methallylsulfonate sodium salt, and 5 mole percent allylsulfonate. The final tetrapolymer dispersion had a pH of slightly below 1.0 and was a partial sodium salt owing to the sodium cation on the sulfonate monomers. At least about 90% of the monomers were copolymerized in the reaction.

[0076]This sodium partial salt tetrapolymer was used to create a series of 40% solids in water partial salts. In each instance, apart from the sodium present in the tetrapolymer mixture, appropriate bases or base precursors (e.g., carbonates), or mixtures thereof were added to the aqueous tetrapolymer at room temperature to generate the correspond...

example 4

Exemplary Synthesis

[0088]A terpolymer salt dispersion containing 70% by weight copolymer solids in water was prepared using a cylindrical reactor capable of being heated and cooled, and equipped with an efficient mechanical stirrer, a condenser, a gas outlet open to the atmosphere, respective ports for charging liquids and solids to the reactor, a thermometer, and a peroxide feeding tube.

[0089]Water (300 g) was charged into the reactor with stirring and heating to a target temperature of 95 C. During heating, itaconic acid, sodium methallylsulfonate, and maleic anhydride were added so as to make a 75% w / w solids dispersion with the following monomer mole fractions: maleic anhydride-20%; itaconic acid-60%; methallylsulfonate sodium salt-20%. When the monomers were initially added, they were in suspension in the water. As the temperature rose, the monomers became more fully dissolved before copolymerization was initiated, and the maleic anhydride was hydrolyzed to maleic acid. When th...

example 1

Poultry

[0100]Twenty broiler chickens of common variety were separated into two groups denoted “A” and “B,” with group A being the research group, and B being the control group. The chickens were placed into conventional chicken coops made of wire and wood, with typical litter on the floor trays of the coops. Heat lamps were attached to each coop at identical locations, along with a gravity-fed one-gallon water container and a gravity-fed feeder. Plastic sheeting was placed over the coops in order to trap volatilizing ammonia with open-ventilation at the front and sides of the coops. The birds had access to water and feed during all daylight hours.

[0101]During the test, both the A and B groups were fed Purina Flock Raiser premium quality poultry feed. However, feed for the group A chickens was supplemented with 0.25% (w / w) of the previously described MTM® copolymeric material, and the Group A water was also supplemented with 0.5% (v / v) of the MTM® material.

[0102]During the course of ...

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PUM

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Abstract

Improved animal feeds and / or waters are provided, which include amendments comprising one or more copolymer salts serving to reduce volatilized ammonia derived from the excrement of animals. The copolymers are preferably water soluble and have substantially equimolar amounts of maleic and itaconic moieties.

Description

CROSS-REFERENCE TO RELATED APPLICATIONS[0001]This application is a continuation of application Ser. No. 14 / 049,887 filed Oct. 9, 2013, which is a continuation-in-part of application Ser. No. 13 / 791,263 filed Mar. 8, 2013, which claims the benefit of Provisional Application Ser. No. 61 / 713,757 filed Oct. 15, 2012, and each of the foregoing applications is incorporated by reference herein in its entirety.BACKGROUND OF THE INVENTION[0002]1. Field of the Invention[0003]The present invention is broadly concerned with animal feed and / or water amendments, and corresponding methods, which are designed to reduce the amount of gaseous ammonia resulting from the decomposition of animal excrement (i.e., manure and urine). More particularly, the invention is concerned with such amendments comprising copolymer salts, e.g., maleic-itaconic copolymer salts, which can be added to animal feed and / or water. A variety of livestock animals may be treated using the invention, including poultry and mammal...

Claims

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Application Information

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Patent Type & Authority Applications(United States)
IPC IPC(8): A23K1/175A23K1/16A23K1/18
CPCA23K1/175A23K1/1609A23K1/1826A23K20/10A23K20/105A23K20/20A23K20/24A23K50/10A23K50/60A23K50/75A23K10/30A23K20/22A23K20/30A23K20/121
Inventor SANDERS, JOHN LARRY
Owner VERDESIAN LIFE SCI
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