公开(公告)号：US3873734A

公开(公告)日：1975-03-25

申请号：US43743574

申请日：1974-01-28

Applicant: ALLIED CHEM

Inventor： HIGGINS JOHN FRANCIS ,  MCDONALD DALE RICHARD ,  HANSON MARVIN ARDELL ,  MOORE WILLIAM PERCY

IPC: A23K1/00 ,  A23K1/14 ,  A23K1/18 ,  A23K1/22 ,  C05C9/00

CPC classification number: C05C9/005 ,  A23K10/30 ,  A23K10/37 ,  A23K40/10 ,  A23K40/35 ,  A23K50/10 ,  A23K50/15 ,  Y02P60/877 ,  Y10S426/807 ,  C05F11/00 ,  C05G3/08

Abstract: An aqueous liquid feed supplement containing superphosphoric acid or ammoniated superphosphoric acid, a water-soluble sulfate and urea is admixed with a solid ruminant feedstuff containing polysaccharides, such as fresh or suncured alfalfa or corn. The mixture is then dehydrated in a rotary dryer with temperatures and retention times closely controlled to remove most of the water but not enough to destroy the valuable natural amino acids, vitamins, and other growth factors. The partially dried supplemented feed material is then made into pellets which have excellent storage properties. Moreover, the pelleted product contains 50 to 90 percent of the total nitrogen in the form of water-insoluble, slow-release nitrogen which can be fed to ruminants with a high degree of safety. The present invention thus provides a practical and economical way of utilizing urea in ruminant feeds while at the same time minimizing its toxic propensities.

Abstract translation: 将含有过磷酸或氨化过磷酸，水溶性硫酸盐和尿素的含水液体饲料添加剂与含有多糖的固体反刍动物饲料混合，所述多糖例如新鲜或日晒的苜蓿或玉米。 然后将混合物在旋转干燥器中脱水，其温度和保留时间被严格控制以除去大部分水，但不足以破坏有价值的天然氨基酸，维生素和其它生长因子。 然后将部分干燥的补充进料材料制成具有优异储存性能的颗粒。 此外，颗粒状产品含有以不溶于水，缓释氮的形式的总氮的50-90％，其可以高度安全地供给反刍动物。 因此，本发明提供了一种在反刍动物饲料中利用尿素的实用和经济的方法，同时使其毒性倾向最小化。