1.   Corn is one of the primary ingredients in most livestock feeds.

2.   Soybeans rose amid speculation about reductions in supplies of South American livestock feeds at a time of rising demand.

3.   Soybeans jumped amid speculation that a brewing El Nino weather phenomenon could reduce production of South American livestock feeds at a time of strong demand.

4.   Soybean futures could rise, bolstering corn and wheat markets, as processing rates rose, signaling strong demand for livestock feeds and vegetable oils.

5.   Purina Mills makes Chow-brand livestock feeds.

6.   In addition, demand remained strong for livestock feeds.