相关数据集
Mr. John's twin calves and also his baby & wife, Palos Verdes Peninsula, Los Angeles County, Calif., 1937
15 photographs of a man, in some with 2 calves, and/or his horse, his wife and their baby, Los Angeles County, California, 1937 March 7. "Client: Palos Verdes; Agency: A. E. Hanson, 9435 Wilshire; Ope
Mendeley Data2024-05-20 更新60
Effects of negative pressure and directed ducted cooling systems on the performance of lactating sows
ABSTRACT The objective of the present study was to evaluate the effects of cooling systems by negative pressure versus directed ducts on the performance of lactating sows and their litter. The experim
DataCite Commons2022-06-06 更新40
Application of nitrogen generated by grazing cattle to range land in the United States Pacific Northwest for 2002
This spatial data set was created by the U.S. Geological Survey (USGS) to represent the amount of nitrogen generated by grazing cattle that was applied to range land in the Pacific Northwest region of
DataONE2016-10-29 更新30



