First, it is dark, meaning that it is not in the form of stars and planets that we see. Observations show that there is far too little visible matter in the Universe to make up the 27% required by the observations. Second, it is not in the form of dark clouds of normal matter, matter made up of particles called baryons.
Livestock[edit] The raising of livestock, sheep (the traditional mainstay for generations of Icelandic farmers) and cattle (the latter grew rapidly in the 20th century), is the main occupation, but pigs and poultry are also reared; Iceland is self-sufficient in the production of meat, dairy products and eggs.
In 1950 the Santa Gertrudis Breeders International Association was formed at Kingsville, Texas. Santa Gertrudis cattle are known the world over for their ability to adapt to harsh climates. They were exported to Australia c. 1951 and have been subjected to inspection and classification since then.his bull became the foundation sire for the breed. With the birth of Monkey and a decision to line-breed came a very uniform and very hearty breed of beef cattle. These cattle are red in color, display a blend of Bos indicus and Bos taurus attributes and may be polled or horned.