Pennisi, E (2015). "The taming of the pig took some wild turns". Science. doi: 10.1126/science.aad1692. Kongsted, A. G.; Horsted, K.; Hermansen, J. E. (2013). "Free-range pigs foraging on Jerusalem artichokes (Helianthus tuberosus L.) – Effect of feeding strategy on growth, feed conversion and animal behaviour". Acta Agriculturae Scandinavica, Section A. 63 (2): 76–83. doi: 10.1080/09064702.2013.787116. S2CID 84886946. Signs of Intelligent Life | Natural History Magazine". naturalhistorymag.com . Retrieved 3 June 2019. Strom, Stephanie (2 January 2014). "Demand Grows for Hogs That Are Raised Humanely Outdoors". The New York Times . Retrieved 15 April 2015. Nose Rings in Mini Pigs, Cruel and Ineffective, Nose Ring Alternatives -". 1 September 2016 . Retrieved 7 May 2019.

Pigs, both as live animals and a source of post-mortem tissues, are one of the most valuable animal models used in biomedical research today, because of their biological, physiological, and anatomical similarities to human beings. [104] [105] For instance, human skin is very similar to the pigskin, therefore pigskin has been used in many preclinical studies. [104] [105] Porcine [ clarification needed] are used in finding treatments, cures for diseases, xenotransplantation, [106] and for general education. They are also used in the development of medical instruments and devices, surgical techniques and instrumentation, and FDA-approved research. These animals contribute to the reduction methods for animal research, as they supply more information from fewer animals used, for a lower cost.The worst type is hay that’s rich in calcium and protein because it forms stones. Most guinea pigs, however, do well with timothy hay. If alfalfa is readily available, you can serve it with other hay types. Karlsson, Max; Sjöstedt, Evelina; Oksvold, Per; Sivertsson, Åsa; Huang, Jinrong; Álvez, María Bueno; Arif, Muhammad; Li, Xiangyu; Lin, Lin; Yu, Jiaying; Ma, Tao (25 January 2022). "Genome-wide annotation of protein-coding genes in pig". BMC Biology. 20 (1): 25. doi: 10.1186/s12915-022-01229-y. ISSN 1741-7007. PMC 8788080. PMID 35073880. Rosenberg, M; Nesbitt, R; Redding, RW; Peasnall, BL (1998). "Hallan Çemi, pig husbandry, and post-Pleistocene adaptations along the Taurus-Zagros Arc (Turkey)". Paléorient. 24 (1): 25–41. doi: 10.3406/paleo.1998.4667. S2CID 85302206. Research shows no pet should go for more than 12 to 24 hours without drinking water. But, to be on the safe side, make sure your guinea pig has enough water at all times. Unfortunately, no research has answered exactly for how long guinea pigs can go without water.

When buying partner items like this one, your contract of sale will be with our Range Plus Partner instead of us. When buying partner items like this one, your contract of sale will be with our Range Plus Partner instead of The Range.Rooting is known to also be used as a means of communication. [71] Nose rings that pierce the septum of the nose discourage rooting because they make the behavior painful. [ citation needed] Feral Hog Hunting Regulations". agfc.com. Archived from the original on 22 February 2017 . Retrieved 7 March 2017. One paper estimated that in Austria, at an intensive farming facility used to fatten up about 1800 growing pigs at a time, the already observed warming between 1981 and 2017 would have increased relative annual heat stress by between 0.9 and 6.4% per year. It is considered representative of other such facilities in Central Europe. [94] Bazer, F. W.; Vallet, J. L.; Roberts, R. M.; Sharp, D. D.; Thatcher, W. W. (1986). "Role of conceptus secretory products in establishment of pregnancy". J. Reprod. Fertil. 76 (2): 841–850. doi: 10.1530/jrf.0.0760841. PMID 3517318. CAST Scientific Assessment of the Welfare of Dry Sows kept in Individual Accommodations- March 2009