{ bidder: 'appnexus', params: { placementId: '11654157' }}, {code: 'ad_btmslot_a', pubstack: { adUnitName: 'cdo_btmslot', adUnitPath: '/2863368/btmslot' }, mediaTypes: { banner: { sizes: [[300, 250], [320, 50], [300, 50]] } }, { bidder: 'pubmatic', params: { publisherId: '158679', adSlot: 'cdo_btmslot' }}]}]; In 1900, average egg production was 83 eggs per hen per year. However, there are still many diseases for which vaccines are not available and the susceptibility of Pacific salmon to bacterial kidney disease has markedly restricted the development of the culture of these fish species on the Pacific coast of North America. { bidder: 'pubmatic', params: { publisherId: '158679', adSlot: 'cdo_leftslot' }}]}, Add the power of Cambridge Dictionary to your website using our free search box widgets. { bidder: 'onemobile', params: { dcn: '8a969411017171829a5c82bb4deb000b', pos: 'cdo_rightslot2_flex' }}, { bidder: 'ix', params: { siteId: '195466', size: [728, 90] }}, agricultural pollution and climate change). In Canada, intensive animal production, like other agricultural sectors, is also subject to various other federal and provincial requirements. googletag.cmd = googletag.cmd || []; In the United States there is an attempt to regulate farms in the most realistic way possible. This causes inconsistent personal protective equipment (PPE) use, and can lead to workplace accidents and injuries. googletag.pubads().setCategoryExclusion('lcp').setCategoryExclusion('resp').setCategoryExclusion('wprod'); Intercropping has been a feature of traditional, Feed colour may affect tilapia performance, particularly in, The post World War II shift in the developed world to, There has been an ever increasing dominance of economically driven highly, Reidsma et al., 2006; Kleijn et al., 2009, Bianchi et al., 2013; Amjath-Babu and Kaechele, 2015. bidderSequence: "fixed" [3][4][5][6][7] The main products of this industry are meat, milk and eggs for human consumption. { bidder: 'ix', params: { siteId: '555365', size: [160, 600] }}, Therefore, it is possible that an animal faced with a TMR may face a level of frustration whenever it feeds, which could impact on its welfare (Rutter, 2010). 'max': 30, [17] In 1990 intensive animal farming accounted for 30% of world meat production and by 2005 this had risen to 40%. expires: 365 Barnett JL, Hemsworth PH, Cronin GM, Jongman EC, and Hutson GD. { bidder: 'appnexus', params: { placementId: '11654174' }}, ga('create', 'UA-31379-3',{cookieDomain:'dictionary.cambridge.org',siteSpeedSampleRate: 10}); { bidder: 'sovrn', params: { tagid: '705055' }}, {code: 'ad_leftslot', pubstack: { adUnitName: 'cdo_leftslot', adUnitPath: '/2863368/leftslot' }, mediaTypes: { banner: { sizes: [[120, 600], [160, 600]] } }, },{ 'max': 8, iasLog("criterion : cdo_ptl = entry-lcp"); {code: 'ad_rightslot', pubstack: { adUnitName: 'cdo_rightslot', adUnitPath: '/2863368/rightslot' }, mediaTypes: { banner: { sizes: [[300, 250]] } }, The individual feeding system also facilitates individual medication of pigs through feed. { bidder: 'ix', params: { siteId: '195466', size: [728, 90] }},

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