{"id":480,"date":"2018-08-29t14:27:33","date_gmt":"2018-08-29t14:27:33","guid":{"rendered":"https:\/\/poultry.mystagingwebsite.com\/?page_id=480"},"modified":"2020-03-20t04:08:59","modified_gmt":"2020-03-20t04:08:59","slug":"canola-in-poultry-diets","status":"publish","type":"page","link":"\/\/www.bkpromos.com\/beplayapp网页 \/feeds-and-feeding-of-poultry\/feed-ingredients-for-poultry\/oilseed-meals-in-poultry-diets\/canola-in-poultry-diets\/","title":{"rendered":"canola in poultry diets"},"content":{"rendered":"\r\n

written by<\/span><\/em><\/strong>: dr. jacquie jacob, university of kentucky<\/span><\/p>\r\n\r\n\r\n\r\n

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\"canola\r\n
canola plant and seeds (image by\u00a0amylv on shutterstock.com)<\/figcaption>\r\n<\/figure>\r\n<\/div>\r\n\r\n\r\n\r\n

canola<\/span><\/strong> is a variety of rapeseed that has an oil low in <\/span>glucosinolates<\/strong>\u00a0and that produces a meal that is low in\u00a0<\/span>eruric acid<\/strong>. the name “canola” was coined to distinguish the variety from rapeseed, though in europe canola is often referred to as “double-zero” rapeseed. canola meal is a by-product of the oil extraction process. in oil production, the majority of canola is solvent extracted. in contrast, the extraction method that yields double-pressed canola meal is mechanical, a requirement for organic feedstuffs. mechanical extraction is not as efficient as solvent extraction, so the meal produced from double-pressed canola is higher in fat\u00a0than the meal produced by solvent extraction.<\/span><\/p>\r\n\r\n\r\n\r\n

the use of canola meal has historically been limited by the meal’s low available protein and energy contents relative to the more commonly used soybean meal (sbm). the main factor affecting nutrient availability is the fibrous hull of the canola seed. the hulls are poorly digested by poultry and dilute the levels of available crude protein and energy. canola meal also contains nonstarch polysaccharides (nsps) and glucosinolates, \u00a0which reduce nutrient availability and break down into toxic aglucons. there are a number of glucosinolates, each of which breaks down into different products.<\/span><\/p>\r\n\r\n\r\n\r\n

nutrient content<\/strong><\/h2>\r\n\r\n\r\n\r\n

the crude protein content of canola meal (36% to 39%) is lower than that of sbm (44% to 48%). canola meal has a good amino acid profile. as with other vegetable protein sources, canola meal is limiting in lysine but has high levels of methionine and cystine. the digestibilities of the essential amino acids in canola meal, however, are lower than those of sbm. if these reduced digestibilities are taken into consideration, and the diets are formulated on the basis of the digestible amino acids, it is possible to include high levels of canola meal in poultry feeds.<\/span><\/p>\r\n\r\n\r\n\r\n

note that the nutrient profile of canola meal varies from country to country because of differences in oil extraction techniques.\u00a0mechanically extracted canola meal contains approximately 32% more energy than solvent extracted meal. as a result, mechanically extracted canola meal can be used in poultry diets as the sole source of protein without the need for additional fat.<\/span><\/p>\r\n\r\n\r\n\r\n

use in poultry diets<\/strong><\/h2>\r\n\r\n\r\n\r\n

the list below outlines the recommended inclusion levels of canola meal in different poultry diets:<\/span><\/p>\r\n\r\n\r\n\r\n