{"id":1288,"date":"2013-09-10T09:00:40","date_gmt":"2013-09-10T09:00:40","guid":{"rendered":"https:\/\/www.insta-pro.com\/?p=1288"},"modified":"2019-07-12T08:17:15","modified_gmt":"2019-07-12T13:17:15","slug":"all-energy-sources-are-not-created-equal","status":"publish","type":"post","link":"https:\/\/instapro.spinuhost.com\/en\/blog\/nutritionandtechnologies\/all-energy-sources-are-not-created-equal\/","title":{"rendered":"All Energy Sources Are Not Created Equal"},"content":{"rendered":"

Energy is supplied in the diet to livestock usually by starch in cereal grains, such as corn, and by animal fats and vegetable oils, such as choice white grease or soybean oil, respectively (note: fat and oil are terms that may be used interchangeably when discussing the supply of energy in the diet).\u00a0 I recently blogged<\/a> about why this is important and challenging, and how extrusion<\/a> liberates more energy from the same unit mass of a dietary ingredient.<\/p>\n

Some data from a recent article helps to drive home this point.\u00a0 Researchers at University of Illinois performed an extensive digestibility experiment<\/a> in pigs to determine how different sources of dietary energy (oils) are utilized.\u00a0 Ileal digestibility experiments are especially useful for this purpose due to ease of interpretation \u2013 what gets fed in the diet versus what remains at the end of the small intestine<\/a> \u2013 fat and oil digestion is essentially complete at this point, and the large intestine<\/a>, which follows the small intestine, contains microbes that modify anything remaining, which distorts measurements of energy usage by the animal.\u00a0 So, without getting more involved for our purposes here, less fat remaining at the end of the small intestine means that more energy (supplied here as either corn or soybean oils) was absorbed and available for use by the pig for growth, maintenance, and health.<\/p>\n

The ingredients were used to supply corn oil or soybean oil, and consisted of the following:<\/p>\n