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New Model For Examining The Energy Metabolism Of Laying Hens, G. Murugesan, Michael Persia
New Model For Examining The Energy Metabolism Of Laying Hens, G. Murugesan, Michael Persia
G. R. Murugesan
An experiment was conducted to evaluate the energy utilization of laying hens fed diets containing two energy concentrations, using a holistic approach includingmeasurement of productive, maintenance and storage energy. The experiment was a 2 x 2 factorial arrangementwith two feeding levels (ad libitum and restricted feeding of 90 g feed/hen-d), and two dietary energy levels (HE-high metabolizable energy or ME content of 2,880 kcal/kg; and LE-low ME content of 2,790 kcal/kg). A total of 60 HyLine W36 first-cycle laying hens were fed treatment dietsfor 12 wk from hen age 27 to 39 wk, with 15 individually housed hens for each …
Evaluation Of Energy Values Of Various Oil Sources When Fed To Broiler Chicks, G. Murugesan, Brian Kerr, Michael Persia
Evaluation Of Energy Values Of Various Oil Sources When Fed To Broiler Chicks, G. Murugesan, Brian Kerr, Michael Persia
G. R. Murugesan
The nitrogen-corrected apparent metabolizable energy (AMEn) values of seven different oil and fat sources used in broiler diets, primarily across the Midwestern US, were determined in a digestibility experiment. Fifteen days old, Ross 308 male broiler chicks were fed diets containing each oil or fat source at 0%, 3%, 6%, and 9% inclusion levels for 7 days before excreta samples were collected to analyze AMEn on day 21. The AMEn was calculated using 2 different methods, including a linear equation slope method as well as calculating the difference between basal diet and oil containing diets. The AMEn values determined by …