Comparison of growth performance and nutrient retention of weaner pigs given diets based on casein, free amino acids or conventional proteins

The British Journal of Nutrition
D I OfficerD J Farrell

Abstract

In two experiments the potential value of diets based on casein or free amino acids (FAA) for amino acid utilization experiments were examined. In Expt 1 the optimum dietary electrolyte balance (dEB) for a casein-based diet was estimated by supplemention with 10 or 20 g NaHCO3/kg, to produce diets containing 64, 183 or 302 mmol/kg. In addition, piglet growth performance and efficiency of nutrient deposition of piglets given the casein diets were compared with two multiple protein source diets; Supercreep, a commercial multiple protein source diet or CFS (casein-fish-soyabean-sugar) or a FAA-based diet. Expt 2 was designed to compare piglet response to FAA diet stored at -15 degrees with twice daily feeding, with FAA diet stored at ambient temperature (13-30 degrees) and offered ad libitum. A CFS diet was used as a positive control and the experiment was conducted over the 10-20 kg growth phase. Expt 1 used forty-eight piglets weaned at 20-22 d of age and allocated to one of six treatments formulated to contain at least 0.84 g lysine/MJ digestible energy in a randomized block design. Piglets given the CFS and Supercreep diets produced superior growth rates (518, 491 g/d) to those given a FAA diet (353 g/d) or casein diet contain...Continue Reading

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Citations

Sep 29, 2011·Molecular Genetics and Metabolism·A MacDonaldF Feillet
May 18, 2007·Nutrition·Margreet van RijnFrancjan van Spronsen
Jan 15, 2009·Journal of Animal Physiology and Animal Nutrition·J A NollesV V A M Schreurs
Nov 18, 2008·Journal of Animal Physiology and Animal Nutrition·J A NollesV V A M Schreurs
Oct 26, 2018·Nutritional Neuroscience·Penelope D Manta-VogliKleopatra H Schulpis
Oct 28, 2004·American Journal of Physiology. Endocrinology and Metabolism·Cécile BosDaniel Tomé
Dec 25, 2007·The Journal of Nutrition·Camilla HoppeKim F Michaelsen

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