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Article published the 18 from November from 2016
1. Introduction The occurrence of ‘wet litter’ in meat chicken sheds is associated with concerns regarding animal welfare, flock health, food safety, environmental impacts and reductions in production efficiency. Mitigating wet litter will only be achieved when there is thorough understanding of the multidimensional causal factors. This will require a multidisciplinary approach to un ...
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Article published the 7 from October from 2016
1. Introduction Primarily for the provision of energy density, grain sorghum is quite frequently included in rations for pigs, poultry and feed-lot cattle. However, in a recent meeting held by the Australian Feed Grain Partnership in December 2012, nutritionists from the three industries expressed concern about the efficiency of energy utilisation in animals offered sorghum-based diets. Essentia ...
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Article published the 22 from August from 2016
1. Introduction At times, sorghum provides, either partially or entirely, the feed grain base in Australian pig and poultry diets but it has been associated with sub-optimal or inconsistent growth performance in broiler chickens (Selle et al., 2010a; Liu et al., 2015a). A beneficial characteristic for including sorghum in broiler diets is as a source of energy, which is mainly derived from starc ...
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Article published the 17 from April from 2015
I. INTRODUCTION Sorghum is used, either partially or entirely, as the cereal grain base in Australian pig and poultry diets but it has been associated with sub-optimal broiler growth performance (Selle et al., 2010, Liu et al., 2013). Cereal grains of different varieties and from different locations may be blended into poultry diets but varying the inclusion rate of one feed ingredient will spon ...
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Article published the 17 from April from 2015
I. INTRODUCTION Phytase supplementation of broiler diets is a routine practice and is used primarily to liberate the P component (282 g/kg) of the phytate molecule (myo-inositol hexaphosphate; IP6). Phytase also generates ‘extra-phosphoric’ responses because phytate interacts with protein, starch, fat, calcium and trace minerals but these responses are less well understood and accep ...
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Article published the 17 from April from 2015
I. INTRODUCTION That a mounting array of synthetic amino acids will be incorporated into broiler diets to increasing extents would appear to be an entirely reasonable prediction. The caveat is that predictions are fraught with difficulty; particularly when they concern the future. However, nearly 50 years ago, Beames et al. (1968) made the following prognostication: “It is probable that th ...
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Article published the 17 from April from 2015
I. FACTORIALLY DESIGNED EXPERIMENTS VS RESPONSE SURFACE METHODOLOGY A conventional experimental approach investigates the effects of one independent variable while keeping all other variables constant. This approach faces two challenges (i) it is only valid when the underlying principles linking cause and effect are known with some certainty; (ii) variables may interact with each other and the ma ...
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Article published the 16 from June from 2013
I. INTRODUCTION The role of Se in poultry nutrition has been reviewed extensively (Surai, 2002a,b). Selenium is involved in the control of several physiological functions such as growth and immunocompetence. Se, as a constituent of selenoproteins, has structural and enzymatic roles, which impact on the antioxidant status and thyroid secretion of the bird (Sevcikova et al,. 2006). Also, Se is a c ...
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Article published the 31 from May from 2013
I. INTRODUCTION The present study is an extension of an earlier experiment (Selle et al., 2012) which investigated the shortcomings of the grain sorghum as a feedstuff for poultry. One reason for the inferiority of sorghum relative to wheat proposed by Black et al. (2005) was a lack of synchrony in starch and protein digestion. The gastrointestinal tract has a substantial energy demand (Cant et a ...
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Article published the 31 from May from 2013
I. INTRODUCTION The effects of protease supplementation on nitrogen (N) and starch digestibility in four small intestinal sites of broilers offered sorghum-based diets were determined in an earlier study (Selle et al., 2012). Protease significantly increased N digestibility in the distal jejunum (0.538 vs. 0.627), proximal ileum (0.727 vs. 0.770) and distal ileum (0.719 vs. 0.770). Moreover, pro ...
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Information
Dr. Peter Selle, BVSc PhD MRCVS is Adjunct Associate Professor in Poultry Nutrition at the University of Sydney. His research interests are related to dietary phytate and exogenous phytase in pig and poultry nutrition and grain sorghum as a feedstuff for monogastrics.
Location:Sydney, New South Wales, Australia
Profile: Academic / scientific
Occupation: Adjunct Associate Professor
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