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Article published the May 18, 2017
1. Introduction Meat-and-bone meal (MBM) is a potential source of protein, calcium and phosphorus in poultry diets for some parts of the world, including Australia, China and Southeast Asia. However, there are considerable variations in its protein quality and Ca and P concentrations. Ravindran et al. (2002) reported substantial variations in ash (13.0e56.5 g/100 g), crude protein (38.5e67.2 g/10 ...
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Article published the March 29, 2017
1. Introduction Sorghum is a problematic feed grain for chicken-meat production which has been considered in two reviews (Selle et al., 2010; Liu et al., 2015). A distinctive feature of sorghum is kafirin, the dominant protein fraction. Kafirin classically makes up 55% of sorghum protein and is present as discrete protein bodies located in the sorghum endosperm with a central core of a-kafirin en ...
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Article published the October 7, 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 August 22, 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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Participation in Forum on March 15, 2016
Hi Dr Vinh, thnak you for your comment. Full factorial design is definitely an important tool along with other statistical method we can use. if we read a classic Response Surface Methodology book, it often suggests that the first step to test an hypothesis is factorial design. this helps us to answer yes or no question. to identify the influential factors for a dependent response. Then, RSM can b ...
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Participation in Forum on March 13, 2016
Hi Swamy, thank you for your question and sorry for this late response. Most commercial programs can design and analysis response surface design. I am using R because it is free of charge and relatively more flexible to use than other packages. It is hard for beginners but it is such a valuable skill as both R and Python are booming in data science.
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Article published the February 24, 2016
1. Factorially designed  experiments versus 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 eac ...
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Article published the February 23, 2016
  1. 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 w ...
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Article published the April 17, 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 April 17, 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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Location:Sydney, New South Wales, Australia
Profile: Academic / scientific
Occupation: Animal Nutritionist
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