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Article published the October 20, 2020
1. Introduction Heat stress (HS) has undesired effects on the growth performance [1,2] and meat quality [3] of broiler chickens. During HS, chickens seek to dissipate unwanted and excess body heat by increasing panting, resulting in alteration of blood acid/base status, which in turn can give rise to respiratory alkalosis [4] and disruptions in muscle membrane integrity [3]. Additionally, the wor ...
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Article published the November 18, 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 March 8, 2015
I. INTRODUCTION Calcium (Ca) and phosphorus (P) are essential minerals for many biological processes and skeletal health, however, they have a complex interactive relationship. Phytate is the naturally occurring storage form of P in plants, with the main storage site of phytate-P being seeds (Tamim et al., 2004). As poultry diets are comprised mainly of seed based ingredients, there is a conside ...
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Article published the November 4, 2014
BACKGROUND Calcium (Ca) is an essential nutrient for poultry that is generally provided to laying hens at approximately 4.6% of the total feed volume.  Calcium is usually supplied to layers as a calcite grit or flour i.e. limestone (CaCO3) and also as part of the inorganic phosphorus (P) supplye.g. dicalcium or monocalcium phosphate.  Though, in some markets, meat and bone meal may also ...
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Article published the June 20, 2014
I. INTRODUCTION Calcium (Ca) is an essential nutrient for poultry for biological processes such as bone development and egg shell formation (De Vries et al., 2010). Laying hens must be provided with Ca at approximately 4% of the total feed volume. Very little Ca is provided within the cereal grain component of the diet, therefore diets must be supplemented with sources of Ca. Dietary Ca is provi ...
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Article published the June 4, 2013
I. INTRODUCTION Limestone is composed primarily of CaCO3 and is commonly used as a source of calcium (Ca) in poultry diets. Pure CaCO3 has a molecular weight of approximately 100g/mole and so is around 400 g/kg Ca. However, CaCO3 sources used in animal feeding are typically only 370-380 g/kg Ca, sometimes less, due to the presence of other minerals such as Mg or Fe. Furthermore, the bioavailabili ...
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Article published the June 4, 2013
I. INTRODUCTION The relationship between calcium (Ca) and phosphorus (P) in broiler nutrition is one that is complex and multifactorial. The digestion and absorption of these minerals is influenced by other dietary vitamins and enzymes as well as endogenous hormones. The modern broiler has a high requirement for Ca and P for energy metabolism and skeletal development. Deficiencies in Ca, P or bot ...
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Article published the June 3, 2013
I. INTRODUCTION Calcium (Ca) and phosphorus (P) requirements of poultry have been investigated extensively over the past 50 years. However, the interactions of these two macrominerals are highly complex and are not easily interpreted. The majority of published animal nutritional research is based either on altering a single food property at a time or where multiple factors are changed. While thes ...
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This member gave a presentation on December 12, 2012
At the following event:
International Phytase Summit 2012
This member gave a presentation on December 11, 2012
At the following event:
International Phytase Summit 2012
equalizer Statistics: Articles(10)
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Location:Bondi, New South Wales, Australia
Profile: Academic / scientific
Occupation: Research
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