Impact of dietary Calcium and Phosphorus on sow reproduction and bone development in piglets
Two experiments were conducted to determine the influence of dietary Ca and P levels in the gestation and lactation diets of high producing sows on Ca and P balance, productivity, bone turnover, and bone development in piglets. The objective of the first study was to...
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Ken Engele
Response of growing hogs to the inclusion of hybrid rye in low or high energy diets
Hybrid rye has the potential to be a cost-effective ingredient in swine diets. Several studies observed slightly reduced feed intake for pigs fed increasing hybrid rye substituting for wheat or corn, which in turn resulted in lower average daily weight gain. Typically, the growing pig...
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Ken Engele
Dietary nitrogen content affects lysine requirement and nitrogen utilization and retention in growing pigs
When dietary protein is reduced by more than 3%, non-essential amino acids or total dietary protein may become limiting for maximum nitrogen (N) retention (i.e., lean gain) and growth performance. It has been suggested that the ratio of essential amino acid-nitrogen to total nitrogen (E:T)...
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Ken Engele
Inclusion of non-protein nitrogen and lysine in grower pig diets on growth performance
Results from our previous study demonstrated that inclusion of non-protein nitrogen (NPN) in a diet with a high essential amino acid-nitrogen:total nitrogen (E:T) ratio (i.e. limiting in total nitrogen [N]) increased the Lys requirement and maximum N retention in growing pigs. A growth performance study...
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Ken Engele
Inclusion of non-protein nitrogen in grower pig diets on lysine requirement for maximum nitrogen retention
Low protein diets have improved nutrient utilization while maintaining animal performance. However, these diets may be limiting in nitrogen (N) content to meet non-essential amino acid (NEAA) requirements, potentially altering essential amino acid (EAA) utilization and requirements. Inclusion of a source of non-protein nitrogen (NPN)...
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Ken Engele
Non-essential amino acids affect nitrogen retention in pigs
Low-protein diets supplemented with essential amino acids (EAA) can improve growth and performance. However, the dietary amount of non-essential amino acids (NEAA) may be a limiting factor in these diets. This may ultimately affect the efficient utilization of the dietary EAA for maximum nitrogen (N)...
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Ken Engele
Response of growing pigs to the inclusion of hybrid rye in low or high energy diets
This experiment was designed to determine if increased dietary energy content will compensate for the reduced feed intake previously shown in pigs fed diets with hybrid rye substituting for wheat. We hypothesized that pigs fed 40% hybrid rye would perform better on the high than...
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Ken Engele
Effect of feeding time on the proportion of sows farrowing during work hours
It is sometimes necessary to provide assistance to sows and piglets during farrowing in order to improve piglet survival, resulting in increased labour costs. There is evidence in cattle and ewes that feeding at night results in an increase in the incidence of calvings during...
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Ken Engele
Ileal alkaline phosphatase is upregulated in Salmonella-challenged pigs fed functional amino acids
Functional amino acid (FAA) supplementation improves growth performance and immune status of Salmonella Typhimurium (ST)-challenged pigs, which was further improved by a longer adaptation period. It is expected that the effects are associated with increased activity of intestinal alkaline phosphatase (IAP). The objective of this...
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Ken Engele
Response to functional amino acids in plant-based nursery diets in pigs subsequently challenged with Salmonella
Functional amino acids (FAA) attenuate the effects of Salmonella challenge in pigs. However, this may be affected by protein source (PS). The objective of the present study was to determine the effects of nursery dietary PS and FAA supplementation on growth performance and immune status...
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Ken Engele