Kristin M Olsen
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View article: A comparison of the release of phosphorus by a phytase enzyme in pigs fed diets deficient or adequate in phosphorus content
A comparison of the release of phosphorus by a phytase enzyme in pigs fed diets deficient or adequate in phosphorus content Open
Previous research indicated that phytase may release less phosphorus (P) from phytate when it is evaluated using diets with P levels above requirement as compared with diets below requirement. The objectives of this experiment were to furt…
View article: 29 Influence of dietary manganese source on the corpus luteum proteome in pigs
29 Influence of dietary manganese source on the corpus luteum proteome in pigs Open
Functional corpora lutea (CL) are required for pregnancy establishment and gestational maintenance in swine. Manganese (Mn) could be critical in regulating CL function since it is a cofactor for the enzyme Mn superoxide dismutase (Mn-SOD) …
View article: Does phytase release less phosphorus than we think
Does phytase release less phosphorus than we think Open
Phytase has become a "staple" in many swine diets. We know that it releases phosphorus bound to phytate in the diet, allowing the pig to absorb and utilize more of that phosphorus. Some nutritionists even give phytase credit for energy, ca…
View article: PSVII-17 Effect of dietary digestible calcium level on growth and feed efficiency of 12 to 25 kg nursery pigs
PSVII-17 Effect of dietary digestible calcium level on growth and feed efficiency of 12 to 25 kg nursery pigs Open
An experiment was conducted to determine the optimal dietary concentration of standardized total tract digestible (STTD) Ca for growth and feed efficiency of nursery pigs. A total of 2,185 pigs (initial BW =11.2 ± 1.4 kg) were blocked acco…
View article: Evaluating phosphorus release by phytase in diets fed to growing pigs that are not deficient in phosphorus1
Evaluating phosphorus release by phytase in diets fed to growing pigs that are not deficient in phosphorus1 Open
Microbial phytase is widely used to enhance digestibility of phytate-P. By tradition, diets with P content well below requirement are used to quantify phytate-P release by phytase, but P-adequate diets may be more physiologically relevant.…
View article: The effects of group size and subtherapeutic antibiotic alternatives on growth performance and morbidity of nursery pigs: a model for feed additive evaluation1
The effects of group size and subtherapeutic antibiotic alternatives on growth performance and morbidity of nursery pigs: a model for feed additive evaluation1 Open
The objectives of this experiment were to evaluate the effects of alternatives to antibiotic growth promoters (AGP), two group sizes, and their interaction on nursery pig performance to serve as a model for future AGP alternative studies. …
View article: 284 The Effects of Group Size and Sub-Therapeutic Antibiotic Alternatives on the Performance of Nursery Piglets: A Model for Feed Additive Evaluation.
284 The Effects of Group Size and Sub-Therapeutic Antibiotic Alternatives on the Performance of Nursery Piglets: A Model for Feed Additive Evaluation. Open
The objectives were to develop guidelines for studies evaluating alternatives to sub-therapeutic antibiotic growth promoters (AGP) and to evaluate the effects of AGP alternatives in 2 group sizes on nursery pig performance. A 41-d experime…
View article: Investigating methods of evaluating swine feed additives: Phytase and alternatives to antibiotic growth promoters
Investigating methods of evaluating swine feed additives: Phytase and alternatives to antibiotic growth promoters Open
Feed additives are often included in swine diets to increase digestibility of certain nutrients, improve intestinal function, and prevent or mitigate illness, ultimately with a goal of improved productivity. Whenever additives are introduc…
View article: Designing and evaluating studies investigating non-antibiotic feed additives
Designing and evaluating studies investigating non-antibiotic feed additives Open
In recent years, consumer interest in pork raised without or with limited in-feed antibiotics and the introduction of the Veterinary Feed Directive have driven producers to look for alternatives to the use of antibiotic growth promoters (A…