Zobrazeno 1 - 10
of 155
pro vyhledávání: '"Henry L. Classen"'
Autor:
Namalika D. Karunaratne, Henry L. Classen, Andrew G. van Kessel, Michael R. Bedford, Nancy P. Ames, Rex W. Newkirk
Publikováno v:
Animal Nutrition, Vol 15, Iss , Pp 288-296 (2023)
Exogenous enzymes as alternatives to feed antibiotics in poultry has become an emerging research area with the emergence of antibiotic resistance. The objective was to evaluate the effects of diet medication (antibiotics) and β-glucanase (BGase) on
Externí odkaz:
https://doaj.org/article/dcf9203af93a43f3b9f3994484eb03e4
Autor:
Namalika D. Karunaratne, Rex W. Newkirk, Nancy P. Ames, Andrew G. Van Kessel, Michael R. Bedford, Henry L. Classen
Publikováno v:
Animal Nutrition, Vol 7, Iss 3, Pp 595-608 (2021)
Exogenous β-glucanase (BGase) in barley-based feed has been shown to reduce digesta viscosity in chickens, and thereby improve performance. Less well studied is the potential for BGase to convert barley β-glucan into low molecular weight carbohydra
Externí odkaz:
https://doaj.org/article/bc6b92bd62234c8f9dbb8177465122d1
Autor:
Namalika D. Karunaratne, Rex W. Newkirk, Andrew G. van Kessel, Michael R. Bedford, Henry L. Classen
Publikováno v:
Poultry Science, Vol 100, Iss 2, Pp 776-787 (2021)
Diet β-glucanase (BGase) depolymerizes viscous β-glucan into lower molecular weight carbohydrates, which might act as a prebiotic in chickens exposed to enteric disease. Coccidiosis-challenged broiler chickens were fed graded levels of hulless barl
Externí odkaz:
https://doaj.org/article/d1355aa8c03d409aa260de7b1dfcbd2d
Publikováno v:
Poultry Science, Vol 101, Iss 5, Pp 101735- (2022)
ABSTRACT: Exogenous β-glucanase (BGase) improves nutrient digestibility and production performance in laying hens fed barley-based diets, but the effect of enzyme and the dosage on β-glucan depolymerization and fermentation in the gastrointestinal
Externí odkaz:
https://doaj.org/article/827897143c69470c8f4fcd24993a9ea3
Effect of protein sources on performance characteristics of turkeys in the first three weeks of life
Publikováno v:
Animal Nutrition, Vol 5, Iss 4, Pp 396-406 (2019)
The effect of nutrition during the early life of turkey poults has a long-lasting impact on bird performance. This study assessed the digestibility of 5 high protein feed ingredients (soybean meal [SBM], corn gluten meal [CGM], canola protein concent
Externí odkaz:
https://doaj.org/article/48350f2b3a2f4765b97fe9ea5668dee4
Publikováno v:
Animal Nutrition, Vol 4, Iss 4, Pp 401-409 (2018)
It is difficult to obtain in vivo digestion kinetics data of high protein ingredients using chickens. Collecting kinetics data requires repeated sampling of digesta from the small intestine during the digestion process, which is not easily accomplish
Externí odkaz:
https://doaj.org/article/a23747fcccbd41ad8286b8aa8347efeb
Publikováno v:
Poultry Science, Vol 100, Iss 3, Pp 100967- (2021)
The reduced use of antibiotics in poultry feed has led to the investigation of alternatives to antibiotics, and one such substitution is fermentable carbohydrates. Exogenous β-glucanase (BGase) is commonly used in poultry fed barley-based diets to r
Externí odkaz:
https://doaj.org/article/284ae919b24d468886f7ce699c208b57
Autor:
Dervan D.S.L. Bryan, Henry L. Classen
Publikováno v:
Animals, Vol 10, Iss 4, p 551 (2020)
Protein quality assessment of feed ingredients for poultry is often achieved using in vitro or in vivo testing. In vivo methods can be expensive and time consuming. Protein quality can also be evaluated using less expensive and time consuming chemica
Externí odkaz:
https://doaj.org/article/0d3d61e7d20f4600950a024beed799fa
Publikováno v:
Animals, Vol 9, Iss 11, p 938 (2019)
Myo-inositol (inositol) affects memory, and the incidence of depression and anxiety in mammals. An experiment was designed to determine if pure inositol (0.16%), or high levels of phytase (3000 FTU/kg) affect the behaviour of fully beaked Lohmann LSL
Externí odkaz:
https://doaj.org/article/772dc3c0d3524e4f8ccff2cf320523ee
Publikováno v:
Animals, Vol 6, Iss 5, p 27 (2016)
Daylength used as a management tool has powerful implications on the welfare of both broilers and turkeys. Near-constant light results in many detrimental impacts, including lack of behavioural rhythms and circadian melatonin rhythms. Both are sugges
Externí odkaz:
https://doaj.org/article/1a18b982248044008d1f112a479d8424