Search Results - "Olkowski, A.A."

Pathophysiology of Heart Failure in Broiler Chickens: Structural, Biochemical, and Molecular Characteristics by Olkowski, A.A

“…Modern strains of fast-growing meat type poultry are highly susceptible to heart failure. Heart-related mortalities are observed predominantly in fast-growing…”
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Sub-clinical necrotic enteritis in broiler chickens: Novel etiological consideration based on ultra-structural and molecular changes in the intestinal tissue by Olkowski, A.A., Wojnarowicz, C., Chirino-Trejo, M., Laarveld, B., Sawicki, G.

“…The present study revealed several previously not recognized etiological details in the development of necrotic enteritis (NE) in broilers. We provide evidence…”
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Effects of peripartum propylene glycol supplementation on nitrogen metabolism, body composition, and gene expression for the major protein degradation pathways in skeletal muscle in dairy cows by Chibisa, G E, Gozho, G N, Van Kessel, A G, Olkowski, A A, Mutsvangwa, T

“…Early-lactating dairy cows mobilize body protein to provide amino acids that are directed toward gluconeogenesis and milk protein synthesis. Propylene glycol…”
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Changes in eggshell structure and predisposition of broilers to health problems: is there a common pathophysiology? by Olkowski, A.A, Nain, S, Laarveld, B, Wojnarowicz, C

“…A study of broiler breeder eggs differing in eggshell matrix optical density was conducted to determine the association of eggshell structural quality and the…”
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A study on pathogenesis of sudden death syndrome in broiler chickens by Olkowski, A.A., Wojnarowicz, C., Nain, S., Ling, B., Alcorn, J.M., Laarveld, B.

“…Sudden death syndrome (SDS) in fast growing broiler chickens has been recognized as a patho-physiological entity for four decades, but its pathogenesis still…”
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Responses of broiler chickens orally challenged with Clostridium perfringens isolated from field cases of necrotic enteritis by Olkowski, A.A., Wojnarowicz, C., Chirino-Trejo, M., Drew, M.D.

“…The present study examines the responses of broiler chickens to oral administration of Clostridium perfringens freshly isolated from field cases of necrotic…”
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Effects of dietary vitamin E and C supplementation on heart failure in fast growing commercial broiler chickens by Nain, S, Wojnarowicz, C, Laarveld, B, Olkowski, A.A

“…1. It has recently been shown that oxidative stress is involved in the pathogenesis of congestive heart failure (CHF) in broiler chickens. Vitamins E and C,…”
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Effect of Dietary Sinapic Acid (4-Hydroxy-3, 5-Dimethoxy-Cinnamic Acid) on Gastrointestinal Tract Microbial Fermentation, Nutrient Utilization, and Egg Quality in Laying Hens by Johnson, M.L, Dahiya, J.P, Olkowski, A.A, Classen, H.L

“…Plant-based simple phenolics are natural antimicrobial and antioxidant compounds that may possess biological activity when included in animal diets. Previous…”
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Response of turkey poults to soybean lectin levels typically encountered in commercial diets. 2. Effect on intestinal development and lymphoid organs by Fasina, Y.O, Classen, H.L, Garlich, J.D, Black, B.L, Ferket, P.R, Uni, Z, Olkowski, A.A

“…Lectins are capable of altering intestinal morphology by binding to and disrupting the intestinal brush border membrane. They are also known to alter the…”
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Vascular remodeling and its role in the pathogenesis of ascites in fast growing commercial broilers by Nain, S., Wojnarowicz, C., Laarveld, B., Olkowski, A.A.

“…This study examined the putative role of blood vessel pathology in the development of ascites in broilers. Major blood vessels (aorta, brachiocephalic…”
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Feeding high levels of lupine seeds to broiler chickens: plasma micronutrient status in the context of digesta viscosity and morphometric and ultrastructural changes in the gastrointestinal tract by Olkowski, B.I, Classen, H.L, Wojnarowicz, C, Olkowski, A.A

“…This work examines the effects of lupine-based diets on the status of the host's riboflavin and zinc. Test diets contained 35% soybean meal (control) or raw…”
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A study of electrocardiographic patterns in a population of commercial broiler chickens by Olkowski, A.A. (Saskatchewan Univ., Saskatoon, Sask. (Canada). Dept. of Animal and Poultry Science), Classen, H.L, Riddell, C, Bennett, C.D

“…A study was completed to characterize the electrocardiographic (ECG) patterns of male broiler chickens. Data were collected from 300 commercial broilers. ECG…”
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Biochemical and physiological weaknesses associated with the pathogenesis of femoral bone degeneration in broiler chickens by Olkowski, A.A, Laarveld, B, Wojnarowicz, C, Chirino-Trejo, M, Chapman, D, Wysokinski, T.W, Quaroni, L

“…Femoral bone degeneration has been recognized as an important cause of lameness in broiler chickens for many years, but the pathogenesis of this condition has…”
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Temperature gradients in trailers and changes in broiler rectal and core body temperature during winter transportation in Saskatchewan by Knezacek, T.D, Olkowski, A.A, Kettlewell, P.J, Mitchell, M.A, Classen, H.L

“…Temperature conditions inside commercial trailers transporting market-age broilers during four winter journeys were measured, and changes in the rectal and…”
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Understanding the role of sulfur–thiamine interaction in the pathogenesis of sulfur-induced polioencephalomalacia in beef cattle by Amat, S., McKinnon, J.J., Olkowski, A.A., Penner, G.B., Simko, E., Shand, P.J., Hendrick, S.

“…This study examined the role of sulfur (S) in the pathogenesis of S-induced polioencephalomalacia (PEM) in beef cattle in the context of thiamine status and…”
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The effects of thiamine and EDTA on biliary and urinary lead excretion in sheep by Olkowski, A A, Gooneratne, S R, Christensen, D A

“…Relative efficacy of thiamine (B1) and/or calcium disodium ethylinediaminetetraacetate (EDTA) administration on lead (Pb) excretion via bile and urine was…”
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The aetiology of hypoxaemia in chickens selected for rapid growth by Olkowski, A.A., Duke, T., Wojnarowicz, C.

“…In comparison to other classes of chickens, broilers selected for rapid growth tend to be hypoxaemic, and many develop congestive heart failure (CHF). In order…”
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Excessive dietary vitamin D supplementation as a risk factor for sudden death syndrome in fast growing commercial broilers by Nain, S., Laarveld, B., Wojnarowicz, C., Olkowski, A.A.

“…Broiler diets are frequently fortified with vitamin D (D 3) above the recommended levels in an attempt to prevent commonly occurring leg problems. Since the…”
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Congenital intestinal incarceration in broiler chickens by Wojnarowicz, C, Olkowski, A.A

“…The present work describes specific congenital intestinal accidents found in commercial broiler chickens where the affected individuals have their intestinal…”
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Biochemical factors limiting myocardial energy in a chicken genotype selected for rapid growth by Nain, S, Ling, B, Alcorn, J, Wojnarowicz, C M, Laarveld, B, Olkowski, A A

“…Broiler chickens (Gallus gallus) genetically selected for rapid growth are inherently predisposed to heart failure. In order to understand the biochemical…”
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