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Full-Text Articles in Animal Sciences

Evaluation Of Boron Supplementation In Swine And Poultry, Tyler B. Chevalier Jan 2023

Evaluation Of Boron Supplementation In Swine And Poultry, Tyler B. Chevalier

Theses and Dissertations--Animal and Food Sciences

The objectives of this dissertation were to evaluate dietary boron (B) supplementation as sodium borate in various swine models and broiler chicks through a series of experiments. The initial experiment evaluated supplemental B (0, 25, 50, and 100 ppm B) on serum insulin, glucose, and clinical chemistry panel of growing pigs. Serum insulin/glucose ratio tended to decrease linearly with increasing supplemental B in a fasting state (P = 0.08). These findings were more noticeable (linear effect, P = 0.02) in a postprandial state (~ 50 minutes following a meal). A series of follow-up studies further evaluating B supplementation (0, 5, …


The Effect Of Oil Type, Oil Quality, Vitamin E, And Phytase Supplementation On Broiler Performance, Apparent Nutrient And Energy Utilization, And The Fatty Acid Profile Of Fat And Liver In Broiler Chickens, Richard A. Adefioye Jan 2021

The Effect Of Oil Type, Oil Quality, Vitamin E, And Phytase Supplementation On Broiler Performance, Apparent Nutrient And Energy Utilization, And The Fatty Acid Profile Of Fat And Liver In Broiler Chickens, Richard A. Adefioye

Theses and Dissertations--Animal and Food Sciences

Two experiments were conducted to examine the effects of oil type, oil quality, phytase, and vitamin E (VE) supplementation in broiler chickens. Experiment 1 used 378-day-old male by-product Cobb breeder chicks with 9 treatments, 7 replicates, and 6 birds per replicate, structured as a 2x2x2+1 factorial arrangement of treatments for 14 days. The first 8 treatments were based on a marginally non-phytate phosphorus (NPP) deficient diet (0.31%), while treatment 9 was a positive control (PC) diet with adequate NPP levels (0.45%). There were 2 levels of phytase (0 vs 1000 FTU/kg), 2 levels of oil quality (fresh soy oil; peroxide …


Response Of Broiler Chickens In The Starter And Finisher Phases To 3 Sources Of Microbial Phytase, O. O. Babatunde, J. A. Jendza, P. Ader, P. Xue, Sunday A. Adedokun, O. Adeola Aug 2020

Response Of Broiler Chickens In The Starter And Finisher Phases To 3 Sources Of Microbial Phytase, O. O. Babatunde, J. A. Jendza, P. Ader, P. Xue, Sunday A. Adedokun, O. Adeola

Animal and Food Sciences Faculty Publications

A broiler chicken study was conducted for 42 D to evaluate their responses to 3 commercially available microbial phytases. Growth performance, nutrient digestibility, and bone mineralization at days 21 and 42 posthatching were used as parameters of evaluation. The study was a randomized complete block design with 12 treatments, 8 replicate pens, and 25 birds per pen. Treatments included a positive control (PC), a negative control (NC) with crude protein (CP), nonphytate phosphorus (P), and calcium (Ca) reduced by 18, 1.5, and 1.8 g/kg, respectively; the NC + 4 levels of phytase A (250, 500, 750, 1,000 FTU/kg), 3 levels …


Mechanical Backup Systems For Electronic Environmental Controllers, Richard S. Gates, Douglas G. Overhults, Larry W. Turner Jul 1992

Mechanical Backup Systems For Electronic Environmental Controllers, Richard S. Gates, Douglas G. Overhults, Larry W. Turner

Biosystems and Agricultural Engineering Faculty Publications

A series of mechanical backup systems for electronic environmental controllers is presented for a typical finishing swine barn and a typical tunnel ventilated broiler house. The systems consist of mechanical thermostats and timers used in parallel with the electronic controller, designed to ensure animal survival in the event of controller or related hardware failure. For swine housing, three distinct mechanical backup functions are identified; for broiler housing, four distinct mechanical backup functions are identified. Schematic diagrams of the mechanical backup functions are provided and their implementation is described.