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Full-Text Articles in Life Sciences
Growth, Body Chemical Composition, And Tissue Deposition Rates Of Nursery Pigs Fed Crystalline Or Protein- Bound Lysine, J. J. Colina, P. S. Miller, A. J. Lewis, R. L. Fischer, R. M. Diedrichsen
Growth, Body Chemical Composition, And Tissue Deposition Rates Of Nursery Pigs Fed Crystalline Or Protein- Bound Lysine, J. J. Colina, P. S. Miller, A. J. Lewis, R. L. Fischer, R. M. Diedrichsen
Department of Animal Science: Faculty Publications
A 4-wk experiment was conducted to compare the effect of feeding crystalline lysine relative to the lysine from soybean meal (SBM) on growth performance, body chemical composition, and tissue deposition rates in nursery pigs. Thirty-six pigs were used [18 barrows and 18 gilts, 15 d old; initial BW (mean ± SEM) = 6.11 ± 0.11 kg]. Six pigs (3 barrows and 3 gilts) were killed at the beginning of the experiment and the remaining pigs were killed at the end of the experiment to determine body chemical composition and deposition rates of protein, fat, water, ash, and amino acids. Pigs …
Effects Of Genetic Type And Protein Levels On Growth Of Swine, O.W. Robison, L. L. Christian, R. Goodwin, R. K. Johnson, J. W. Mabry, R. K. Miller, M. D. Tokach
Effects Of Genetic Type And Protein Levels On Growth Of Swine, O.W. Robison, L. L. Christian, R. Goodwin, R. K. Johnson, J. W. Mabry, R. K. Miller, M. D. Tokach
Department of Animal Science: Faculty Publications
A total of 1,588 pigs representing six genetic lines were included in this study. These lines were selected to represent a wide range of biological types for appetite, rate and composition of gain, and meat quality traits. Each line was fed four different diets differing in lysine content. Barrows and gilts were used in the experiment, and pigs were randomly assigned to come off test at one of three weights (113.6, 131.8, or 150 kg). Rates of increase in weight, backfat thickness, and longissimus muscle area were essentially linear. Genetic type and diet influenced (P < .05) rates of change in weight, backfat thickness, and longissimus muscle area and 10th rib fat depth, carcass longissimus muscle area, and dressing percentage. Genetic type × diet interactions were significant for weight change and 10th rib fat. As off-test-weight class increased fat and longissimus muscle area increased in linear fashion. In general, interactions associated with diet resulted from feeding the diet lowest in lysine. There was little evidence of genetic type × diet interactions. If those interactions that tested significant are real, they are a result of extremes in both genetic type (high fatness) and lysine level (low). Slaughtering pigs at heavier weights results in no change in rate of gain over the feeding period and linear increases in longissimus muscle area and backfat thickness.
Amino Acid And Energy Interrelationships In Pigs Weighing 20 To 50 Kilograms: Weight And Efficiency Of Weight Gain, L. I. Chiba, A. J. Lewis, E. R. Peo, Jr.
Amino Acid And Energy Interrelationships In Pigs Weighing 20 To 50 Kilograms: Weight And Efficiency Of Weight Gain, L. I. Chiba, A. J. Lewis, E. R. Peo, Jr.
Department of Animal Science: Faculty Publications
The relationships between dietary amino acids and DE for pigs weighing 20 to 50 kg were investigated in two experiments
Amino Acid And Energy Interrelationships In Pigs Weighing From 20 To 50 Kilograms: Rate And Efficiency Of Protein And Fat Deposition, L. I. Chiba, A. J. Lewis, E. R. Peo, Jr.
Amino Acid And Energy Interrelationships In Pigs Weighing From 20 To 50 Kilograms: Rate And Efficiency Of Protein And Fat Deposition, L. I. Chiba, A. J. Lewis, E. R. Peo, Jr.
Department of Animal Science: Faculty Publications
Two experiments were conducted to investigate the relationships between amino acids and DE for pigs weighing 20 to 50 kg. In Exp. 1, there were three dietary lysine levels that were either adjusted (1.50, 2.35 and 3.20 g/Mcal DE) for five DE levels (3.00 to 4.00 Mcal/kg) or unadjusted (.45, .71 and .%% of the diet) for three DE levels (3.50 to 4.00 Mcal/kg). In Exp. 2, diets containing six 1ysine:DE ratios (1.90 to 3.90 g/Mcal) at two DE levels (3.25 and 3.75 Mcal/kg) were fed. Pigs were housed individuiiy, and could eat and drink ad libitum. When pigs weighed …
Influence Of Picolinic Acid On The Uptake Of Zinc-Amino Acid Complexes By The Everted Rat Gut, D. A. Hill, E. R. Peo, Jr., A. J. Lewis
Influence Of Picolinic Acid On The Uptake Of Zinc-Amino Acid Complexes By The Everted Rat Gut, D. A. Hill, E. R. Peo, Jr., A. J. Lewis
Department of Animal Science: Faculty Publications
Three hundred fifty rats were used in three experiments to: 1) validate the everted gut procedure as an in vitro technique for estimating Zn absorption, 2) determine the effect of increasing ratios of picolinic acid (PA) to Zn on Zn absorption and 3) determine the effect of PA on absorption of Zn and amino acid complexes at pH 6, 7 and 8.
Effect Of Dry, High-Moisture And Reconstituted Normal And High-Lysine Corn Diets And Particle Size On Energy And Nitrogen Metabolism In Growing Swine, G. L. Asche, J. D. Crenshaw, A. J. Lewis, E. R. Peo, Jr.
Effect Of Dry, High-Moisture And Reconstituted Normal And High-Lysine Corn Diets And Particle Size On Energy And Nitrogen Metabolism In Growing Swine, G. L. Asche, J. D. Crenshaw, A. J. Lewis, E. R. Peo, Jr.
Department of Animal Science: Faculty Publications
Two metabolism studies were conducted with 24 (Exp. 1) and 36 (Exp. 2) crossbred barrows (initial weight 35 kg) to determine the effect of corn type - normal corn (NC) and high-lysine corn (HLC) - and storage method - dry (D), high-moisture (HM) and reconstituted (RC) - on energy and N digestibility. Diets fed in Exp. 1 were: 1, NC-soybean meal formulated at .78% lysine (dry matter basis); 2, HLC-soybean meal containing the same amount of corn as diet 1 (.87% lysine); 3, HLC-soybean meal with the same lysine level as diet 1. In Exp. 1, dry matter, energy and …
The Nutritional Value Of Normal And High Lysine Corns For Weanling And Growing-Finishing Swine When Fed At Four Lysine Levels, G. L. Asche, A. J. Lewis, E. R. Peo, Jr., J. D. Crenshaw
The Nutritional Value Of Normal And High Lysine Corns For Weanling And Growing-Finishing Swine When Fed At Four Lysine Levels, G. L. Asche, A. J. Lewis, E. R. Peo, Jr., J. D. Crenshaw
Department of Animal Science: Faculty Publications
One-hundred-ninety-two weanling pigs from two separate trials, (initial weight 6.0 and 5.6 kg) and 400 growing-finishing pigs (initial weight 17 kg) were fed normal and high lysine corn diets containing four levels of lysine in a 2 • 4 factorial arrangement. Crossbred (Large White • Landrace x Duroc) pigs were used in all experiments. The objectives of the experiments were to (1) compare normal and high lysine corn when fed at different lysine levels, (2) determine the lysine requirements for the three stages of growth and (3) evaluate the effect of protein level on the lysine requirement. All diets were …
Effect Of Various Dietary Arginine: Lysine Ratios On Performance, Carcass Composition, And Plasma Amino Acid Concentrations Of Growing-Finishing Swine, L. C. Anderson, A. J. Lewis, E. R. Peo, Jr., J. D. Crenshaw
Effect Of Various Dietary Arginine: Lysine Ratios On Performance, Carcass Composition, And Plasma Amino Acid Concentrations Of Growing-Finishing Swine, L. C. Anderson, A. J. Lewis, E. R. Peo, Jr., J. D. Crenshaw
Department of Animal Science: Faculty Publications
Crossbred growing-finishing pigs (112 barrows, 48 gilts) were used to determine the effect of reducing excess dietary arginine, through feedstuff variation, on performance, carcass composition and plasma amino acid concentrations. Diets contained five, four, three or two times the NRC requirement for arginine. Lysine in all diets was formulated to be equal to NRC requirements, and all diets contained at least 100% of the NRC recommendations for all other essential amino acids.
Effects Of Excess Arginine With And Without Supplemental Lysine On Performance, Plasma Amino Acid Concentrations And Nitrogen Balance Of Young Swine, L. C. Anderson, A. J. Lewis, E. R. Peo, Jr., J. D. Crenshaw, Win Butler
Effects Of Excess Arginine With And Without Supplemental Lysine On Performance, Plasma Amino Acid Concentrations And Nitrogen Balance Of Young Swine, L. C. Anderson, A. J. Lewis, E. R. Peo, Jr., J. D. Crenshaw, Win Butler
Department of Animal Science: Faculty Publications
Three experiments were conducted to determine the effects of excess arginine on performance, plasma amino acid levels and N balance of young pigs (initial weights 6.9, 7.0 and 10.3 kg, respectively). In a 28-d growth trial, various amounts of arginine (0 to 1.6%) were added to a conventional starter diet.
Lysine Requirement Of Pigs Weighing 5 To 15 Kg Fed Practical With And Without Added Fat, A. J. Lewis, E. R. Peo, Jr., B. D. Moser, T. D. Crenshaw
Lysine Requirement Of Pigs Weighing 5 To 15 Kg Fed Practical With And Without Added Fat, A. J. Lewis, E. R. Peo, Jr., B. D. Moser, T. D. Crenshaw
Department of Animal Science: Faculty Publications
Weanling crossbred pigs (average weight 5 kg) were fed diets containing two levels of fat and six levels of lysine in a 2 • 6 factorial design to determine the lysine requirement of young pigs fed practical diets with and without added fat. The diets were based on corn and soybean meal and contained either 5% sucrose or 5% lard. Lysine levels ranged from .95% (basal) to 1.45% in .10% increments. The growth trial was 28 days long and pigs were bled at 14 and 28 days. Feed intake (ADFI), weight gain (ADG), feed efficiency (G:F) and changes in plasma …