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Type and size as factors in economical beef productionGood, Don La Doyt January 2011 (has links)
Typescript, etc. / Digitized by Kansas State University Libraries
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Relationship between certain conformation traits of a sire and the conformation and carcass characteristics of his progenyRoss, Eugene January 2011 (has links)
Digitized by Kansas State University Libraries
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The comparative value of cottonseed meal, linseed oil meal, and corn gluten meal as a protein supplement for fattening steersConnell, W. E. (William Eugene) January 2011 (has links)
Typescript, etc. / Digitized by Kansas State University Libraries
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A beef production program for Goliad County, TexasAdams, George Washington. January 1945 (has links)
Call number: LD2668 .T4 1945 A3 / Master of Science
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Influence of environmental factors on the performance of beef steersAdepoju, Amos. January 1966 (has links)
LD2668 .T4 1966 A232 / Master of Science
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An evaluation of strategies for hedging feeder cattle in the Pacific NorthwestGatti, Andrew Leo 12 October 1984 (has links)
Over the past decade, feeder cattle backgrounders in the Pacific
Northwest have been subject to sharp price fluctuations for their
output. The result has been variable profits and losses. This
situation creates a need for management and marketing techniques
which can provide Pacific Northwest cattle ranchers with protection
against price risks while enhancing the profitability of their
operations. Recent economic literature has shown hedging with futures
contracts to be an effective tool for mitigating risk and/or
increasing the net revenues of cattle producers in a number of
regions of the United States.
The objective of this research was to determine whether hedging
with futures contracts could have increased the profitability of
Pacific Northwest feeder cattle production while decreasing the
effects of price volatiliy. To realize this objective, the economic
performance of alternative hedging strategies were evaluated for
several methods of feeder cattle backgrounding indigenous to the
Pacific Northwest region.
Four hedging strategies -- routine, moving average, profit
objective, and triangular probability distribution — were evaluated
for hedging the output of four simulated production systems. The mean
and standard deviation of annual net returns were computed for each
hedging strategy to serve as measures of profitability and risk,
respectively. The results of not hedging were also obtained to
provide a basis for comparing alternative hedging programs. Sample t
and F tests were conducted to determine whether there were
statistically significant differences between the means and standard
deviations of the unhedged and hedged positions. Dominant hedging
strategies were then identified for each production system.
Based on the results of the mean-variance analysis, it appears
that the use of selective futures market hedging strategies would
have provided greater and more stable levels of profit compared to
the net incomes obtained without hedging. Sample t and F tests, using
80 and 90 percent levels of significance respectively, showed that
hedging could have significantly decreased the variability of the
producer's flow of income without significantly changing the
operation's average profitability.
Moving average, profit objective, and triangular probability
distribution strategies were dominant, increased average
profitability, and significantly lowered risk for at least one
production system each. Overall, moving average strategies generated
the highest mean profits with the greatest risk. Profit objective
strategies generally resulted in lower mean profit than moving
average strategies but with less risk. The risks and returns from
hedging with triangular probability distribution strategies were
usually between the moving average and profit objective procedures.
Strategies which performed well in this study should also
perform well in the future if conditions in the feeder cattle markets
do not vary substantially from those of the previous decade. Thus,
hedging with futures market contracts may provide the Pacific
Northwest feeder cattle producers with protection against price risk
and enhanced profitability. / Graduation date: 1985
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Effect of prerigor pressurization on postmortem biochemical changes in beef muscleElkhalifa, Elamin Abdalla 30 June 1983 (has links)
Prerigor pressurization of bovine semimembranosus muscle at 103.5
MNm⁻² (15,000 psi) for two min at 35°C significantly decreased
(P<0.01) muscle pH, and significantly (P<0.01) increased the rate of
glycogen degradation during the first 4 hr postmortem.
Glycogen levels of pressurized muscle were significantly
(P<0.01) lower than those of the control at 1, 2 and 4 hr postmortem.
Glucose concentrations were significantly (P<0.01) higher in the
treated muscle than in the control at all sampling periods. Until 4
hr postmortem the level of glucose-6-phosphosphate was higher in
pressure-treated muscle than in the control. Lactate content
increased rapidly after pressurization (1 hr postmortem), resulting in
an immediate drop in pH; however, there was no significant difference
between control and treated muscles at 24 hr. Pressurized muscle
showed a significant (P<0.01) increase in lactate dehydrogenase
activity over that of the control muscle at 1 hr but not at 24 hr.
Pressurization accelerated catabolism of both creatine phosphate
and adenosine triphosphate which resulted in a higher ATP turnover
value than that of the control. R-values (a measure of metabolic
rate) were significantly correlated (r=-0.95) with degradation of ATP. CPK activity was significantly higher (P<0.01) in pressurized muscle
than in the control at 1 hr postmortem but not at 24 hr.
Concentrations of ATP, adenosine diphosphate (ADP), adenosine
monophosphate (AMP), inosine monophosphate (IMP), bases and
nucleosides (adenosine, adenine, inosine, hypoxanthine) and
nicotinamide adenine dinucleotide (NAD) were determined by high
pressure liquid chromatography. Pressurization completely depleted
the ATP supply and increased the IMP concentration at 1, 4 and 24 hr
postmortem. At 24 hr postmortem, control samples had more ADP whereas
the AMP concentration was higher in the pressurized samples at 1 hr
postmortem but not at 24 hr. Concentrations of bases and nucleoside
metabolites and NAD did not differ between treatments. / Graduation date: 1984
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Sex differences in bovine lipoprotein amplitude and its components during growth and development.Ochoa, Mario Fontes January 1988 (has links)
Three (intact) Angus males and three females which were half-sibs and born within 21 days of each other were selected for this study. Each animal was bled and biopsied periodically from suckling calves to mature slaughter weights, to determine the qualitative composition of lipoproteins and to differentiate the lactate lipogenic activity of subcutaneous tissue during growth and development. At slaughtered, a sample of intramuscular adipose tissue was taken to determine the lactate lipogenic activity at this location. Two days later, one side of each carcass was separated into wholesale cuts. Each wholesale cut was dissected into separable bone and soft tissue and sampled for protein, lipid and moisture determinations. The elution profiles of lipoproteins were similar for all animals. Major peaks observed were (1) very low density (VLDL), (2) low density (LDL) and (3) high density lipoproteins (HDL). Triglycerides, cholesterol and protein were not significant (P < .05) between males and females for the VLDL. At one year of age, females had large (P < .05) amounts of protein for the HDL. In both groups of cattle, largest (P > .05) amounts of protein were greater in the HDL at 9 months of age. Profiles of HDL apoproteins at all ages showed that in both groups of cattle, a distinct band with a weight of about 28,000 was present representing apo-AI. Apo-protein components of pooled LDL fractions showed a protein which was unable to enter the acrylamide gel (7.5 – 20%) used. The component may represent apo-B with a molecular weight of about 250,000. The lactate lipogenic activity of subcutaneous adipose tissue was larger in the males and only significant (P < .05) at 9 months of age. The lipogenic activity was higher (P > .05) in the subcutaneous tissue when compared to the intramuscular tissue at slaughter. In both cases, males showed to use more (P > .05) lactate for fatty acid synthesis in intramuscular and subcutaneous tissue than the females. Magnitude of quality and yield for carcass traits were better for the males than females. Bone, meat and lean weights were significantly (P < .05) greater for the males, however, on a percentage basis per side weight, differences were eliminated. In addition, no significant (P > .05) effect was present between male and female wholesale and side carcass composition.
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An evaluation of the lignin-ratio method as compared to the conventional method for determining the digestibility of a mixed ration for steersHickman, Howard Minor January 1949 (has links)
No description available.
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Methods of managing yearling steers on bluestem pastureFansher, Stanley Brown. January 1952 (has links)
Call number: LD2668 .T4 1952 F3 / Master of Science
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