Global ETD Search
Search theses and dissertations gathered from participating repositories worldwide. Every result links back to the library that holds it. No account is needed.
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Showing 1 to 20 of 20 for “"Teats"”.
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The Genetics of Functional Teats in Swine.
North Carolina State University Theses Animal Science.
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Development of teat sensing system for automated milking
… the three dimensional locations of the four teats must be known in real time. In this thesis, a multimodal vision system combining optical stereovision and thermal imaging is developed. The overall system is evaluated from the point of view of accuracy and robustness. Laboratory tests have …
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Genetic evaluation of a linear trait description
… Genetic correlations ranged from +.75 between teats and udder support to -.61 between feet and legs. Phenotypic correlations were generally smaller than genetic correlations, ranging from .56 between udder support and teats to -.23 for dairyness and strength. These findings were in general …
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Development of a short test for the identification of aggregates causing poor concrete performance when frozen
… after incorporation in concrete. Freeze-thaw teats of air-entrained concrete specimens, teats on curing period of air-entrained concrete specimens exposed to freeze-thaw cycles, and mercury-intrusion porosimeter tests of individual aggregate particles were conducted. Several parameters have …
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Genetic Parameters for Udder and Teat. Type Traits in Icelandic Cattle Breed
… on a linear scale since 1995. Udder and teats now weigh 20% in Icelandic Cattle’s total merit index, but udder balance, teat structure and teat tip are not included in breeding value estimations. The main objective of this study was to estimate genetic parameters for udder and teat type …
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Design of a robotic manipulator for automatic application of milking cups
The application of milking cups to cow teats has been identified as a significant component of net manual labour on the commercial dairy farm. Several automatic milking systems (AMS) are available commercially, however such commercial AMS have low capacity (typically 7.5 cows/unit/hr) and speed of …
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An analysis of sire-son and dam-daughter relationships for type traits in the Holstein descriptive type classification system
… udder support, 0.13; udder quality, 0.04; and teats, 0.17. When traits were expressed as 1 for desirable and 0 for undesirable, h² estimates were lower. Genetic correlations were generally positive, ranging from 1.01 ± 0,08 between final score and final classification to -0.17 ± 0.22 between …
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The Effects of Foot and Udder Scoring on Cow and Calf Performance
… pasterns, divergent toes, enlarged bottle shaped teats, and absence of a median suspensory ligament; nine indicates weak pasterns, curled toes, small symmetrical teats, and a tight udder attachment. Cows that exhibited FA and CS scores from four to six were considered acceptable. Cows that …
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The relationship between plasma oxytocic activity and intramammary pressure in lactating dairy cows
… during, and after physical stimulation to the teats and udder. It was also designed to determine the relationship between these levels and intramammary pressure. Knowledge in both these areas has been lacking up to the present. Some information in these areas was obtained as a result of this …
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A study of nucleate boiling in an accelerated system
… water at approximately atmospheric pressure. Teats were made under standard gravitational acceleration and under 2.85 times the standard gravitational acceleration. Chromel A electrical resistance wire, 0.008 inch in diameter, served as the heat transfer area. Acceleration of the system was …
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The Influence of Substructure and Dislocation Mobility on the Creep Properties of Some Single Phase Metals
… both constant load and constant strain rate teats have established that these three materials exhibit a spectrum of behaviour as wide as wide as any previously reported. Detailed microstructural examination has revealed corresponding variations in dislocation arrangements and in the extent of …
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Methods to reduce rectal temperature decline of newborn piglets and the effect of cross-fostering strategies on piglet pre-weaning growth and mortality
… litters often exceed the number of functional teats, increasing competition for teat access, and low birth weight piglets have a reduced ability to compete compared to heavier littermates. The research conducted for this thesis focused on reducing pre-weaning mortality through limiting piglet …
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Computer based methods for the prescribing of aminoglycoside antibiotics
… without recourse to non standard laboratory teats. The doses prescribed should be convenient for nurses to measure and administer. The times of administration should be suitable for the existing routine of medical or surgical wards. It was considered important that the program should have …
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Prevention of bovine mastitis
… methods were put into operation: 1). Washing of teats by hand with running water. 2). Starting milk flow. 3). The use of antiseptic creams or washes after milking. 4). Jetting of cups with water. 5). Use of antibiotics (a) into infected quarters during lactation. (b) dry cow antibiotics when cows …
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WATER BUFFALO MILK CHAIN IN BANGLADESH
… farms. An intensive buffalo-rearing system, teats on the left, funnel-shaped teats, udder asymmetry, single milker, and a lack of quarantine facility were all associated with poor buffalo udder health. The geometric mean of BMSCC was 217,000 cells per mL of milk, which was low on average, but …
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The hog situation in Dinwiddie County
… or too deep. 3. Clean sow with a clean udder and teats. 4. Clean runs and pasture that has not been used previously for hogs. 5. A disinfected hog wallow. 6. The more general use of self-feeders, creeps and a hogging off system of feeding.
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Bottle-feeding as an Infant Feeding Modality
… lacked and required information on bottles, teats, and formula, as well as the differences between these products. The main barrier for parents and nurses in obtaining bottle-feeding information was the breastfeeding culture dominant in society and health services. The main enabler was …
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Investigation of the principles of rapid soil tests for available potash and other plant nutrients of Virginia soils: III. selection, development and calibration of rapid chemical soil tests for available potassium, phosphorus, calcium and magnesium
… permit a quantitative relationship between soil teats and fertilizer recommendations.
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The small-sample power of some nonparametric tests
… and kurtosis. II. Power of Two-Sample Rank Teats on the Equality of Two Distribution Functions. A comparative study is made of the power of two-sample rank tests of the hypothesis that both samples are drawn from the same population. The general alternative is that the variables from one …
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Combining Conventional Tests and Terminal Restriction Fragment Analysis to Evaluate Microbial Quality of Raw Milk
… caused by the increased dirtiness of cow’s teats. Soil microbes are often associated with microorganisms in raw milk such as psychrotrophic bacteria, coliform groups and spore-formers. Cow’s apparent health status showed no significant influence on the microbial quality of raw milk. </p> …