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The Global ETD Search service is a free service for researchers
to find electronic theses and dissertations. This service is
provided by the
Networked Digital Library of Theses and Dissertations.
Our metadata is collected from universities around the world. If you manage a university/consortium/country archive and want to be added, details can be found on the NDLTD website.
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Showing 1 to 10 of 42 (0.063 seconds)Spelling suggestions: "subject:"swinebreeding."" "subject:"linebreeding.""
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Comparison of techniques for evaluation of sires and mating systems in swine.Kennedy, Brian Wayne January 1970 (has links)
No description available.
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Double mating for sire and mating system evaluation in swine.Howard, Samuel Bernard. January 1968 (has links)
No description available.
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Genetic analysis of swine production traitsRamos-Castillon, Francisco, 1949- January 1974 (has links)
No description available.
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| 4 |
Double mating for sire and mating system evaluation in swine.Howard, Samuel Bernard. January 1968 (has links)
No description available.
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| 5 |
Comparison of techniques for evaluation of sires and mating systems in swine.Kennedy, Brian Wayne January 1970 (has links)
No description available.
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| 6 |
Performance of various breeds of swine under central testing station conditions in winter and summerYu, Ju Tung. January 1962 (has links)
Call number: LD2668 .T4 1962 Y8
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Evaporative cooling of sows for the first five to seven days post breedingMunson, Maynard Dean, 1946- January 1972 (has links)
No description available.
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Comparison of crossbred and purebred boars for reproductive performance and progeny growth and carcass merit.Conlon, Peter Douglas January 1976 (has links)
No description available.
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The presence of follicular fluid in the porcine oviduct and its contribution to the acrosome reaction /Hansen, Christiane January 1989 (has links)
No description available.
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| 10 |
Factors influencing the assessment of rate and feed efficiency of growth in Yorkshire swine : the influence of energy limitations and hypoferrous anemia on pre-weaning and post-weaning growth rate, post-weaning growth rate and efficiency of feed conversionWaldern, Donald Ernest January 1954 (has links)
The present thesis is a study of the factors that affect the assessment of rate and efficiency of gain in Yorkshire swine in the pre and post-weaning stages of growth.
Calculations from metabolism data for growing swine and measurement of the milk production of Yorkshire sows were used to demonstrate the inability of a sow to produce sufficient milk (energy) for her suckling young about 12 to 20 days post-farrowing. A well balanced high energy creep ration was used in a commercial swine herd to overcome the energy debt to suckling piglets and provide for attainment of maximum growth, and hence, reduce the time required by them to reach 200 pounds.
The affect of subnormal hemoglobin levels on pre-weaning growth rates and weaning weights of suckling piglets was investigated. The need of a continuous supply of iron and energy (creep ration) for suckling piglets to produce normal hemoglobin levels and to permit them to grow at their genetic potential was demonstrated.
Energy content of gain and resting energy metabolism data were used to calculate post-weaning feed requirements of four experimental litters that were 12½ percent inbred.
The post-weaning growth studies show uniformity of litter averages for several economic characters of swine, but variations within litters were high as shown by large standard deviations.
The relationship between post-weaning rate of gain, feed efficiency and dressed carcass is discussed.
The results demonstrate the possibility of rapidly improving rate and efficiency of gain in swine if selection is based on the performance of individual animals. / Land and Food Systems, Faculty of / Graduate
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