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The Global ETD Search service is a free service for researchers
to find electronic theses and dissertations. This service is
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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 11 to 20 of 42 (0.054 seconds)Spelling suggestions: "subject:"swine - breeding"" "subject:"swine - reeding""
| 11 |
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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| 12 |
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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| 13 |
Economic values and responses to selection using selection indices in swineHolzbauer, Regina. January 1998 (has links)
The objective of this study was to derive new selection indices for swine production in Quebec. First economic values were derived as change in profit per market pig for a one unit change in a trait while all other traits remain unchanged. Production figures and prices used were taken from Quebec figures. Comparing with the currently used economic values, the responses showed the same range for the sire line with a higher emphasis on age to 100 kg for the new values. The same trait, response in age to 100 kg was much smaller in the maternal line for the newly derived economic values but showed higher responses for backfat and litter size. Lean yield was found to have higher responses if used directly as a selection criterion for carcass composition instead of backfat. Feed intake was found to have unfavourable responses in the maternal line but did not change the responses for the paternal line. Including farrowing interval in the maternal line resulted in favourable responses for lean yield and litter size. Regulating the backfat level using a restricted index in the dam line had no effect on the other traits in the index.
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| 14 |
Economic values and responses to selection using selection indices in swineHolzbauer, Regina. January 1998 (has links)
No description available.
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| 15 |
Sire by mating system interaction in swine.Roache, Keith Lawton. January 1965 (has links)
"It is not surprising that in their impatience to transform the animal populations under their control, experimenters and practical husbandmen, may have consciously or unconsciously tended to minimize the fact that they were pitting their short-term efforts against a phylogenetic history extending for many generations," Lerner (1954). [...]
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| 16 |
Sire by mating system interaction in swine.Roache, Keith Lawton. January 1965 (has links)
No description available.
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| 17 |
Selection for muscling in DurocsNa-Lampang, Pongchan. January 1978 (has links)
Call number: LD2668 .T4 1978 N33 / Master of Science
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| 18 |
Reproductive function in the gilt as affected by level of feeding and treatment with altrenogestRhodes, Marlon Todd. January 1986 (has links)
Call number: LD2668 .T4 1986 R52 / Master of Science / Animal Sciences and Industry
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| 19 |
Marking spermatozoa for transport studies in double mated gilts.Mellish, Kenneth Stewart. January 1969 (has links)
No description available.
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| 20 |
The effect of varying feeding levels for thin and fat sows during gestation on muscle and adipose tissue of progenyAmdi, Charlotte January 2012 (has links)
No description available.
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