Breeding


Andersson, L.; Moller, M.J.; Wales, R.; Siggens, K.W.; Plastow, G.S. (2001). Methods for determining the coat color genotype of a pig. Official Gazette of the United States Patent and Trademark Office Patents 1243 (1): No Pagination, ISSN: 0098-1133.

NAL Call No.: T223 A21.

Keywords: breeding, coat color genotype, KIT gene, I and IP alleles, determination method.


Beja, P.A., Bento, P., Ferrand, N., Brenig, B. (2001). Genetic polymorphism of the 17th exon at porcine RYR1 locus: A new variant in a local Portuguese pig breed demonstrated by SSCP analysis. Journal of Animal Breeding and Genetics 118 (4): 271-274, ISSN: 0931-2668.

NAL Call No.: 442.8 Z35.

Keywords: malignant hyperthermia, recessive autosomal disorder, local pig breeds, rare breeds, Bisaro, out crossing, controlled breeding, restriction fragment length polymorphism analysis, analytical method, single strand conformational polymorphism analysis, Portugal, Alentejano, Bisaro.


Chang, H.; Mimachiren, Li, X.Y.; Ren, Z.J.; Dongwang, Dejiyangzhong, Chang, G.B. (2001). Linzhi Native Pig: An investigation report on new genetic resource of livestock. Asian Australasian Journal of Animal Sciences 14 (9): 1203-1208, ISSN: 1011-2367.

NAL Call No.: SF55.A78A7.

Keywords: breed, local breed, Linzhi Native Pig, biogenetic techniques, genetic resource, contour features, size, weight, reproductive performances, carcass characters, meat quality, fresh keeping features, geological distribution, Tibet, China.


Chen, P.; Baas, T.J.; Dekkers, J.C.; Christian, L.L. (2001). Selection for lean growth rate and correlated responses in litter traits in a synthetic line of Yorkshire Meishan pigs. Canadian Journal of Animal Science 81 (2): 205-214, ISSN: 0008-3984.

NAL Call No.: 41.8 C163.

Keywords: breed, Yorkshire Meishan, longissimus muscle, backfat thickness, lean growth rate, litter weight, selection response, survival.


Ciobanu, D.C.; Day, A.E.; Nagy, A.; Wales, R.; Rothschild, M.F.; Plastow, G.S. (2001). Genetic variation in two conserved local Romanian pig breeds using type 1 DNA markers. Genetics Selection Evolution Paris 33 (4): 417-432, ISSN: 0999-193X.

Keywords: genetic variation, endangered population, conservation, local Romanian pig breeds, Bazna, Red Mangalitsa, type 1 DNA markers, coat color, disease resistance, genetic variation, growth, meat quality, prolificacy, Romania.


Costa, L.N.; Fiego, D.P.L.; Dall, O.S.; Davoli, R.; Russo, V. (2002). Combined effects of pre-slaughter treatments and lairage time on carcass and meat quality in pigs of different halothane genotype. Meat Science 61 (1): 41-47, ISSN: 0309-1740.

NAL Call No.: TX373.M4.

Keywords: breed, Italian, heavy meat hogs, pre-slaughter treatment, stocking density, skin damage, fighting, carcass quality, evaluation, halothane, genotype, lairage time, meat quality.


Emmans, G.; Kyriazakis, I. (2001). Consequences of genetic change in farm animals on food intake and feeding behaviour. Proceedings of the Nutrition Society 60 (1): 115-125, ISSN: 0029-6651.

NAL Call No.: 389.9 N953.

Abstract: Selection in commercial populations on aspects of output, such as for growth rate in poultry, against fatness and for growth rate in pigs, and for milk yield in cows, has had very large effects on such outputs over the past 50 years. Partly because of the cost of recording intake, there has been little or no selection for food intake or feeding behaviour. In order to predict the effects of such past, and future, selection on intake it is necessary to have some suitable theoretical framework. Intake needs to be predicted in order to make rational feeding and environmental decisions. The idea that an animal will eat 'to meet its requirements' has proved useful and continues to be fruitful. An important part of the idea is that the animal (genotype) can be described in a way that is sufficient for the accurate prediction of its outputs over time. Such keywords can be combined with a set of nutritional constants to calculate requirements. There appears to have been no change in the nutritional constants under selection for output. Under such selection it is simplest to assume that changes in intake follow from the changes in output rates, so that intake changes become entirely predictable. It is suggested that other ways that have been proposed for predicting intake cannot be successful in predicting the effects of selection. Feeding behaviour is seen as being the means that the animal uses to attain its intake rather than being the means by which that intake can be predicted. Thus, the organisation of feeding behaviour can be used to predict neither intake nor the effects of selection on it.

Keywords: livestock, feeding behavior, feeding, selection program, feed intake, prediction, genotype nutrition interaction, performance, nutrient requirements, energy requirements, efficiency, growth, lactation, body fat, animal production, literature reviews.


Fabrega, E.; Diestre, A.; Carrion, D.; Font, J.; Manteca, X. (2002). Effect of the halothane gene on pre-slaughter mortality in two Spanish commercial pig abattoirs. Animal Welfare 11(4): 449-452, ISSN: 0962-7286.

NAL Call No.: HV4701.A557.

Keywords: animal welfare, halothane gene, lairage, preslaughter, mortality rate, transport, quality.


Fabrega, E.; Manteca, X.; Font, J.; Gispert, M.; Carrion, D.; Velarde, A.; Ruiz-de-la-Torre, J.L.; Diestre, A. (2002). Effects of halothane gene and pre-slaughter treatment on meat quality and welfare from two pig crosses. Meat Science 62(4): 463-472, ISSN: 0309-1740.

NAL Call No.: TX373.M4.

Keywords: breed, Pietrain, Large White x Pietrain, gilts, halothane genotype, pre-slaughter, meat quality, animal welfare, carcass quality, stress susceptibility, growth performance, feed withdrawal, muscle quality, pork quality, lean growth, genotype, transport, sensitivity.


Fukawa, K.; Sugiyama, T.; Kusuhara, S.; Kudoh, O.; Kameyama, K. (2001). Model selection and genetic parameter estimation for performance traits, body measurement traits and leg score traits in a closed population of Duroc pigs. Animal Science Journal 72 (2): 97-106, ISSN: 1344-3941.

NAL Call No.: SF1 A542.

Keywords: breed, Duroc, growth rate, body weight, back fat depth, eye muscle area, leg score traits, sex differences, closed population, genetic parameter estimation, model selection, performance traits.


Gregory, S.A.; Friend, T.H.; Piedrahitab, J.; Nevilla, C.H.; Walker, S. (2003). Behavioral variation among cloned pigs. Applied Animal Behaviour Science 81(4): 321-331, ISSN: 0168-1591.

NAL Call No.: QL750.A6.

Keywords: genetics, clone, behavior, variation, resting, play, food preferences.


Hamilton, D.N.; Ellis, M.; Wolter, B.F.; McKeith, F.K.; Wilson, E.R. (2003). Carcass and meat quality characteristics of the progeny of two swine sire lines reared under differing environmental conditions. Meat Science 63 (2): 257-263, ISSN: 0309-1740.

NAL Call No.: TX373.M4.

Keywords: barrow, breed, Duroc, Landrace, Large White, Pietrain, gilt, sire lines, longissimus muscle, slaughter, production method, carcass quality, crowded environment, dressing percentage, environmental conditions, genetic differences, pork meat, drip loss, marbling fat content, meat product, pH, paleness, quality, softness, progeny, rearing environment, spacious environment.


Hamilton, D.N.; Wolter, B.F.; Beverly, J.L.; Wilson, E.R; Augspurger, N.R.; Ellis, M. (2002). The effect of sire line on the feeding patterns of grow-finish pigs. Applied Animal Behaviour Science 75 (2):103-114, ISSN: 0168-1591.

NAL Call No.: QL750.A6.

Keywords: gilts, Large White, Landrace, Duroc and Pietrain, breeds, sires, genetic lines, line differences, body weight, feed conversion efficiency, feed intake, number of feeder visits, feeder occupation, growth rate, lines, liveweight gain, longissimus dorsi, feeding.


Hanenberg, E.H.; Knol, E.F.; Merks, J.W. (2001). Estimates of genetic parameters for reproduction traits at different parities in Dutch Landrace pigs. Livestock Production Science 69 (2): 179-186, ISSN: 0301-6226.

NAL Call No.: SF1.L5.

Keywords: sows, breed, Dutch Landrace, genetic parameters, reproduction traits, farrowing after first insemination, mothering ability, still born piglets, number of piglets born, interval from weaning to first insemination, gestation length, age at first insemination, parity number.


Henryon, M.; Berg, P.; Jensen, J.; Andersen, S. (2001). Genetic variation for resistance to clinical and subclinical diseases exists in growing pigs. Animal Science: an International Journal of Fundamental and Applied Research 73 (3): 375-387. ISSN: 1357-7298.

NAL Call No.: SF1 A56.

Keywords: selective breeding, breeding value, disease resistance, genetic variation, heritability diarrhea, digestive system disease, lameness, bone disease, muscle disease, respiratory diseases.


Kahn, J. (2001). Food production and biotechnology. In: Concepts in Pig Science, Lyons, T.P.; Cole, D.J.A. (Eds.), Nottingham University Press: Nottingham, UK, pp.33-37, ISBN: 1-897676-33-6.

NAL Call No.: SF391.3.C66.

Keywords: biotechnology, consumer attitudes, consumer behaviour, consumer education, economic impact, environmental impact, food production, food products, food safety, risk factors, transgenics.


Kennes, Y.M.; Murphy, B.D.; Pothier, F.; Palin, M.F. (2001). Characterization of swine leptin (LEP) polymorphisms and their association with production traits. Animal Genetics 32 (4): 215-218, ISSN: 0268-9146.

NAL Call No.: QP98 A1A5.

Keywords: breed, Yorkshire, Landrace, Duroc, polymorphisms, swine leptin gene, production traits in pigs.


Kmiec, M.; Dybus, A.; Terman, A. (2001). Prolactin receptor gene polymorphism and its association with litter size in Polish Landrace. Archiv fuer Tierzucht 44 (5): 547-551, ISSN: 0003-9438.

NAL Call No.: 49 AR23.

Keywords: boars, sows, Polish Landrace, breed, prolactin receptor gene, gene marker, reproductive traits, total number of teats, number of piglets in first litter, age at first parity.


Knol, E.F.; Ducro, B.J.; Van Arendonk, J.A.M.; Van der Lende, T. (2002). Direct, maternal and nurse sow genetic effects on farrowing, pre-weaning and total piglet survival. Livestock Production Science 73 (2-3): 153-164, ISSN: 0301-6226.

NAL Call No.: SF1.L5.

Keywords: genetic effects, combination models, mathematical method, birth weight, cross foster information, genetic effects, direct maternal, mothering ability, survival, farrowing, pre weaning, survival characteristics, heritability.


Korwin, K.A.; Pierzchala, M.; Cymerowska, P.I.; Szydlowski, M.; Kuryl, J.; Zurkowski, M.; Kamyczek, M.; Janik, A. (2001). The Polish “Pig Genome Mapping” project. XIII. Identification of quantitative trait loci affecting carcass fat deposition. Animal Science Papers and Reports 19 (1): 27-42, ISSN: 0860-4037.

NAL Call No.: SF1 P67.

Keywords: boars, sows, breed, Zlotnicka Spotted, Polish Large White, F1 generation, F2 generation, chromosome 12, chromosome 4, chromosome 7, microsatellites, linkage analysis, pig genome mapping project, molecular genetic method, carcass fat deposition, ham, polymorphism, quantitative traits, loci identification.


Leenhouwers, J.I.; Almeida Junior, C.A. de.; Knol, E.F.; Lende, T. Van der (2001). Progress of farrowing and early postnatal pig behavior in relation to genetic merit for pig survival. Journal of Animal Science 79 (6): 1416-1422, ISSN: 0021-8812.

NAL Call No.: 49 J82.

Abstract: The objective of this study was to investigate whether pigs with different genetic merit for survival differed in birth weight, progress of farrowing, early postnatal behavior, or rectal temperature within 24 h after birth. On a nucleus farm in Rio Verde, Brazil, information was collected on 280 pigs, originating from 25 litters with known estimated breeding values for pig survival (EBVps). Litters were selected in such a way that a continuous range of EBVps with a maximum genetic contrast was achieved. Birth weight was recorded for all pigs. Indicators for progress of farrowing were birth intervals and duration of farrowing. Behavioral indicators of pig vitality were time until first upright standing (FUS), time until first udder contact (FUC), time until first teat in mouth (FTM), and time until first colostrum uptake (FCU). Rectal temperature was measured within 24 h after birth. Farrowing survival and early postnatal survival (within 3 d after farrowing) were registered. Farrowing survival and early postnatal survival both increased with increasing EBVps (farrowing survival: P = 0.007; early postnatal survival: P = 0.027). Birth weight decreased with increasing EBVps (P = 0.01). Birth intervals tended to increase with increasing EBVps (P = 0.10) and duration of farrowing was not related to EBVps. Time until first teat in mouth increased with increasing EBVps (P = 0.05), but the other behavioral indicators of pig vitality were not related to EBVps. Rectal temperature within 24 h after birth was not related to EBVps. Pigs with a higher genetic merit for survival have a lower birth weight but nevertheless have an increased farrowing survival and early postnatal survival. Their increased survival cannot be explained by differences in progress of farrowing, early postnatal behavior, or rectal temperature within 24 h after birth.

Keywords: behavior, survival, genetic variation, farrowing, body temperature, litters, breeding value, duration, time, vigor, Brazil.


Li, N.; Wu, C.; Zhao, Y. (2001). DNA markers for pig litter size. Official Gazette of the United States Patent and Trademark Office Patents 1250 (3): No Pagination, ISSN: 0098-1133.

NAL Call No.: T223 A21.

Keywords: patent, DNA markers, nucleic acid analysis, analytical method, screening method, litter size.


Lonergan, S.M.; Huff Lonergan, E.; Rowe, L.J.; Kuhlers, D.L.; Jungst, S.B. (2001). Selection for lean growth efficiency in Duroc pigs influences pork quality. Journal of Animal Science 79 (8): 2075-2085, ISSN: 0021- 8812.

Keywords: finishing pigs, breed, Duroc, intensive selection, lean growth efficiency, tested negative for halothane gene, fresh pork, meat quality traits, quality, tenderness, water holding capacity, soft, exudative.


Schulze, V.; Roehe, R.; Looft, H.; Kalm, E. (2001). Effects of continuous and periodic feeding by electronic feeders on accuracy of measuring feed intake information and their genetic association with growth performances. Journal of Animal Breeding and Genetics 118 (6): 403-416, ISSN: 0931-2668.

NAL Call No.: 442.8 Z35.

Keywords: electronic feeding stations, equipment, continuous feeding regime, periodic feeding regime, growth rate, backfat thickness, feed intake, estimation accuracy, measurement accuracy, feed intake behavior, feeder visits per day, time per day, time per visit.


Serenius, T.; Sevon, A.M.; Mantysaari, E.A. (2001). The genetics of leg weakness in Finnish Large White and Landrace populations. Livestock Production Science 69 (2): 101-111, ISSN: 0301-6226.

NAL Call No.: SF1.L5.

Keywords: breed, Finnish Large White, Lancrace, performance testing stations, genetic parameters, leg action, buck kneed, small inner claws, turned out fore legs, small inner claws, upright pasterns on the hind legs, scoring system, progeny testing, genetic correlations with fat and lean percentages.


Sterle, J.A.; Skaggs, C.L.; Griffin, D.B. (2001). Frequency of the porcine stress gene in show pigs and its effects on meat quality. Journal of Dairy Science 84 (Supplement 1): 73, Joint Meeting of the American Dairy Science Association, American Meat Science Association, American Society of Animal Science and the Poultry Science Association, Indianapolis, Indiana, USA, July 24-28, 2001, ISSN: 0022-0302.

NAL Call No.: 44.8 J822.

Keywords: breed, Berkshire, Chester White/Landrace, Duroc, Hampshire, Poland-China/Spot, Yorkshire, crossbreds, carcass quality, meat product, meat quality, meeting abstract.


Suzuki, K. (2001). Breed characteristic of the pig. Journal of Reproduction and Development 47 (Suppl. 1): S19-S26, ISSN: 0916-8818.

NAL Call No.: SF1 K3.

Keywords: blood components, breed classification, feed restriction, growth performance, organ weights, domestication.


Tantasuparuk, W.; Lundeheim, N.; Dalin, A.M.; Kunavongkrit, A.; Einarsson, S. (2001). Weaning to service interval in primiparous sows and its relationship with longevity and piglet production. Livestock Production Science 69 (2): 155-162, ISSN: 0301-6226.

NAL Call No.: SF1.L5.

Keywords: sows, Landrace, Yorkshire, weaning to service interval, lifetime piglet production, total born piglets, live born piglets, pigs weaned, litter weaning weight.


Torrey, S.; Pajor, E.; Weaver, S.; Kuhlers, D.; Stewart, T. (2001). Effect of genetic selection for loin-eye area on belly-nosing and plasma cortisol in weanling Landrace pigs. Journal of Dairy Science 84 (Supplement 1): 14-15, Joint Meeting of the American Dairy Science Association, American Meat Science Association, American Society of Animal Science and the Poultry Science Association, Indianapolis, Indiana, USA, July 24-28, 2001, ISSN: 0022-0302.

NAL Call No.: 44.8 J822.

Keywords: weanling pigs, Landrace, breed, plasma, cortisol, serotonin, gamma-coat-radioimmunoassay, detection method, farrowing date, genetic selection, belly-nosing, loin-eye area, handling, stress, lean growth, meeting abstract.


Tummaruk, P.; Lundeheim, N.; Einarsson, S.; Dalin, A.M. (2001). Repeat breeding and subsequent reproductive performance in Swedish Landrace and Swedish Yorkshire sows. Animal Reproduction Science 67 (3 4): 267-280, ISSN: 0378- 4320.

NAL Call No.: QP251 A5.

Keywords: gilts, sows, breed, Swedish Landrace, Swedish Yorkshire, repeat breeding, reproductive performance, parity number, boar breed, season, mating type, return to estrus, litter size.


Visscher, A.H.; Janss, L.L.G; Niewold, T.A.; de Greef, K.H. (2002). Disease incidence and immunological traits for the selection of healthy pigs. A review. Veterinary Quarterly (Netherlands) 24 (1): 29-34, ISSN: 0165-2176.

NAL Call No.: SF601.V46.

Abstract: Disease is a major issue in animal production systems and society demands that the use of medicines and vaccines be reduced. This review describes the breeding approaches that could be used to improve disease resistance and focuses especially on their application to pigs. Disease reduction by genetic means has certain advantages through cumulative and permanent effects, and direct and indirect selection methods are available. Direct selection for disease incidence requires, besides a unique pig identification and disease registration system, challenge routines that are inconvenient in intensive pig production. Indirect selection for the expression of immune capacity may be an alternative but requires detailed knowledge of the different components of the immune system. There is ample opportunity for genetic improvement of the immune capacity because immune traits show substantial genetic variation between pigs. We therefore conclude that indirect selection via immune traits is very interesting, also for practical implementation, and that there is an urgent need for knowledge, within lines, about the genetic relationships between immune capacity traits and resistance to specific diseases or to disease incidence in general. Furthermore, knowledge about the relationship between immune system traits and production traits is needed as well as knowledge about the effect of selection on the epidemiology of disease at a farm/population level and on the host-pathogen interaction and coevolution.

Keywords: genetic selection, disease resistance, immune capacity traits, direct and indirect selection, variation.


Wolf, J.; Peskovicova, D.; Groeneveld, E. (2001). Stability of genetic parameter estimates for production traits in pigs. Journal of Animal Breeding and Genetics 118 (3): 161-172, ISSN: 0931-2668.

NAL Call No.: 442.8 Z35.

Keywords: breed, Czech Landrace, Slovakian breed, White Meaty swine, lean meat content, average daily gain, weight of valuable cuts, backfat thickness, genetic variance.


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