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Animal Science Database

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Abstract

Litter size at d 5 (LS5) has been shown to be an effective trait to increase total number born (TNB) while simultaneously decreasing preweaning mortality. The objective of this study was to determine the optimal litter size day for selection (i.e., other than d 5). Traits included TNB, number born...

Author(s)
Putz, A. M.; Tiezzi, F.; Maltecca, C.; Gray, K. A.; Knauer, M. T.
Publisher
American Society of Animal Science, Savoy, USA
Citation
Journal of Animal Science, 2015, 93, 11, pp 5153-5163
Abstract

Different approaches for predicting genetic merit of piglet preweaning survival were compared using proportional hazard, threshold (TM), and sequential threshold (STM) models. Data were from 13,924 crossbred piglets (1,347 litters), born from 2000 to 2006, and originated by mating 189 Large White...

Author(s)
Cecchinato, A.; Gonzalez-Recio, O.; Maturana, E. L. de; Gallo, L.; Carnier, P.
Publisher
American Society of Animal Science, Savoy, USA
Citation
Journal of Animal Science, 2010, 88, 6, pp 1990-1998
Abstract

Genetic parameters for birth weight (BWT), preweaning mortality (PWM), and HCW were estimated for a crossbred pig population to determine if BWT could be used as an early predictor for later performances. Sire genetic effects for those traits were estimated to determine if early selection of...

Author(s)
Dufrasne, M.; Misztal, I.; Tsuruta, S.; Holl, J.; Gray, K. A.; Gengler, N.
Publisher
American Society of Animal Science, Savoy, USA
Citation
Journal of Animal Science, 2013, 91, 12, pp 5565-5571
Abstract

The aim of this study was to investigate piglet preweaning survival and its relationship with a total merit index (TMI) used for selection of Large White terminal boars for dry-cured ham production. Data on 13,924 crossbred piglets (1,347 litters), originated by 189 Large White boars and 328 Large...

Author(s)
Cecchinato, A.; Bonfatti, V.; Gallo, L.; Carnier, P.
Publisher
American Society of Animal Science, Savoy, USA
Citation
Journal of Animal Science, 2008, 86, 10, pp 2486-2495
Abstract

Individual records from 49,788 Large White piglets were used to evaluate preweaning mortality and its relationship with birth weight (BW). Preweaning mortality included farrowing mortality (TM) was also divided into stillbirth (SB), early (EM), late (LM) and total (ELM) preweaning mortality....

Author(s)
Arango, J.; Misztal, I.; Tsuruta, S.; Culbertson, M.; Holl, J. W.; Herring, W.
Publisher
Elsevier, Amsterdam, Netherlands
Citation
Livestock Science, 2006, 101, 1/3, pp 208-218
AbstractFull Text

Genetic parameters of total number of piglets born (TNB), number of piglets born alive (NBA) and weaned (NW) per litter, of the numbers (NS and ND) and rates (SR and DR) of stillbirths and dead piglets during the suckling period, of weight at birth (WB) and at weaning (WW) and of average daily gain ...

Author(s)
Bouquet, A.; Ligonesche, B.; Canario, L.; Bidanel, J. P.
Publisher
Institut du Porc, Paris, France
Citation
Journées de la Recherche Porcine en France, 2006, 38, pp 125-130
Abstract

Data on pre-weaning mortality of 12 727 live-born piglets from 1338 litters recorded at the pig breeding farm of the University of Kiel (Germany) from 1989 to 1994 were analysed. Deviances due to risk factors were estimated by generalized linear model and their odds-ratios by generalized linear...

Author(s)
Roehe, R.; Kalm, E.
Citation
Animal Science, 2000, 70, 2, pp 227-240
Abstract

The genetic association between individual birth weight and litter birth weight (LBW) was analysed on records of 14 950 crossbred pigs born between 1988 and 1994 at the pig breeding farm of the University of Kiel, Germany. Phenotypically, preweaning mortality of pigs decreased with an increase in...

Author(s)
Roehe, R.
Citation
Journal of Animal Science, 1999, 77, 2, pp 330-343
Abstract

Data on 54 500 piglets born between 1988 and 1994 in 4 nucleus breeding units of a pig breeding organization were used to analyse piglet survival to weaning (management was designed to achieve weaning at 28 days of age). Animals were from 2 dam lines. Variance and covariance components were...

Author(s)
Arendonk, J. A. M. van; Rosmeulen, C. van; Janss, L. L. G.; Knol, E. F.
Citation
Livestock Production Science, 1996, 46, 3, pp 163-171
Abstract

Data on 4538 litters from 1236 Landrace sows in Brazil were analysed. The heritability of piglet mortality to 21 days of age was 0.069, and the repeatability was 0.073. The genetic correlations of total litter size with the incidence of stillbirths and mortality to 21 days were 0.51 and 0.38...

Author(s)
Siewerdt, F.; Cardellino, R. A.
Citation
Revista da Sociedade Brasileira de Zootecnia, 1996, 25, 5, pp 902-909

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