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CABI Book Chapter Info
Cover for A blank canvas: the world as it was in the mid-20th century.

This chapter describes the brief history and continuing progress of selection and breed development for desirable traits in livestock.

Author(s)
Alderson, L.
ISBN
2020 CABI (H ISBN 9781789247114)
Type
Book chapter
Abstract

Porcine reproductive and respiratory syndrome (PRRS) is a viral disease associated with a decrease in the number of born alive piglets (NBA) and an increase in the number of lost piglets (NLP) per farrowing. Under practical conditions, it is critical to assess whether a farm is suffering PRRSV...

Author(s)
Fraile, L.; Fernández, N.; Pena, R. N.; Balasch, S.; Castellà, G.; Puig, P.; Estany, J.; Valls, J.
Publisher
Elsevier B.V., Amsterdam, Netherlands
Citation
Preventive Veterinary Medicine, 2020, 177,
Abstract

Thermal stress has been shown to result in decreased egg production, decreased eggshell quality, and ultimately millions of dollars in losses to the industry. Therefore, there are many factors to consider when implementing genetic selection programs aimed at improving egg production under tropical...

Author(s)
Radwan, L. M.
Publisher
Elsevier, Oxford, UK
Citation
Journal of Thermal Biology, 2020, 89,
Abstract

The Nordic countries are committed to conserving farm animal genetic diversity. National reports on phenotypic and genetic characterization point towards a lack of characterization for many Nordic native breeds. Little to no knowledge on the traits of the animals and their derived products leads to ...

Author(s)
Kierkegaard, L. S.; Groeneveld, L. F.; Kettunen, A.; Berg, P.
Publisher
Taylor & Francis, Abingdon, UK
Citation
Acta Agriculturæ Scandinavica. Section A, Animal Science, 2020, 69, 1/2, pp 2-24
Abstract

Norwegian Elkhound Grey is used for both leashed and non-leashed tracking. This study provides influence of fixed effects and estimates of genetic parameters of traits related to both types of tracks. In total, 5393 records from 1991 animals tested in the years 1995-2014 on lashed performance (5...

Author(s)
Wetten, M.; Aasmundstad, T.; Vangen, O.
Publisher
Taylor & Francis, Abingdon, UK
Citation
Acta Agriculturæ Scandinavica. Section A, Animal Science, 2020, 69, 1/2, pp 101-108
AbstractFull Text

Objectives of the current study were to (i) investigate effects of selection for bodyweight at four weeks old on bodyweight (BW) and bodyweight gain (BWG) across four generations; (ii) estimate correlated response to selection for BW and BWG at different ages; and (iii) document best linear...

Author(s)
El-Attrouny, M. M.; Manaa, E. A.; Ramadan, S. I.
Publisher
South African Society of Animal Science, Hatfield, South Africa
Citation
South African Journal of Animal Science, 2020, 50, 2, pp 325-333
AbstractFull Text

Karakul sheep in Turkey is an endangered breed according to the total number of ewes. Two herds of Karakul sheep in Tokat Province, reared similar environmental conditions, kept in situ in vivo conservation as a gene resource. This study aimed to determine various performance traits of Karakul...

Author(s)
Erol, H.; Özbeyaz, C.; Ünal, N.
Publisher
Ankara Üniversitesi, Veteriner Fakültesi Dekanlig, Ankara, Turkey
Citation
Ankara Üniversitesi Veteriner Fakültesi Dergisi, 2020, 67, 2, pp 113-120
AbstractFull Text

Phenotypic and genealogy date of Siboney de Cuba cows from 1984 to 2016 calving years was used. The goal of this study was to estimate the parameters and breeding values (VG) of production, reproduction and longevity traits. Besides to construct selection index (IS) using principal componente (CP)...

Author(s)
Hernández, A.; Ponce de León, R.
Publisher
Instituto de Zootecnia, Facultad de Veterinaria, Córdoba, Spain
Citation
Archivos de Zootecnia, 2020, 69, 265, pp 46-53
Abstract

The inheritance of allelic variants of the kappa-casein gene from bulls with different genotypes and their influence on the milk production of daughters were studied. For research, PCR diagnostics of daughters in the herds of black-and-white cattle at the farms "Azeleevo" and "Vakhitovo" (OJSC "Red ...

Author(s)
Shaidullin, R.; Sharafutdinov, G.; Moskvicheva, A.; Faizov, T.; Yuldashbaev, Y.
Publisher
EDP Sciences S.A., Les Ulis, France
Citation
BIO Web of Conferences, 2020, 17,
Abstract

A preliminary evaluation towards a breeding value of the Holstein breeding bulls with different genotypes of somatotropin cascade genes is presented: pituitary transcription factor or growth hormone factor (PIT1), prolactin (PRL), somatotropin (GH), somatotropin releasing hormone (GHRH),...

Author(s)
Zagidullin, L.; Gilemhanov, I.; Khisamov, R.; Tyulkin, S.
Publisher
EDP Sciences S.A., Les Ulis, France
Citation
BIO Web of Conferences, 2020, 17,

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