Genetic improvement of sow longevity and its economic impact on commercial pork production

Mote, Benny E; Serenius, Timo; Supakorn, China; Stalder, Kenneth J.

doi:10.4314/sajas.v49i6.8

Cited by 2 publications

(2 citation statements)

References 43 publications

(70 reference statements)

Supporting

Mentioning

Contrasting

Order By: Relevance

“…This helps to reduce the cost of proving bulls by more than 90% (Schaeffer, 2006). GS is also a promising procedure to increase genetic gain in pig breeding, especially for the traits that are not easy to measure on selection candidates and/or have low heritability, such as meat quality (Lopez et al, 2020), and also on traits obtained late in pig's life (Mote et al, 2019).…”

Section: Introductionmentioning

confidence: 99%

Multi‐trait genomic prediction in pigs using single and multistep methods based on the absorption of ungenotyped animals

Luan

Nordbø

Andersen-Ranberg

et al. 2023

J Animal Breeding Genetics

View full text Add to dashboard Cite

Many quantitative traits measured in breeding programs are genetically correlated. The genetic correlations between the traits indicate that the measurement of one trait carries information on others. To benefit from this information, multi‐trait genomic prediction (MTGP) is preferable to use. However, MTGP is more difficult to implement compared to single‐trait genomic prediction (STGP), and even more challenging for the goal to exploit not only the information on other traits but also the information on ungenotyped animals. This could be accomplished using both single and multistep methods. The single‐step method was achieved by implementing a single‐step genomic best linear unbiased prediction (ssGBLUP) approach using a multi‐trait model. Here, we examined a multistep analysis based on an approach called “Absorption” to achieve this goal. The Absorption approach absorbed all available information including the phenotypic information on ungenotyped animals as well as the information on other traits if applicable, into mixed model equations of genotyped animals. The multistep analysis included (1) to apply the Absorption approach that exploits all available information and (2) to implement genomic BLUP (GBLUP) prediction on the absorbed dataset. In this study, the ssGBLUP and multistep analysis were applied to 5 traits in Duroc pigs, which were slaughter percentage, feed consumption from 40 to 120 kg (FC40_120), days of growth from 40 to 120 kg (D40_120), age at 40 kg (A40) and lean meat percentage. The results showed that MTGP yielded higher accuracy than STGP, which on average was 0.057 higher for the multistep method and 0.045 higher for ssGBLUP. The multistep method achieved similar prediction accuracy as ssGBLUP. However, the prediction bias of the multistep method was in general lower than that of ssGBLUP.

show abstract

Section: Introductionmentioning

confidence: 99%

Multi‐trait genomic prediction in pigs using single and multistep methods based on the absorption of ungenotyped animals

Luan

Nordbø

Andersen-Ranberg

et al. 2023

J Animal Breeding Genetics

View full text Add to dashboard Cite

show abstract

“…Leg disorders, on the other hand, have a critical influence on the longevity of breeders. In fact, a genetic correlation of 0.32 between the overall leg action and the length of productive life was reported in some swine populations [ 7 ]. The animals at the created colony were tracked from birth, and parameters such as weight and average daily gain (ADG) were periodically registered, making them a good model to find out if a correlation with lameness exists.…”

Section: Introductionmentioning

confidence: 99%

Differences in Weight, Hierarchy, and Incidence of Lameness between Two Groups of Adult Pigs Derived from Assisted Reproductive Technologies

Romero-Aguirregomezcorta

Ramírez

Ortín

et al. 2022

Animals

View full text Add to dashboard Cite

The in vitro production (IVP) and subsequent transfer of embryos (ET) to recipient mothers is not yet an established reproductive technology in the pig industry, as it is in cattle. However, that the trade of IVP-cryopreserved pig embryos is expected to start in the next decades. Society and governments are increasingly aware of the repercussions that IVP could have for animal health, welfare, behavior, or food safety, but proven scientific information for this type of animal does not exist, since no colonies of pigs have been created to this end. We created a small one and studied the differences between 16 IVP-derived pigs and 14 pigs derived from artificial insemination (AI), at 3.5 years of age, conceived from the same boar, and housed and fed under the same conditions since they were born. Incidence of lameness, position in the herd hierarchy, weight, adenosine deaminase activity, and hematological and biochemical analytes were compared between the two groups of animals. The results showed that the IVP animals weighed more, occupied higher positions in the herd hierarchy, and had a lower incidence of lameness. Although genetic differences from the maternal line could explain some of these results, it is also possible that the IVP animals developed better adaptative abilities, but more studies with a higher number of animals are necessary to reach consistent conclusions.

show abstract

Genetic improvement of sow longevity and its economic impact on commercial pork production

Cited by 2 publications

References 43 publications

Multi‐trait genomic prediction in pigs using single and multistep methods based on the absorption of ungenotyped animals

Multi‐trait genomic prediction in pigs using single and multistep methods based on the absorption of ungenotyped animals

Differences in Weight, Hierarchy, and Incidence of Lameness between Two Groups of Adult Pigs Derived from Assisted Reproductive Technologies

Contact Info

Product

Resources

About