Estimation of social genetic effects on feeding behaviour and production traits in pigs

Kavlak, A.T.; Strandén, Ismo; Lidauer, Martin; Uimari, Pekka

doi:10.1016/j.animal.2020.100168

Cited by 9 publications

(4 citation statements)

References 21 publications

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“…A detailed description of the data has been given in the study by Kavlak and Uimari (2019) , Kavlak et al (2021) , and Kavlak et al (2023) . Briefly, the data consisted of feeding behavior traits of 7,347 pigs (Finnish Yorkshire: 3,059, Finnish Landrace: 3,320, and their F1-crosses: 968) raised at the central test station Figen Oy (Längelmäki, Finland) between 2011 and 2016.…”

Section: Methodsmentioning

confidence: 99%

Inheritance of feed intake-based resilience traits and their correlation with production traits in Finnish pig breeds

Kavlak,

Uimari

2024

Journal of Animal Science

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High resilience against diseases, changing environmental conditions, and other stress factors and the ability to efficiently recover to normal status, is becoming increasingly important in pig production. Finding new phenotypes that relate to resilience is a crucial step for improving the resilience of pigs through selection. The objective of this study was to extract resilience-related phenotypes based on fluctuations in daily feed intake (DFI, g) and time spent in feeding per day (TPD, min) and to estimate the heritability of these traits and genetic correlations with production traits (PT). Resilience-related traits with high enough heritability and with either favorable or neutral genetic correlation with PT could be used in the selection program to improve the productivity and welfare of pigs. In this study, we used data from 7,347 Finnish Yorkshire, Landrace and crossbred pigs raised at the test station. Six pig-specific resilience-related phenotypes were extracted from the individual DFI and TPD: root mean square error (RMSE), quantile regression (QR), and coefficient of variation (CV). Root mean square error was calculated from the differences between the actual DFI (or TPD) and the pig-specific predicted values. Quantile regression was based on the number of days that a pig belonged to the group with the lowest 5% of pigs based on DFI (or TPD), and CV was calculated over the daily observations of DFI (or TPD). Production traits included average daily gain (ADG, g), backfat thickness (BF, mm), and feed conversion rate (FCR, g/g). The heritability estimates for resilience-related traits varied between 0.07 ± 0.02 (QRDFI) and 0.20 ± 0.03 (RMSETPD). The genetic correlations between resilience-related traits and PT were mostly neutral, but for example, RMSEDFI had a favorable genetic correlation with FCR and BF but an unfavorable correlation with ADG. Lastly, we observed that pigs belonging to the lowest 10% group based on their breeding value for QRTPD had a lower proportion (10% incidence) of sick days compared to the highest 10% breeding value group (30% incidence). Therefore, pigs exhibiting small TPD variation (related to high resilience) tend to be less susceptible to sickness than pigs with large TPD variation (related to low resilience). Given its moderate heritability, neutral genetic correlation with PT, and positive effect on health, QRTPD can be considered the most promising resilience-related trait in the Finnish production system.

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Section: Methodsmentioning

confidence: 99%

Inheritance of feed intake-based resilience traits and their correlation with production traits in Finnish pig breeds

Kavlak,

Uimari

2024

Journal of Animal Science

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“…Super starters and premium prestarters may include dry colostrum preparations. As a component of pre-starter feed, colostrum has a positive effect on the development of the intestinal tract, supports the immune system and has antibacterial and probiotic effects [12].…”

Section: Introductionmentioning

confidence: 99%

Special compound feeds and an immunostimulator to increase the live weight gain of suckling piglets

Lavrentev

Larionov

Mikhaylova

et al. 2021

IOP Conf. Ser.: Earth Environ. Sci.

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Sow milk is usually enough to meet the need for nutrients of three weeks age piglets. However from the beginning of life they need supplemental nutrients in the form of creep feeding. The objective of this study was to survey the usefulness of special mixed feeds (super starter, pre-starter, starter feeds) given as creep feeding and feeding to suckling pigs, as well as the use of immunostimulant for their health, better growth and development. The study showed that suckling pig fed with special super starter, pre-starter and starter mixed feed depending on age, as well as young animals additionally treated with intramuscular injected immunostimulant better by growth rate. The highest indicators for the live weight of piglets at the age of 60 days (weaning) and for the milk content of sows were in the experimental group, which was intramuscularly injected with an immunostimulator The highest live weight of (weaning) piglets aged 60 days was in treated groups.

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“…This ensures their good digestibility and absorption [7][8][9]. At the same time, silicon-based zeolite contributes to the formation of denser fecal masses, reduces or completely eliminates the development of diarrhea [10][11][12]. All this contributes to the improvement of nutrients and biologically active IOP Conf.…”

Section: Introductionmentioning

confidence: 99%

Silicon-based natural zeolites in feeding store pigs

Lavrentev

Evdokimov

Larionov

et al. 2021

IOP Conf. Ser.: Earth Environ. Sci.

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To realize the genetic potential of pig productivity and balance diets, it is perhaps to use various additives, including silicon-containing zeolite trepel. The novelty of the work - the use of zeolite in feeding as a preventive and therapeutic additive allows you to increase productivity and reduce the cost of feed and feed costs compared to similar additives. For the experiment, 4 recipes of mixed feeds were developed: one without the content of zeolite trepel and 3 with 3, 4, 5% of this additive. It is proved that the best dose of this drug is 3% of the mass of feed. It was found that the body weight gain in II group increased by 13.5%, in III group by 7.2%, and in IV group decreased by 4.41% compared to the control group. The addition of silicon-containing zeolite in the II and III experimental groups did not affect the consumption of mixed feed, and in the IV experimental group, a decrease in the consumption of mixed feed was observed. Feed consumption in the I, III and IV experimental groups decreased by 12.1%, 6.7% and 0.3%.

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Estimation of social genetic effects on feeding behaviour and production traits in pigs

Cited by 9 publications

References 21 publications

Inheritance of feed intake-based resilience traits and their correlation with production traits in Finnish pig breeds

Inheritance of feed intake-based resilience traits and their correlation with production traits in Finnish pig breeds

Special compound feeds and an immunostimulator to increase the live weight gain of suckling piglets

Silicon-based natural zeolites in feeding store pigs

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