Genetic parameters of feeding behaviour and performance traits in group-housed Large White and French Landrace growing pigs

Labroue, F.; Gueblez, R.; Sellier, Pierre

doi:10.1186/1297-9686-29-4-451

Cited by 67 publications

(34 citation statements)

References 6 publications

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“…Large White v. French Landrace; Labroue et al, 1997). This is despite the fact that the feeding behaviour traits considered are moderately heritable (Labroue et al, 1997;Howie, 2010). The absence of such correlations indirectly suggests that differences in feeding behaviour between different genotypes are unlikely to contribute significantly to the nutrient efficiency of poultry and pigs systems, at least through food spillage.…”

Section: External Pre-ingestion Lossesmentioning

confidence: 98%

“…This issue has been taken care of, in part, by the design of appropriate equipment that minimises spillage in both poultry and pig systems; however, it has been estimated that under current commercial conditions spillage may still account for 2% to 5% loss of the total food consumed (Svihus et al, 2004;Kyriazakis and Whittemore, 2006). As there are substantial differences in the feeding behaviour traits of lines selected for either different productive traits or between different breeds of both poultry and pigs (Labroue et al, 1997 andHowie et al, 2009), such differences could contribute, in principle at least, to variation in food spillage. Behavioural traits that intuitively have the potential to affect these may include feeding rate and total time spent feeding.…”

Section: External Pre-ingestion Lossesmentioning

confidence: 99%

“…However, recent studies that utilise the technology of recording the individual feeding behaviour of poultry and pigs housed in groups, and apply an appropriate analysis on these traits, suggest that there are very low genetic and phenotypic correlations between feeding behaviour and Kyriazakis performance traits between lines of broiler breeders selected for different growth and food conversion efficiency intensities (Howie, 2010) and between different pig genotypes (e.g. Large White v. French Landrace; Labroue et al, 1997). This is despite the fact that the feeding behaviour traits considered are moderately heritable (Labroue et al, 1997;Howie, 2010).…”

Section: External Pre-ingestion Lossesmentioning

confidence: 99%

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Opportunities to improve nutrient efficiency in pigs and poultry through breeding

Kyriazakis

2011

Animal

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Efficiency of food and nutrient (including energy) use are considered the key factors in the economic and environmental performance of livestock systems. The aim of this paper is to consider the basis of genetic variation in the components that constitute dietary nutrient efficiency; and to conclude whether there would be benefit, in any relevant terms, in including these components in breeding programmes that aim to improve nutrient efficiency within pig and poultry systems of production. The components considered are (i) external, pre-ingestion losses, such as food spillage and its relation to feeding behaviour traits, (ii) digestive efficiency, (iii) maintenance requirements, (iv) net efficiency of energy and nutrient utilisation and (v) partitioning of scarce resources within productive and between productive and fitness functions. It is concluded that opportunities to exploit genetic variation exist mainly in the potential to improve the digestive efficiency of pigs and to reduce the maintenance requirements for resources mainly in hens, but also potentially in pigs. Current evidence suggests that there are very weak genetic and phenotypic correlations between components of feeding behaviour and productive traits, and little genetic variation in the net efficiency of nutrient utilisation among poultry and pig genotypes. The implication of the latter is that there would be little exploitable genetic variation in the partitioning of scarce nutrients between productive functions. Currently, there is a lack of understanding of the genetic basis of the partitioning of scarce nutrients between productive and fitness functions, and how this may impact upon the efficiency of nutrient use in pig and poultry systems. This is an area of research to which further effort might usefully be devoted.

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Section: External Pre-ingestion Lossesmentioning

confidence: 98%

Section: External Pre-ingestion Lossesmentioning

confidence: 99%

Section: External Pre-ingestion Lossesmentioning

confidence: 99%

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Opportunities to improve nutrient efficiency in pigs and poultry through breeding

Kyriazakis

2011

Animal

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“…Genetic variation in feeding activity exists in the three terrestrial species reviewed and shows large breed variation (e.g. cattle: Nkrumah et al, 2007; pig: Labroue et al, 1997;poultry: Howie et al, 2011). Feeding frequency and feeding rate are more heritable (min 5 0.38; max 5 0.58) than feeding duration ( Table 2).…”

Section: Genetics Of the Behavioural Response To Changes In The Physimentioning

confidence: 99%

“…Growth is correlated favourably with feeding rate in cattle and pigs. Feeding rate is correlated unfavourably with meat production, whereas feeding duration and leanness show negative or null genetic associations (Labroue et al, 1997;Robinson and Oddy, 2004). Growth and leanness are not genetically correlated with feeding frequency in pigs, but a G/A substitution at the MC4R gene (SSC1), which encodes a melanocortin receptor, has a positive effect on fatness, growth and daily feed intake, probably mediated through the central control of appetite (Kim et al, 2000).…”

Section: Genetics Of the Behavioural Response To Changes In The Physimentioning

confidence: 99%

Genetics of behavioural adaptation of livestock to farming conditions

Canario

Mignon-Grasteau²,

Dupont‐Nivet

et al. 2013

Animal

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Behavioural adaptation of farm animals to environmental changes contributes to high levels of production under a wide range of farming conditions, from highly controlled indoor systems to harsh outdoor systems. The genetic variation in livestock behaviour is considerable. Animals and genotypes with a larger behavioural capacity for adaptation may cope more readily with varying farming conditions than those with a lower capacity for adaptation. This capacity should be exploited when the aim is to use a limited number of species extensively across the world. The genetics of behavioural traits is understood to some extent, but it is seldom accounted for in breeding programmes. This review summarizes the estimates of genetic parameters for behavioural traits in cattle, pigs, poultry and fish. On the basis of the major studies performed in the last two decades, we focus the review on traits of common interest in the four species. These concern the behavioural responses to both acute and chronic stressors in the physical environment (feed, temperature, etc.) and those in the social environment (other group members, progeny, humans). The genetic strategies used to improve the behavioural capacity for adaptation of animals differ between species. There is a greater emphasis on responses to acute environmental stress in fish and birds, and on responses to chronic social stress in mammals.

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Group feeding behavior of brown trout is a correlated response to selection for growth shaped by the environment

et al. 2007

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Group feeding pattern is a response correlated to selection for growth in brown trout. Previous results suggest that the feeding pattern of two lines (NL and SY), selected with the same process at two different fish farms, differ. This study addresses the following questions: (i) are the patterns differentially fixed by the selection process and if yes (ii) is this explained by the different genetic background of the lines? In a first experiment, we tested if the group feeding behavior can be inherited. We produced and reared under the same experimental conditions selected hybrids (NLS x SYS) and pure SY selected line (SYS). We compared their behavior on self-feeders when reared single or mixed (groups of 500 fish; mean initial BW = 6 g, 90-day period). Growth rates were comparable among the groups. In the lines reared single, NLS x SYS exhibited greater morning feeding activity than SYS. Feeding activity of SYS was higher later in the day. The inter-day variation of the morning peak was less variable for the hybrid than for the SYS line. In the mixed group, the pattern was intermediate between that of the hybrid and the pure line. In a second experiment we compared the feeding pattern of control hybrids (NLC x SYC) to pure control lines (SYC and NLC) reared single or mixed (groups of 500 fish; mean initial BW = 12 g, 92-day period). Feeding activity patterns were similar among the control groups. These results show that group feeding pattern is a heritable trait that can be indirectly selected with growth, which shape is less influenced by the growth performance and the genetic background than by the environmental conditions applied during the selection process.

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Genetic parameters of feeding behaviour and performance traits in group-housed Large White and French Landrace growing pigs

Cited by 67 publications

References 6 publications

Opportunities to improve nutrient efficiency in pigs and poultry through breeding

Opportunities to improve nutrient efficiency in pigs and poultry through breeding

Genetics of behavioural adaptation of livestock to farming conditions

Group feeding behavior of brown trout is a correlated response to selection for growth shaped by the environment

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