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Abstracts - Management

Breeding for resilience in finishing pigs can decrease tail biting, lameness and mortality

Breeding for resilience traits based on deviations in longitudinal weight data can decrease pigs’ tail biting wounds, lameness and mortality while improving uniformity at the pen level.

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Influences on the decision to euthanize a compromised pig

The two most salient reasons outlined for the delay of timely euthanasia were uncertainty and misinterpretation of the chance for healing.

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Enrichment for growing pigs - Impact on behavior and skin lesions

Findings suggest that the choice of point enrichment object can influence the level of interaction, level of interest over time, activity level, and skin lesions in growing pigs.

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Comparison between intramuscular and intranasal administration of sedative drugs used for piglet castration

Intranasal application showed longer induction times, shorter recovery times and higher scores for defence and vocalisation.

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Sound feeding signal for gestating sows: Evaluation of an individual learning strategy and its beneficial effects in groups

This study investigates the potential of teaching gestating sows an individual sound signal to reduce aggression resulting from competition for feed access.

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Blood transcriptomic differences in the immune response under stressful environmental according to stocking density

The study confirmed the biological mechanisms through immunological expression patterns according to stocking density.

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Split weaning improves pregnancy rate and embryo survival in sows mated in lactation

Weaning a portion of the litter prior to mating in lactation improved pregnancy rates and embryo survival.

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Effect of sex and birth weight on the performance, microbiome, immune response and colostrum intake of piglets

Females had a higher rate of permanence in the production system and low birth weight piglets had lower colostrum intake.

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Added aroma changes pig behaviour in novel situation aimed for stunning

An added aroma increased pigs’ exploration behaviour towards the foam, and thus could serve as a distraction when inside a confined foam box.

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Can environmental nebulization of lavender essential oil improve welfare and modulate nasal microbiota of growing pigs?

The study suggests lavender essential oil may improve the welfare of growing pigs. Inhalation of lavendar reduced the nasal microbiome diversity.

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Hourly feeding of lactating sows: Enhancing performance and welfare in smart farm-based systems

An hourly feeding regime could optimize sow productive performance, body condition, milk yield, welfare, and piglet growth in swine production.

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Effects of space allowance during gestation and socialization training during growing period on the productivity and welfare of primiparous sows

Primiparous sow aggression may be reduced by increasing space allowance during gestation with social training during the growing period.

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A second iron injection administered to piglets during lactation improves hemoglobin concentration, growth performance, and carcass characteristics at slaughter

Administering a second iron injection resulted in greater hemoglobin at weaning and the end of the nursery as well as improved growth performance from weaning to the end of study weight and increased carcass weight at slaughter.

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Factors associated with farrowing assistance in hyperprolific sows

The frequency of farrowing assistance in sows varied among herds and was influenced by parity number.

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Genetic and phenotypic time trends of litter size, piglet mortality, and birth weight in pigs

The increases in litter size and piglet survival rates due to balanced breeding policies lead to reduced total numbers of dead piglets coinciding with a certain pig production volume.

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Effect of postpartum meloxicam administration to sows and split-suckling

Postpartum administration of meloxicam to sows reduced clinical cases of disease, increased ADG in pigs, and increased carcass weight at slaughter.

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Dominance hierarchy in groups of pregnant sows: characteristics and identification of related indicators

Dominance rank of an individual can be estimated according to the feeding order, body weight or parity if there is enough variability in the group.

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Heat stress alters hematological parameters in barrows and gilts

Biological sex mediates, at least in part, the physiological response to heat stress.

Pig glossary

Definition for the most commonly used pig terms

Quality of hams from entire males

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Effects over time of different types of sounds on gestating sows’ behavior

Frequent emission of short sounds can reduce time spent sleeping and cause behavior changes. However, gestating sows can habituate to the sound stimuli and return to normal behavior.

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Impact of enrichment and repeated mixing on resilience in pigs

Enrichment did not enhance the speed of recovery from challenges in pigs, although there were indications of reduced stress

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The beneficial effects of providing prepartum sows with nesting materials

The provision of nesting material to sows prior to farrowing can increase sow maternal care traits and piglet performance.

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333 Emerging Voices: Evaluation of tail biting in pigs at the abattoir

Integrated Master's Dissertation in Veterinary Medicine by Alice Gomes from UTAD (Portugal) advised by Professor Madalena Vieira-Pinto.

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Effects of providing sensory attractants to suckling pigs during lactation and after weaning on post-weaning growth performance

Environmental enrichment with cubes appears to have the greatest effect when applied post-weaning whereas flavor attractants appear to have the greatest effect when applied both pre- and post-weaning.

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