Risk factors associated with the different categories of piglet perinatal mortality in French farms

Pandolfi, Fanny; Edwards, Sandra A.; Robert, F X; Kyriazakis, Ι.

doi:10.1016/j.prevetmed.2016.12.005

Cited by 39 publications

(36 citation statements)

References 47 publications

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…The number of stillborn piglets has been associated with several non-infectious factors with parity and litter size being of primary importance (Vanderhaeghe et al, 2013;Pandolfi et al, 2017). In our study, breeding farms were shown to be associated with more stillborn piglets.…”

Section: Piglet-related Performance Parameterssupporting

confidence: 46%

Factors associated with specific health, welfare and reproductive performance indicators in pig herds from five EU countries

Chantziaras

Dewulf

Limbergen

et al. 2018

Preventive Veterinary Medicine

View full text Add to dashboard Cite

Production diseases are often of multi-factorial origin in which environment (housing, nutrition and management) health and reproductive challenges show complex interactions. The aim of this study was to identify specific environment-related factors and to discuss their associations with health, welfare and reproductive performance in sows and piglets, in diverse systems using data from 130 farms from five EU countries. Two sets of data were used: a) a questionnaire was developed for sows and piglets covering farm management, interventions and housing and b) farm production data covering various performance parameters. Eight parameters were further selected, four of which were related to sow reproductive performance (litter index, replacement rate, repeat breeding (i.e. failure to breed after one mating), weaning to first mating interval) and the remaining four to litter / piglet health performance (piglets born alive per litter, piglets born dead per litter, preweaning mortality rate and weaned piglets per litter). Univariable and multivariable linear models were employed to identify risk factors. Associations were considered significant if P ≤ 0.007 (a criterion of p≤0.05 corrected for the number of parameters tested). Various risk and protective factors were identified for each tested outcome variable. Country effects were included in all models as a fixed factor. Adjusted R-squared values for the multivariable models varied between 9.6% (preweaning mortality) and 66% (litter index). Litter index (litters/sow/year) was negatively associated with a higher weaning age of the piglets. Housing recently weaned sows to be inseminated in a separate unit from the gestation unit had a positive association with litter index. Repeat breeding was negatively associated with PRRS-free farms, farms that bred (raised) all gilts on the farm and farms that perform farrowing induction of sows. PRRS-free farms were also associated with a higher replacement rate. Farms that bred gilts on the farm and PRRS-free farms were negatively associated with preweaning mortality. Natural ventilation in the gestation unit was associated with fewer piglets born alive and with fewer weaned piglets. Closed type of farms was associated with less piglets born dead. The use of open box housing system for pregnant sows (provision of individual resting areas) was associated with more weaned piglets. In conclusion, several factors related to applying good farm and health management, and optimal housing conditions showed positive association with various sow and piglet performance parameters. Further studies will help to assess causal links for these factors.

show abstract

Section: Piglet-related Performance Parameterssupporting

confidence: 46%

Factors associated with specific health, welfare and reproductive performance indicators in pig herds from five EU countries

Chantziaras

Dewulf

Limbergen

et al. 2018

Preventive Veterinary Medicine

View full text Add to dashboard Cite

show abstract

“…A seleção genética para o tamanho de leitegada resultou em leitões mais heterogêneos, com um maior número de animais menores levando a uma menor viabilidade ao nascimento (PANZARDI et al, 2013;PANDOLFI et al, 2017). A capacidade prejudicada de leitões menores em manter o equilíbrio homeotérmico é explicada pela sua maior área de superfície o que resulta em uma maior perda de calor, além disso o peso corporal também influencia na capacidade de termoregulação (HERPIN et al, 2002;ANDERSON;PEDERSON, 2016).…”

Section: Resultados E Discussõesunclassified

Avaliação Do Impacto Do Peso, Da Área De Superficie E Do Volume Corporal Em Leitões Sobre a Capacidade De Sobrevivência Na Fase De Maternidade

Duarte¹,

Soares²,

Antunes³

2018

Enci Bio

View full text Add to dashboard Cite

RESUMO Com os avanços nos programas de melhoramento genético as fêmeas suínas tornaram-se hiperprolificas. Embora esta característica resulte em um maior número de leitões desmamados a mortalidade durante a fase de maternidade é preocupante representando grandes perdas para a suinocultura industrial. Objetivou-se com este estudo avaliar a relação entre área de superfície pelo volume do corpo de leitões que morreram esmagados e seus respectivos companheiro de baia. Foi realizado o acompanhamento de fêmeas suínas da linhagem NAIMA ® do parto até o desmame para registro de mortes dos leitões por esmagamento. Quando constatada a morte por esmagamento era coletado os dados de comprimento e circunferência para verificar as diferenças entre os leitões que morreram esmagados e seus respectivos companheiros de baia que sobreviveram na mesma leitegada, em que se encontravam no momento da morte. Foram avaliadas 32 leitegadas, um total de 192 leitões dos quais 160 leitões vivos e 32 leitões provenientes de morte por esmagamento. A média dos pesos dos leitões esmagados e a relação área de superfície pelo volume apresentaram diferença estatisticamente significativa. A correlação de Pearson foi significativa para todas as variáveis analisadas e a área de superfície e volume apresentaram correlação positiva com o peso, enquanto a relação área de superfície sobre volume foi inversamente correlacionada com peso e volume corporal. PALAVRAS-CHAVE: leitegada. Mortalidade. Uniformidade.

show abstract

“…As the birthweight of the piglet has been decreasing, the relative size difference between the sow and her newborn piglet has increased, which is one known factor for increased crushing. In a crushing event, the newborn may be instantly killed, or it can survive with varying degrees of tissue damage, which may cause severe pain and suffering for it (Pandolfi, Edwards, Robert, & Kyriazakis, 2017;Yun et al, 2018).…”

Section: He Alth and Welfare Impli C Ati On S Of The L Arg E Lit Tementioning

confidence: 99%

The challenge of large litters on the immune system of the sow and the piglets

Oliviero

Junnikkala

Peltoniemi

2019

Reprod Domestic Animals

View full text Add to dashboard Cite

The use of hyperprolific sow lines has increased litter size considerably in the last three decades. Nowadays, in some countries litters can reach up to 18–20 piglets being a major challenge for the sow's physiology during pregnancy, parturition and lactation. The increased number of piglets born per litter prolongs sensibly the duration of farrowing, decreases the piglets’ average weight at birth and their vitality, increases the competition for colostrum intake and can affect negatively piglets’ survival. This review aims to describe how large litters can affect the immune system of the sow and the piglets and proposes measures to improve this condition.

show abstract

Risk factors associated with the different categories of piglet perinatal mortality in French farms

Cited by 39 publications

References 47 publications

Factors associated with specific health, welfare and reproductive performance indicators in pig herds from five EU countries

Factors associated with specific health, welfare and reproductive performance indicators in pig herds from five EU countries

Avaliação Do Impacto Do Peso, Da Área De Superficie E Do Volume Corporal Em Leitões Sobre a Capacidade De Sobrevivência Na Fase De Maternidade

The challenge of large litters on the immune system of the sow and the piglets

Contact Info

Product

Resources

About