Comparison of techniques for tibial dyschondroplasia assessment in broiler chickens

Paz, Ibiara Correia de Lima Almeida; Mendes, Ariel Antônio; Takita, Tânia Sayuri; Vulcano, Luiz Carlos; Guerra, PC; Wechsler, Francisco Stéfano; Garcia, Rodrigo Arroyo; Takahashi, Sabrina Endo; Moreira, Joerley; Pelícia, K; Komiyama, Cláudia Marie; Quinteiro, RR

doi:10.1590/s1516-635x2005000100005

Cited by 15 publications

(1 citation statement)

References 11 publications

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…Essa deformidade esquelética pode ser explicada através das características genéticas destes animais, em que a ave apresenta um crescimento e acúmulo de tecido muito rápido, com o tecido ósseo se desenvolvendo a uma velocidade menor (SILVA et al, 2001). Dentre os problemas locomotores, a discondroplasia tibial e a degeneração femoral são as principais anomalias associadas às causas do problema, A incidência de ambas é muito alta, afetando 50 a 80% dos lotes (ALMEIDA PAZ et al, 2005).…”

Section: Locomoçãounclassified

Efeito de diferentes sistemas de vedação de aviários no comportamento e bem estar de frangos de corte

Vercellino¹,

Moura²

View full text Add to dashboard Cite

À minha família, a Deus, aos animais de criação: dedico este trabalho. Sem o incentivo e força da família e de Deus, nada disto seria conquistado. E sem a existência dos animais de criação, não existiria a minha paixão e a minha vontade de contribuir, de forma positiva, para suas vidas.v AGRADECIMENTOS À Deus, pelo amor, força e pela coragem que me forneceu e fornece para continuar trilhando meu caminho, perante as dificuldades.À toda minha família, em especial aos meus avós José e Marly, mãe, Rossane, irmãs, Ravena e Rebeca, primas, Tamara e Thaiza, e tios, Rejane e Marcos, que sempre acreditaram em mim, me incentivaram e foram as razões das minhas conquistas.Aos animais, vulgo filhos, de estimação, Ralph, Zara e Khaled, pela companhia e lealdade, e aos milhões de gatos do Gatil Barakiáh, pela curiosidade e distração que me proporcionaram, quando estava num momento de plena concentração.Aos amigos do meio profissional,

show abstract

Section: Locomoçãounclassified

Efeito de diferentes sistemas de vedação de aviários no comportamento e bem estar de frangos de corte

Vercellino¹,

Moura²

View full text Add to dashboard Cite

show abstract

Equilibrium Condition during Locomotion and Gait in Broiler Chickens

Alves

Paz

Nääs

et al. 2016

Rev. Bras. Cienc. Avic.

Self Cite

View full text Add to dashboard Cite

The experiment was carried out with the objective of evaluating a methodology to estimate the angulation and equilibrium condition, relating them to gait score and the main diseases of the locomotion system in males and females of commercial broiler strains. A completely randomized experimental design in a factorial arrangement (2x2) was applied, consisting of two sexes and two genetic strains, with five replicates of 53 chickens each. The following characteristics related to broiler locomotion were studied: gait score (GS); incidence of Valgus (VAL) and Varus (VAR) deformities and of pododermatitis (POD); body angle relative the ground (ANG); equilibrium condition (EC); body weight (BW) and breast weight (BrW); and incidence of femoral degeneration (FD), tibial dyschondroplasia (TD) and spondylolisthesis (SPO). GS, and VAL and VAR were assessed inside a broiler house. Birds were then photographed to estimate ANG and EC. Birds were sacrificed at 42 days of age and analyzed for FD, TD, and SPO. Breast percentage was not influenced by sex or strain. Males showed better ANG than females, regardless of strain. Overall, the strains studied showed prostrated EC. The correlation between GS and the evaluated traits was low. There was a moderate to high association between EC and ANG both in males and females. GS showed low correlation with locomotion problems, and therefore, it is a poor indicator of skeletal diseases. On the other hand, the moderate to high correlations of ANG and EC with locomotion problems make them better indicators of bone diseases than gait score, which is possibly more related to EC and body posture than to bone pathologies.

show abstract

Photogrammetry: a Non-Invasive and Objective Method for Detecting Locomotion Problems in Broiler Chickens

Mendes

Paixão

Sikorski

et al. 2016

Rev. Bras. Cienc. Avic.

View full text Add to dashboard Cite

Locomotion problems in broiler chickens can cause economic losses of up to 40% of the total revenues due to carcass condemnation and downgrading at processing. Leg disorders, such as femoral lesions, tibial dyschondroplasia, and spondylolisthesis, substantially impact the welfare of chickens as these disorders can prevent birds from reaching the feeders and drinkers, thus reducing feed and water intake. The most important issues related to broiler welfare reported in the last two decades are their growing sensitivity to metabolic and locomotion problems due to the fast growth rates and inactivity. Traditional methods for the determination of gait score include the manual scoring of animal behavior in the broiler house. Recorded video images can also be used for manual scoring of chicken gait score. However, scoring of some animal-based information by human experts and manual methods remain difficult, time consuming and expensive when implemented at farm level. In an effort to objectively detect leg disorders, this study aimed at validating the photogrammetry technique as a non-invasive method for identifying locomotion problems in broilers. Photogrammetry allows determining the geometric properties of broilers from digital photos that are processed and analyzed using a computer software. Results obtained using photogrammetry were tested for their correlation with those obtained by accepted methodologies, including gait score and macroscopic examination of femoral degeneration and tibial dyschondroplasia. The photogrammetry results agreed with the results of the afore mentioned accepted methods.

show abstract

Comparison of techniques for tibial dyschondroplasia assessment in broiler chickens

Cited by 15 publications

References 11 publications

Efeito de diferentes sistemas de vedação de aviários no comportamento e bem estar de frangos de corte

Efeito de diferentes sistemas de vedação de aviários no comportamento e bem estar de frangos de corte

Equilibrium Condition during Locomotion and Gait in Broiler Chickens

Photogrammetry: a Non-Invasive and Objective Method for Detecting Locomotion Problems in Broiler Chickens

Contact Info

Product

Resources

About