A Review of Nutritional and Metabolic Factors Involved in Dyschondroplasia in Poultry

Whitehead, C. C.

doi:10.1080/09712119.1998.9706669

Cited by 5 publications

(3 citation statements)

References 35 publications

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…Over the course of the last twenty years, reviews have summarised information relating to nutrition and skeletal disorders (Sauveur 1984;Leeson and Summers 1988;Edwards 1992Edwards , 2000Leach and Lilburn 1992;Orth and Cook 1994;Whitehead 1998). The scientific literature contains evidence that dietary content of eight vitamins, thirteen elements and six amino acids and protein and energy may be directly involved in leg disorders or skeletal problems in poultry (Edwards 2000).…”

Section: Nutritionmentioning

confidence: 99%

See 1 more Smart Citation

A Review of the Aetiology and Pathology of Leg Weakness in Broilers in Relation to Welfare

Bradshaw¹,

Kirkden²,

Broom³

2002

Avian & Poul. Biolog. Rev.

272

213

View full text Add to dashboard Cite

Leg disorders in broilers are a major economic and welfare problem. The aetiology of many disorders is complex but includes genetics, growth rate (due to feed restriction or lighting regime), feed conversion efficiency and body conformation, exercise, circadian rhythms, nutrition and stocking density. These categories are not mutually exclusive as one aetiological factor may affect another. Many studies of leg disorders fail to identify the specific pathological condition underlying the observed lameness. However, disorders may be classified according to underlying pathology as infectious, developmental and degenerative. This classification is difficult because these categories are not mutually exclusive. Infectious conditions include bacterial chondronecrosis with osteomyelitis (BCO or femoral head necrosis, FHN), tenosynovitis and arthritis, infectious stunting syndrome (ISS) and viral induced neoplasia. Developmental conditions include varus valgus disease (VVD), rotated tibia, tibial dyschondroplasia (TD), rickets, chondrodystrophy and spondylolisthesis. Degenerative disorders include osteochondrosis (often TD), epiphyseolosis (often classified as FHN), degenerative joint disease (DJD), spontaneous rupture of the gastrocnemius tendon and contact dermatitis. BCO, TD, dermatitis and VVD are the most common disorders. Outbreaks of leg disorders are often site / context specific. The welfare of broilers with leg disorders may be impaired due to pain from the condition, an inability to walk leading to frustration and associated problems of being unable to feed and drink due to immobility (which may result in starvation). In assessing welfare, the individual broiler must be considered irrespective of the frequency of occurrence of the disorder. Most studies of welfare in relation to leg disorders have used a subjective gait scoring method (0 is normal walking and 5 is unable to walk). Gait scoring is a practical method for assessing broiler lameness in the field. The method provides a useful tool to employ in the field without recourse to pathological investigation and, while the method conflates conformity with pathology, it is a helpful and constructive additional method to assist in welfare studies. For birds with scores greater than 3, lameness may be viewed as severe enough to potentially impair welfare. It is difficult to assess all disorders in relation to frequency of occurrence and their impact on welfare due lack of evidence. BCO (or FHN and BCN) is the most common disorder and is often severe in form. TD (incl. epiphyseolysis) and rickets is common, often sub-clinical but when severe is a considerable impact on welfare. Contact dermatitis may be common under certain conditions and causes poor welfare when severe. Gastrocnemius tendon slippage, tenosynovitis, DJD and spondylolisthesis are not so common but are likely to cause poor welfare when they occur (i.e. pain and prevention of certain behaviours). VVD and rotated tibia can be common but tend not to be directly painful unless another condition is pre...

show abstract

Section: Nutritionmentioning

confidence: 99%

“…Nutritional factors that influence incidence of TD include calcium to phosphorous ratio, chloride, electrolyte balance, 1,25-dihydroxy vitamin D3 (Praul et al 2000) and others, although an increasing number of them are being tied in with vitamin D3 metabolism (Whitehead 1998).…”

Section: Aetiologymentioning

confidence: 99%

A Review of the Aetiology and Pathology of Leg Weakness in Broilers in Relation to Welfare

Bradshaw¹,

Kirkden²,

Broom³

2002

Avian & Poul. Biolog. Rev.

272

213

View full text Add to dashboard Cite

show abstract

“…Dans l'ensemble, le poulet semble peu sensible aux fusariotoxines (DON, zéaralénone, moniliformine) naturellement retrouvées dans les céréales et leurs coproduits (Girgis et Smith 2010). Toutefois, un lien a été reporté avec la dyschondroplasie (Whitehead 1998).…”

Section: C) Toxicité Due à La Qualité Dégradée Des Matières Premièresunclassified

Gérer l’alimentation pour contribuer au bien-être des poulets de chair

Magnin¹,

Bouvarel

2011

INRA Prod. Anim.

View full text Add to dashboard Cite

La conduite alimentaire peut être impliquée dans l’apparition de troubles locomoteurs, digestifs et métaboliques susceptibles d’altérer le bien-être des poulets de chair. L’objectif de cette revue est de faire le point sur les différentes approches alimentaires et nutritionnelles permettant d’éviter l’apparition de ces désordres et donc d’évaluer la contribution de la gestion de l’alimentation au bien-être des poulets. Un pré-requis concernant l’alimentation des volailles est que les animaux reçoivent un aliment accessible, sain et équilibré, sachant qu’il n’est pas aisé de définir un besoin nutritionnel appliqué à un troupeau, avec des poulets sélectionnés sur la vitesse de croissance, cette sélection s’accompagnant d’effets qui peuvent paraître délétères vis-à-vis du bien-être animal avec une consommation d’aliment excessive et une faible activité. Différentes solutions alimentaires, parfois antagonistes, sont proposées pour améliorer le bien-être du poulet : adapter la composition et la présentation physique de l’aliment et enfin, jouer sur les modalités de distribution de l’aliment, permettant dans certains cas, d’enrichir leur milieu de vie. Néanmoins, au regard du bien-être animal, la conduite alimentaire n’est qu’un levier comme le sont la gestion de l’ambiance et le choix du génotype. S’il est clair que l’alimentation s’adapte à l’évolution de la génétique, son effet en matière de bien-être animal semble limité et une réflexion devrait porter sur une amélioration des capacités d’adaptation des poulets.

show abstract

Calcium homeostasis and vitamin D metabolism and expression in strongly calcifying laying birds

Bär

2008

Comparative Biochemistry and Physiology Part A: Molecular &

View full text Add to dashboard Cite

A Review of Nutritional and Metabolic Factors Involved in Dyschondroplasia in Poultry

Abstract: Whitehead, C.C. 1998. A review of nutritional and metabolic factors involved in dyschondroplasia in poultry.

Cited by 5 publications

References 35 publications

A Review of the Aetiology and Pathology of Leg Weakness in Broilers in Relation to Welfare

A Review of the Aetiology and Pathology of Leg Weakness in Broilers in Relation to Welfare

Gérer l’alimentation pour contribuer au bien-être des poulets de chair

Calcium homeostasis and vitamin D metabolism and expression in strongly calcifying laying birds

Contact Info

Product

Resources

About