Commercial Poultry Production Stocking Density Influence on Bird Health and Performance Indicators

Bergeron, Stéphane; Pouliot, Emmanuelle; Doyon, Maurice

doi:10.3390/ani10081253

Cited by 15 publications

(16 citation statements)

References 11 publications

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“…High SD also harmed broiler chicks’ welfare and gut health in a subclinical trial as well as predisposed them to necrotic enteritis [ 21 ]. Foot-pad lesion and mortality rates are consistent with the previous findings [ 22 ]. Broiler chickens reared in 34 kg/m 2 SD spaces have the highest mortality, the poorest walking ability, and the highest hock burn and pododermatitis [ 12 ].…”

Section: Resultssupporting

confidence: 92%

Impacts of stocking density rates on welfare, growth, and hemato-biochemical profile in broiler chickens

Zabir¹,

Miah²,

Alam³

et al. 2021

J Adv Vet Anim Res

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Objective: The study investigated the effect of different stocking density (SD) rates on the welfare, growth, and hemato-biochemical parameters in broiler chickens. Materials and Methods: 106 broiler chicks of 10 days old were used and assigned into four groups: A, B, C, and D. The chicks of group A were reared in floor space containing one bird per square foot area (SD1.0). The chicks of groups B, C, and D were reared at 1.5, 2.0, and 2.5 birds per square foot area (SD1.5, SD2.0, and SD2.5). Welfare, body weight, and hemato-biochemical parameters were assessed and monitored by physical observation and laboratory methods. Results: The birds reared at SD2.0, and SD2.5 rates showed increased panting breathing. Wet feces adhered below the vent. There were a significant number of birds showing dirtiness of body and feathers. Birds reared in SD2.5 were familiar with moist litters and high ammonia smell. Foot-pad dermatitis, scratches, and blister formation were detected in the leg. The study revealed that the higher SD negatively correlated to the welfare behavior indicators. Live body weight was significantly ( p < 0.05) decreased in birds reared at higher SD rates. Birds housed in SD1.0 and SD1.5 are optimum for body weight and improved feed conversion ratio. The hemato-biochemical parameters of birds reared at various SD rates did not differ. The total leucocyte count increased significantly, while total serum proteins decreased gradually as SD rates increased. Conclusion: This work explores that higher SD negatively affects welfare and growth performance in broiler chickens.

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Section: Resultssupporting

confidence: 92%

Impacts of stocking density rates on welfare, growth, and hemato-biochemical profile in broiler chickens

Zabir¹,

Miah²,

Alam³

et al. 2021

J Adv Vet Anim Res

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“…High stocking density was associated (p<0.05) with increased condemnation for repugnant appearance and ascites as well as withoverall total condemnation. Stocking density is a crucial factor in the poultry industry; excessively high densities may affect animal health, yield (Bilal et al, 2021), biochemical parameters, reproductive performance (Ying et al, 2021), condemnation rates, and mortality (Bergeron et al, 2020), thereby leading to economic losses. It is difficult to establishthe optimal stocking density, given that this quantitative measure depends on qualitative factors, such as environmental and sanitary conditions.…”

Section: Relationship Between Pre-slaughter Factors and Major Causes ...mentioning

confidence: 99%

Relationship Between Pre-Slaughter Factors and Major Causes of Carcass Condemnation in a Broiler Slaughterhouse under Federal Inspection

Kanabata

Souza

Biz

et al. 2023

Braz. J. Poult. Sci.

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This study aimed to investigate the relationship between pre-slaughter factors and major causes of total or partial carcass condemnation in a broiler slaughterhouse under federal inspection. Data on total and partial carcass condemnations between 2018 and 2020 were collected from 10 broiler farms supplying a slaughterhouse located in northern Paraná State, Brazil. The total sample comprised 2,562,642 birds. The pre-slaughter factors analyzed were age at slaughter, stocking density, weight at slaughter, feed conversion, and mortality.Associations between causes of condemnation and pre-slaughter factors were analyzed using a generalized linear model with negative binomial distribution, a generalized linear model with quasi-Poisson distribution, and a generalized linear mixed model with Poisson distribution. Total carcass condemnations were mostly due to repugnant appearance (48.67%) and arthritis (26.56%), whereas partial carcass condemnations were mainly due to arthritis (31.02%), bruising (27.97%), and myopathies (15.18%). Mean age and stocking density were the preslaughter factors that most contributed to increasing total and partial condemnation rates, indicating that reducing stocking density and age at slaughter might be important strategies for minimizing economic losses associated with carcass condemnation.

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“…Parameters like LW, FCR and cost per bird were higher for small flocks in comparison to those for the medium and large flocks, whereas net profit per flock was in the order of large flocks > medium flocks > small flocks [2]. Similarly, daily weight gain, economic performance and bird welfare were found to be positively associated with the flocking density [3]. These findings conform to our results, where small farms produced higher LW, increased EW but lower ER as compared to the medium and large farms.…”

Section: Profitability Componentsmentioning

confidence: 85%

“…Productivity in terms of the number of live and marketable birds in meat producing, i.e., broiler commercial poultry enterprise, is usually associated with a number of factors such as farm size, bird age at selling, rearing seasons and mortality. Previous reports indicated that farm size greatly influences the productivity, profitability and sustainability of chicken farms [1][2][3]. Bird age, on the other hand, affects fecundity, fertility, hatchability, and hence the overall productivity of hens [4].…”

Section: Introductionmentioning

confidence: 99%

Productivity and Profitability Estimates for <i>Sonali</i> Chicken Farms in Rajshahi, Bangladesh

2021

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Season- and farm-wise productivity and mortality of Sonali chickens in 53 selected poultry farms from nine Upozillas of Rajshahi District during December 2018 and November 2019 were assessed. Results revealed that, on average, small farms produced 775, medium farms 1828 and large farms 3442 marketable live birds. Mortality was recorded in the following order: small farms > medium farms > large farms. Highest number of birds was produced in spring followed by winter, summer and rainy season, whereas the highest mortality was recorded in winter followed by rainy, summer and spring. Birds reared in smaller farms consumed greater amount of feed compared to those reared in larger farms. Consequently, the live weights, edible weights and edible ratios of the chickens differed significantly due to the farm size. Season-wise variations were significant for day-old chick price, gross return per bird and benefit-cost ratio. Farm-wise variations in the profitability components demonstrated that all the components of the large farms were significantly higher than those of the medium and small farms. With regard to the commercial poultry enterprise of the country, therefore, the present findings on Sonali chicken farming in Rajshahi District are quite encouraging from productivity, profitability and sustainability points of views.

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Commercial Poultry Production Stocking Density Influence on Bird Health and Performance Indicators

Cited by 15 publications

References 11 publications

Impacts of stocking density rates on welfare, growth, and hemato-biochemical profile in broiler chickens

Impacts of stocking density rates on welfare, growth, and hemato-biochemical profile in broiler chickens

Relationship Between Pre-Slaughter Factors and Major Causes of Carcass Condemnation in a Broiler Slaughterhouse under Federal Inspection

Productivity and Profitability Estimates for <i>Sonali</i> Chicken Farms in Rajshahi, Bangladesh

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