Laying hens under smallholder conditions: laying performance, growth and bone quality of tibia and femur including essential elements

Kraus, Adam; Krunt, Ondřej; Zita, Lukáš; Vejvodová, Kateřina; Drábek, Ondřej

doi:10.1016/j.psj.2022.101927

Cited by 4 publications

(8 citation statements)

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“…Bone quality is defined not only by the Ca content but also by the P content, which is in close relationship with Ca and necessary for bone structure (Kraus et al., 2022 ). In terms of the amount of P per unit body weight, it was found to be higher in those who developed rapidly at the age of 1 week ( p < 0.05).…”

Section: Resultsmentioning

confidence: 99%

“…Tibia, the main long bones in broiler legs, carry the bird's body weight (Evaris et al., 2019 ). The tibia belongs to the most mineralized group of bones, and therefore it is often used as an indicator of overall skeletal mineralization, so when the bone quality is measured, the tibia is typically used (Kraus et al., 2022 ). Bone strength is determined not only by the volume of bone tissue and the bone measurements but also by the mineralization of the bone.…”

Section: Introductionmentioning

confidence: 99%

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Tibia properties in broilers raised on their own commercial diets with different growth rates and sex during a 10‐week rearing period

Çapar Akyüz,

Onbaşılar,

Yalçın

2024

Veterinary Medicine & Sci

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BackgroundGenetic selection applied to broilers results in fast growth and an increase in meat yield. However, this situation causes welfare problems in broilers.ObjectivesThe aim of this study is to determine the weekly changes in the tibia characteristics in broilers raised on their own commercial diets.MethodsIn the study, 168 (84 female and 84 male) slow‐growing (Hubbard‐Isa Red JA) and 168 (84 female and 84 male) fast‐growing (Ross‐308) day‐old broiler chicks were used. Six broilers from each genotype and sex group were weighed weekly and slaughtered to determine the tibia properties during the 10‐week fattening period.ResultsFast‐growing broilers had higher tibia weight and longer length, diaphysis diameter and medullary canal diameter than those of slow‐growing broilers at the same age. In fast‐growing genotypes, the cortical index was low only in the 2nd week, and Robusticity and Seedor indices were observed to be better throughout the whole fattening. The ash content of the total tibia in the fast‐growing broilers was higher in all of the examined weeks except the 4th week and the 9th week of fattening than that in the slow‐growing broilers. Although the amount of ash per unit body weight in the 1st week of fattening was higher in fast‐growing broilers, this situation reversed after the 4th week. The level of all minerals examined in total tibia weight is high in fast‐growing broilers, and they differed according to the fattening period.ConclusionsWhen comparing tibia characteristics of two different genotypes fed their own commercial diets, the tibia structure was found to be stronger in fast‐growing broilers compared to other genotypes at the same age, but slow‐growing broilers were more prominent in terms of body weight. It was observed that the mineral density was higher in male broilers, except in the 1st week.

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Section: Resultsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Tibia properties in broilers raised on their own commercial diets with different growth rates and sex during a 10‐week rearing period

Çapar Akyüz,

Onbaşılar,

Yalçın

2024

Veterinary Medicine & Sci

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show abstract

“… Meng et al (2017) reported a similar finding, indicating that the type of cage had no influence on tibial length. Prior research had demonstrated that tibial characteristics were related to factors such as breeds ( Kraus et al, 2022 ), feed intake ( Forgiarini et al, 2022 ), and stocking density ( Pereira et al, 2021 ). Individual differences in the flock and early skeletal development may be the reason for the substandard tibial lengths of hens in the 1st tier.…”

Section: Discussionmentioning

confidence: 99%

Spatial distribution, movement, body damage, and feather condition of laying hens in a multi-tier system

Yin,

Tong,

et al. 2024

Poultry Science

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“…To optimize animal well-being while maintaining productive performance, it is crucial to focus on housing conditions [4]. One significant aspect of welfare is bone quality, which has been studied in various animal species, including rabbits [14], laying hens [15], and ducks [8]. Poor bone quality can lead to fractures and osteoporosis, posing a significant challenge in poultry.…”

Section: Introductionmentioning

confidence: 99%

The Impact of Different Environments on Productive Performance, Welfare, and the Health of Muscovy Ducks during the Summer Season

et al. 2023

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The objective of this research was to evaluate the influence of the housing system (deep litter [DL] vs. deep litter with swimming pond [DLSP]) on productive performance, carcass traits, body temperature, blood profile, and the element composition of the femur and tibia in Muscovy ducks. At 5 weeks of age, sexed ducklings (264) were divided into 4 equal groups according to housing system and gender (drakes vs. ducks). The groups were as follows: 66 drakes/DL, 66 drakes/DLSP, 66 ducks/DL, and 66 ducks/DLSP. Each of the four groups was divided into three identical replicated subgroups of 22 animals. Regarding external body temperature, the DL birds had higher temperatures compared with the DLSP birds. In addition, drakes had lower temperature values than ducks. Regarding the blood analysis, the birds did not manifest any deviations in the biochemical traits of the blood. The DLSP birds had greater live weight, weight gain, and feed conversion ratio, but a lower proportion of breast meat than the DL birds. The housing conditions did not affect the fracture toughness of the tibia and femur of the birds; however, Muscovy ducks from the DLSP group had more Ca and Mg in the tibia and more Mg in the femur compared with the DL birds.

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Laying hens under smallholder conditions: laying performance, growth and bone quality of tibia and femur including essential elements

Cited by 4 publications

References 62 publications

Tibia properties in broilers raised on their own commercial diets with different growth rates and sex during a 10‐week rearing period

Tibia properties in broilers raised on their own commercial diets with different growth rates and sex during a 10‐week rearing period

Spatial distribution, movement, body damage, and feather condition of laying hens in a multi-tier system

The Impact of Different Environments on Productive Performance, Welfare, and the Health of Muscovy Ducks during the Summer Season

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