Life cycle changes in bone mineralization and bone size traits of commercial broilers

Talaty, Pooja; Katanbaf, M. N.; Hester, P. Y.

doi:10.3382/ps.2008-00418

Cited by 43 publications

(38 citation statements)

References 22 publications

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“…This result is consistent with that reported by Barreiro et al (2009). Talaty et al (2009) also found that chicks exhibited the greatest tibia mineral density at 28 d of age. Similarly to ash content, metatarsus Ca content linearly increased with age.…”

Section: Bone Ca Contentsupporting

confidence: 83%

Comparison of the Growth and Mineralization of the Femur, Tibia, and Metatarsus of Broiler Chicks

Han

Wang

et al. 2015

Rev. Bras. Cienc. Avic.

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This study aimed at comparing the growth and mineralization of the femur, tibia, and metatarsus of male and female broiler chicks. On the day of hatch, 100 male and 100 female Ross 308 broiler chicks were transferred stainless cages with 10 birds per cage. On d 7, 14, 21, 28, 35, and 42, five males and five females were sacrificed and their femur, tibia, and metatarsus were collected. Results showed that the tibia was the heaviest and the longest and contained the highest content of ash and calcium (Ca) among the three leg bones. The femur had the greatest diameter. The weight, length, diameter, and ash weight of the femur, tibia, and metatarsus linearly increased with age. The ash, Ca, and phosphorus (P) content in the femur and the tibia quadratically increased with age; by contrast, these parameters in the metatarsus linearly increased with age. The bones grew faster in 1 to 21 d of age. The weight, diameter, and ash weight of the three bones of males were higher than those of females. The Ca to P ratio of the three bones (femur, tibia, and metatarsus) was approximately 2.0:1. These data indicate that there are differences in bone growth and mineralization among the femur, tibia, and metatarsus of male or female broiler chicks.

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Section: Bone Ca Contentsupporting

confidence: 83%

Comparison of the Growth and Mineralization of the Femur, Tibia, and Metatarsus of Broiler Chicks

Han

Wang

et al. 2015

Rev. Bras. Cienc. Avic.

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“…A similar observation was reported by McDevitt et al (2006), who notes that dry bone weight and mineral content per unit length of modern broiler strains increase in direct proportion to the increase in BW. In contrast, inadequate dietary sources of Ca result in blood hypocalcaemia, leading to reduced bone strength and mineralization (Talaty et al, 2009a).…”

Section: Resultsmentioning

confidence: 99%

“…A high molar Ca : phytate ratio in the diet may lead to the formation of extremely insoluble Ca-phytate complexes under intestinal conditions, making the phytate molecule inaccessible to the phytase enzyme (Kornegay, 1999). Inadequate dietary sources of calcium result in blood hypocalcaemia, leading to reduced bone strength and mineralization (Talaty et al, 2009a). Typically, supplementation of the phytase enzyme in grain-based poultry diets has become common practice to increase phosphorus bioavailability by 25% -50%, reduce phosphorus excretion by 15% -40%, and ensure proper growth and bone development (Harter-Dennis, 1999;Onyango et al, 2006;Coon & Manangi, 2008).…”

Section: Introductionmentioning

confidence: 99%

“…In modern meat-type chickens, bone strength and development are closely linked to the expression of genetic potential for maximum lean muscle deposition (Williams et al, 2004). Thus, the increase in dry bone weight and mineral content per unit bone length responds to mechanical forces placed on the bone (McDevitt et al, 2006;Whitehead, 2007;Talaty et al, 2009a). Skeletal integrity of broiler chickens has become a welfare and economic concern (Williams et al, 2004;Almeida Paz & Bruno, 2006;Fleming, 2008).…”

Section: Introductionmentioning

confidence: 99%

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The effect of <i>Moringa oleifera</i> leaf meal supplementation on tibia strength, morphology and inorganic content of broiler chickens

Nkukwana¹,

Muchenje²,

Masika³

et al. 2014

SA J. An. Sci.

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This study was conducted to assess the effects of dietary Moringa oleifera leaf meal (MOLM) supplementation as a possible alternative to antibiotic growth promoters on bone breaking strength (BBS), tibia bone morphology and inorganic ash content in broiler chickens. A total of 2400 one-day-old Cobb-500 broiler chicks of mixed sex were randomly allocated to five dietary treatments in six replications of 80 birds per pen. Dietary treatments were as follows: T1, positive control, 668 g salinomycin and 500 g zinc bacitracin per kg of feed; T2, T3 and T4, graded levels of MOLM, that is (starter (1, 3 and 5 g), grower (3, 9 and 15 g) and finisher (5, 15 and 25 g)) per kg of feed; and T5, a negative control (without supplementation). Birds were provided with feed and water ad libitum. Bodyweights (BW) and feed intake (FI) of broilers were measured weekly, and feed conversion ratio (FCR) and average daily gains were calculated accordingly. At 35 days (d) of age, 12 birds per treatment, two from each replicate pen, were randomly selected, stunned electrically at 70 volts, and slaughtered by cervical dislocation. Six left and right tibiae were randomly chosen from each treatment, without being de-fleshed, and were sealed individually in plastic bags to minimize moisture loss. The tibiae were stored at −18 ºC for BBS and tibia ash determination, as well as analyses of their calcium (Ca) and phosphorus (P) composition. Of birds fed diets with higher MOLM levels, T4 had the highest BW, while T1 had the lowest. On days 7 and 21, birds on T4 had the highest average daily gain (ADG) and T1 the lowest, respectively. There were no significant dietary effects in FI on days 7, 21 and 35; while on days 21 and 35, FCR (feed : gain) was highest in MOLM-supplemented birds and lowest in T1 birds, respectively. There were no treatment effects on tibia length (TL), tibia weight (TW) and/or dried tibia weight (DW). A positive correlation (r = 0.667) was observed between TW and DW. There were no treatment effects on BBS and ash percentage, but tibia ash weight was highest in T4 and lowest in T2. Calcium percentage was highest in T1, and lowest in T2 and T5. Phosphorus percentage was lowest in T1 and highest in T5. The highest Ca : P ratio was obtained in T4. The positive correlation observed between BW, TW and TL, and the high P, Ca and ash levels in tibiae from MOLM-supplemented birds depicts the genetic relationship that exists among these parameters. Furthermore, it reveals the effectiveness of MOLM supplementation to enhance nutrient utilization efficiency, increase mineral bioavailability and support bone strength.

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“…Conventional intensive production conditions do not allow sufficient exercise and typically present poor hygiene, resulting in leg weakness and skin infections (Bessei, 2006;Talaty et al, 2009). It has been demonstrated that the bones of fast growing meat-type chickens are often abnormally developed, and present high porosity and much lower density than those of slow-growing broilers (Bennett, 2008;Williams et al, 2004).…”

Section: Introductionmentioning

confidence: 99%

Edible Giblets and Bone Mineral Characteristics of Two Slow-Growing Chicken Genotypes Reared in an Organic System

Eleroğlu

Yıldırım

Duman

et al. 2017

Rev. Bras. Cienc. Avic.

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This study was conducted to compare edible giblets weight, tibial bone mineral density (BMD), and bone mineral content (BMC) of two slow-growing broiler genotypes (Hubbard S757; S757 and Hubbard Grey Barred JA; GB-JA) reared with outdoor access, and to determine the relationship between these variables. Day-old chicks (straight-run) of the genotypes S757 (n=120) and GB-JA (n=120) were housed for 98 days. Each genotype was assigned to six pens of 20 birds each. Birds were reared in indoor floor pens and moving shelters with outdoor access (during daylight hours). Absolute body (BW), heart (HW), spleen (SW), liver (LW), gizzard (GW), and abdominal fat pad (AFW) weights of the genotype S757 and male birds were statistically higher than that of the genotype GB-JA and female birds. Genotype statistically affected relative HW, whereas sex affected relative GW. Although BMD values were not influenced by genotype or sex, S757 birds and males presented statistically higher tibial BMC, lean, lean+BMC, total mass values (g) and area (cm 2 ) compared with GB-JA birds and females. BW, HW, SW, LW, GW and AFW were positively correlated with BMC obtained by DXA. In conclusion, the measured traits influenced by genetic strain and sex. The use of the Hubbard S757 genotype in organic production systems with outdoor access is recommend.

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Life cycle changes in bone mineralization and bone size traits of commercial broilers

Cited by 43 publications

References 22 publications

Comparison of the Growth and Mineralization of the Femur, Tibia, and Metatarsus of Broiler Chicks

Comparison of the Growth and Mineralization of the Femur, Tibia, and Metatarsus of Broiler Chicks

The effect of <i>Moringa oleifera</i> leaf meal supplementation on tibia strength, morphology and inorganic content of broiler chickens

Edible Giblets and Bone Mineral Characteristics of Two Slow-Growing Chicken Genotypes Reared in an Organic System

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