Yıl:2022   Cilt: 8   Sayı: 1   Alan: Ziraat, Orman ve Su Ürünleri Temel Alanı

  1. Anasayfa
  2. Makale Listesi
  3. ID: 6

Zeyad Kamal IMARİ, Hayder Raheem ALNAJM, Rasha Ali JUDİ

Effect of Calcium to Phosphorus Ratio on Tibia Mineralization, Blood Metabolites and Carcass Traits of Broiler Chickens

The present study was performed to evaluate effect of calcium (Ca) to available phosphorus (AP) ratio on tibia mineralization, blood biochemical and carcass parameters. A total of 360 one-day-age broiler chicks Ross 308 was used. The birds were fed a basal diet from 1-10 day of age. On eleventh day of age, all birds divided to six dietary treatments where consisted of six levels of calcium (1.4, 1.2, 1, 0.8, 0.6 and 0.4%) with one level of available phosphorus (0.4%) thus were formed six ratios of Ca to AP (3.5:1, 3:1, 2.5:1, 2:1, 1.5:1, and 1:1). The results indicated that a high or low calcium to phosphorus ratio decreased the tibia ash percentage and concentration of calcium, phosphorus, and alkaline phosphatase in the blood. The tibia ash percentage was increased (P< 0.01) in the standard Ca: AP ratio group (2:1) compared with the high and low Ca: AP ratio groups (3.5:1, 3:1, 2.5:1, 1.5:1 and 1:1). The serum phosphorus level was decreased (P<0.05) in high Ca: AP ratio groups (3.5: 1 and 3: 1) compared to other ratio groups. Birds in the standard Ca: AP ratio group (2:1) had higher calcium and alkaline phosphatase levels in the blood compared to those in the high Ca: AP ratio groups (3.5: 1 and 3: 1) or those in the low Ca: AP ratio group (1:1). The length and width of tibia and the relative weight of the wing, heart, liver, and gizzard were not impacted by the different ratios of Ca: AP. while the relative weight of breast and leg quarter were higher (P<0.01) in the standard Ca: AP ratio group (2:1) when compared with other ratio groups. Our results indicate, that not only the level of dietary calcium and phosphorous had an important effect on the bird’s health, but the ratio of calcium to phosphorus also had a significant impact on the productive and physiological performance of birds.

Anahtar Kelimeler: Available phosphorus, broiler, ratio, calcium, edible viscera


Effect of Calcium to Phosphorus Ratio on Tibia Mineralization, Blood Metabolites and Carcass Traits of Broiler Chickens

The present study was performed to evaluate effect of calcium (Ca) to available phosphorus (AP) ratio on tibia mineralization, blood biochemical and carcass parameters. A total of 360 one-day-age broiler chicks Ross 308 was used. The birds were fed a basal diet from 1-10 day of age. On eleventh day of age, all birds divided to six dietary treatments where consisted of six levels of calcium (1.4, 1.2, 1, 0.8, 0.6 and 0.4%) with one level of available phosphorus (0.4%) thus were formed six ratios of Ca to AP (3.5:1, 3:1, 2.5:1, 2:1, 1.5:1, and 1:1). The results indicated that a high or low calcium to phosphorus ratio decreased the tibia ash percentage and concentration of calcium, phosphorus, and alkaline phosphatase in the blood. The tibia ash percentage was increased (P< 0.01) in the standard Ca: AP ratio group (2:1) compared with the high and low Ca: AP ratio groups (3.5:1, 3:1, 2.5:1, 1.5:1 and 1:1). The serum phosphorus level was decreased (P<0.05) in high Ca: AP ratio groups (3.5: 1 and 3: 1) compared to other ratio groups. Birds in the standard Ca: AP ratio group (2:1) had higher calcium and alkaline phosphatase levels in the blood compared to those in the high Ca: AP ratio groups (3.5: 1 and 3: 1) or those in the low Ca: AP ratio group (1:1). The length and width of tibia and the relative weight of the wing, heart, liver, and gizzard were not impacted by the different ratios of Ca: AP. while the relative weight of breast and leg quarter were higher (P<0.01) in the standard Ca: AP ratio group (2:1) when compared with other ratio groups. Our results indicate, that not only the level of dietary calcium and phosphorous had an important effect on the bird’s health, but the ratio of calcium to phosphorus also had a significant impact on the productive and physiological performance of birds.

Keywords: Available phosphorus, broiler, ratio, calcium, edible viscera


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