<abstract xmlns="http://www.w3.org/1999/xhtml"><p>A 35-day experiment was carried out to study the effects of acidified and alkalinized diets on zootechnical indices, tibial calcium and phosphorous retention, bone mineralization and liver enzymes activity using 250 Ross 308 male broiler chicks. Five treatments consisting of a control diet (CD), CD acidified using 10, 20 and 30 g/kg citric acid (CA) and CD alkalinized with Ca (OH)<sub>2</sub> (8.9 g/kg in growth period and 8.6 g/kg in finisher period) were examined in 5 replicates of 10 birds each from day 7 up to day 42 of age. Inclusion of 30 g/kg CA significantly increased body weight, average daily gain (ADG), average daily feed intake (ADFI), feed efficiency, tibia ash, tibia Ca content, at day 42 of age (P&lt;0.05). Serum alkaline phosphatase and lactate dehydrogenase activities were elevated in the birds fed with the 30 g/kg CA-treated diet at day 42 of age (P&lt;0.05). Alkalinized diet significantly reduced ADFI, tibia ash, tibial P and Ca contents, bone breaking strength and plasma Ca concentration (P&lt;0.05). It was concluded that the diet acidified with 30 g/kg CA promoted productive performance and tibia mineralization in broiler chicken. Alkalinized diet suppressed growth performance of the birds perhaps through disrupted mineral absorption and altered liver enzymes activity.</p></abstract>

A 35-day experiment was carried out to study the effects of acidified and alkalinized diets on zootechnical indices, tibial calcium and phosphorous retention, bone mineralization and liver enzymes activity using 250 Ross 308 male broiler chicks. Five treatments consisting of a control diet (CD), CD acidified using 10, 20 and 30 g/kg citric acid (CA) and CD alkalinized with Ca (OH)2 (8.9 g/kg in growth period and 8.6 g/kg in finisher period) were examined in 5 replicates of 10 birds each from day 7 up to day 42 of age. Inclusion of 30 g/kg CA significantly increased body weight, average daily gain (ADG), average daily feed intake (ADFI), feed efficiency, tibia ash, tibia Ca content, at day 42 of age (P<0.05). Serum alkaline phosphatase and lactate dehydrogenase activities were elevated in the birds fed with the 30 g/kg CA-treated diet at day 42 of age (P<0.05). Alkalinized diet significantly reduced ADFI, tibia ash, tibial P and Ca contents, bone breaking strength and plasma Ca concentration (P<0.05). It was concluded that the diet acidified with 30 g/kg CA promoted productive performance and tibia mineralization in broiler chicken. Alkalinized diet suppressed growth performance of the birds perhaps through disrupted mineral absorption and altered liver enzymes activity.

Effects on Productive Performance, Tibia Calcium and Phosphorous Retention, and Liver Enzymes Activity of Acidified and Alkalinized Diets in Broiler Chicken

Department of Animal Sciences, Lorestan University, P.B. 465, Khorramabad 68137-17133, Lorestan, Iran

Department of Animal Sciences, University of Birjand, P.B. 331/97175, Birjand, Iran

Department of Animal Sciences, Malayer University, Malayer 65719-95863, Iran

Annals of Animal Science

This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 3.0 License.

A 35-day experiment was carried out to study the effects of acidified and alkalinized diets on zootechnical indices, tibial calcium and phosphorous retention,...

Effects on Productive Performance, Tibia Calcium and Phosphorous Retention, and Liver Enzymes Activity of Acidified and Alkalinized Diets in Broiler Chicken

Published Online: Aug 02, 2016

Page range: 797 - 809

Received: Apr 04, 2015

Accepted: Jan 27, 2016

DOI: https://doi.org/10.1515/aoas-2016-0001

Keywords
citric acid, broiler chicken, alkalinized diet, tibia mineral retention

© 2016 Rouhollah Nourmohammadi et al., published by De Gruyter Open

This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 3.0 License.

Effects on Productive Performance, Tibia Calcium and Phosphorous Retention, and Liver Enzymes Activity of Acidified and Alkalinized Diets in Broiler Chicken

Published Online: Aug 02, 2016

Page range: 797 - 809

Received: Apr 04, 2015

Accepted: Jan 27, 2016

DOI: https://doi.org/10.1515/aoas-2016-0001

Keywordscitric acid, broiler chicken, alkalinized diet, tibia mineral retention

© 2016 Rouhollah Nourmohammadi et al., published by De Gruyter Open

This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 3.0 License.

Keywords
citric acid, broiler chicken, alkalinized diet, tibia mineral retention