BONE DEVELOPMENT OF BROILER CHICKENS FED DIETS WITH DIFFERENT AMINO ACID AND CALCIUM LEVELS DURING THE STARTER PHASE
Two experiments were conducted in order to evaluate the effects of different dietary amino acid and calcium profiles on the bone characteristics of two chicken strains (Avian Farms and Cobb) during the starter phase. At the end of each experiment, 2 chickens of each replicate were sacrificed and the...
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| Lenguaje: | English |
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Sociedad Chilena de Anatomía
2003
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oai:scielo:S0717-950220030002000012005-09-13BONE DEVELOPMENT OF BROILER CHICKENS FED DIETS WITH DIFFERENT AMINO ACID AND CALCIUM LEVELS DURING THE STARTER PHASESoares da Silva Araújo,CristianeMartinez Baraldi Artoni,SilvanaFrancelino Araújo,LúcioJeferson Quirino Lousada,MárioMack Junqueira,OttoRoque Rodriguez,Anita Isabel Amino acid Bone density Broiler chickens Calcium Two experiments were conducted in order to evaluate the effects of different dietary amino acid and calcium profiles on the bone characteristics of two chicken strains (Avian Farms and Cobb) during the starter phase. At the end of each experiment, 2 chickens of each replicate were sacrificed and their tibiae were collected for analysis of following bone characteristics: bone measurements (weight, length and thickness of the compact and spongy layers) and bone density (bone densitometry). A total of 540 birds were used in each experiment, divided into fully randomized blocks with a 3 x 2 factorial schemes, i. e., 3 amino acid profiles (methionine, lysine and threonine ­ 100%, 125% and 150% of NRC recommendations, 1994) and 2 calcium levels (75% and 100% of NRC recommendations, 1994), with 30 birds per replicate. Birds of the Cobb strains fed 75% of the recommended calcium allowance showed lower bone density. Calcium level significantly affected the weight and thickness of the spongy layer of the tibia. In birds of the Avian strain, bone density and measurements were not affected by any of the experimental treatmentsinfo:eu-repo/semantics/openAccessSociedad Chilena de AnatomíaInternational Journal of Morphology v.21 n.2 20032003-01-01text/htmlhttp://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0717-95022003000200001en10.4067/S0717-95022003000200001 |
| institution |
Scielo Chile |
| collection |
Scielo Chile |
| language |
English |
| topic |
Amino acid Bone density Broiler chickens Calcium |
| spellingShingle |
Amino acid Bone density Broiler chickens Calcium Soares da Silva Araújo,Cristiane Martinez Baraldi Artoni,Silvana Francelino Araújo,Lúcio Jeferson Quirino Lousada,Mário Mack Junqueira,Otto Roque Rodriguez,Anita Isabel BONE DEVELOPMENT OF BROILER CHICKENS FED DIETS WITH DIFFERENT AMINO ACID AND CALCIUM LEVELS DURING THE STARTER PHASE |
| description |
Two experiments were conducted in order to evaluate the effects of different dietary amino acid and calcium profiles on the bone characteristics of two chicken strains (Avian Farms and Cobb) during the starter phase. At the end of each experiment, 2 chickens of each replicate were sacrificed and their tibiae were collected for analysis of following bone characteristics: bone measurements (weight, length and thickness of the compact and spongy layers) and bone density (bone densitometry). A total of 540 birds were used in each experiment, divided into fully randomized blocks with a 3 x 2 factorial schemes, i. e., 3 amino acid profiles (methionine, lysine and threonine ­ 100%, 125% and 150% of NRC recommendations, 1994) and 2 calcium levels (75% and 100% of NRC recommendations, 1994), with 30 birds per replicate. Birds of the Cobb strains fed 75% of the recommended calcium allowance showed lower bone density. Calcium level significantly affected the weight and thickness of the spongy layer of the tibia. In birds of the Avian strain, bone density and measurements were not affected by any of the experimental treatments |
| author |
Soares da Silva Araújo,Cristiane Martinez Baraldi Artoni,Silvana Francelino Araújo,Lúcio Jeferson Quirino Lousada,Mário Mack Junqueira,Otto Roque Rodriguez,Anita Isabel |
| author_facet |
Soares da Silva Araújo,Cristiane Martinez Baraldi Artoni,Silvana Francelino Araújo,Lúcio Jeferson Quirino Lousada,Mário Mack Junqueira,Otto Roque Rodriguez,Anita Isabel |
| author_sort |
Soares da Silva Araújo,Cristiane |
| title |
BONE DEVELOPMENT OF BROILER CHICKENS FED DIETS WITH DIFFERENT AMINO ACID AND CALCIUM LEVELS DURING THE STARTER PHASE |
| title_short |
BONE DEVELOPMENT OF BROILER CHICKENS FED DIETS WITH DIFFERENT AMINO ACID AND CALCIUM LEVELS DURING THE STARTER PHASE |
| title_full |
BONE DEVELOPMENT OF BROILER CHICKENS FED DIETS WITH DIFFERENT AMINO ACID AND CALCIUM LEVELS DURING THE STARTER PHASE |
| title_fullStr |
BONE DEVELOPMENT OF BROILER CHICKENS FED DIETS WITH DIFFERENT AMINO ACID AND CALCIUM LEVELS DURING THE STARTER PHASE |
| title_full_unstemmed |
BONE DEVELOPMENT OF BROILER CHICKENS FED DIETS WITH DIFFERENT AMINO ACID AND CALCIUM LEVELS DURING THE STARTER PHASE |
| title_sort |
bone development of broiler chickens fed diets with different amino acid and calcium levels during the starter phase |
| publisher |
Sociedad Chilena de Anatomía |
| publishDate |
2003 |
| url |
http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0717-95022003000200001 |
| work_keys_str_mv |
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| _version_ |
1718444547097231360 |