scholarly journals Anatomical and biomechanical traits of broiler chickens across ontogeny. Part II. Body segment inertial properties and muscle architecture of the pelvic limb

PeerJ ◽  
2014 ◽  
Vol 2 ◽  
pp. e473 ◽  
Author(s):  
Heather Paxton ◽  
Peter G. Tickle ◽  
Jeffery W. Rankin ◽  
Jonathan R. Codd ◽  
John R. Hutchinson
Keyword(s):  
Broiler Chickens ◽  
Muscle Architecture ◽  
Body Segment ◽  
Pelvic Limb

scholarly journals Anatomical and biomechanical traits of broiler chickens across ontogeny. Part II. Body segment inertial properties and muscle architecture of the pelvic limb

2014 ◽  
Author(s):  
Heather Paxton ◽  
Peter G Tickle ◽  
Jeffery W Rankin ◽  
Jonathan R Codd ◽  
John R Hutchinson
Keyword(s):  
Broiler Chickens ◽  
Age Groups ◽  
Growth Period ◽  
Muscle Architecture ◽  
Whole Body ◽  
Energetic Cost ◽  
Activity Levels ◽  
Production Traits ◽  
Fascicle Length ◽  
Pelvic Limb

In broiler chickens, genetic success for desired production traits is often shadowed by welfare concerns related to musculoskeletal health. Whilst these concerns are clear, a viable solution is still elusive. Part of the solution lies in knowing how anatomical changes in afflicted body systems that occur across ontogenyinfluence standing and moving. Here, to demonstrate these changes we quantify the segment inertial properties of the whole body, trunk (legs removed) and the right pelvic limb segments of five broilers at three different age groups across development. We also consider how muscle architecture (mass, fascicle length and other properties related to mechanics) changes for selected muscles of the pelvic limb. Wholelimb morphology is not uniform relative to body size, with broilers obtaining large thighs and feet between four and six weeks of age. This implies that the energetic cost of swinging the limbs is markedly increased across this growth period, perhaps contributing to reduced activity levels. Hindlimb bone length does not change during this period, which may be advantageous for increased stability despite the increased energetic costs. Increased pectoral muscle growth appears to move the centre of mass cranio-dorsally in the last two weeks of growth. This has direct consequences for ventilation (heavier sterna apparatus must be moved with each breath) and locomotion (potentially greater limb muscle stresses during standing andmoving). Our study is the first to measure these changes in the musculoskeletal system across growth in chickens, and reveals how artificially selected changes of the morphology of the pectoral apparatus may cause deficits in locomotion, as well as breathing.

scholarly journals Anatomical and biomechanical traits of broiler chickens across ontogeny. Part II. Body segment inertial properties and muscle architecture of the pelvic limb

2014 ◽  
Author(s):  
Heather Paxton ◽  
Peter G Tickle ◽  
Jeffery W Rankin ◽  
Jonathan R Codd ◽  
John R Hutchinson
Keyword(s):  
Broiler Chickens ◽  
Age Groups ◽  
Growth Period ◽  
Muscle Architecture ◽  
Whole Body ◽  
Energetic Cost ◽  
Activity Levels ◽  
Production Traits ◽  
Fascicle Length ◽  
Pelvic Limb

In broiler chickens, genetic success for desired production traits is often shadowed by welfare concerns related to musculoskeletal health. Whilst these concerns are clear, a viable solution is still elusive. Part of the solution lies in knowing how anatomical changes in afflicted body systems that occur across ontogenyinfluence standing and moving. Here, to demonstrate these changes we quantify the segment inertial properties of the whole body, trunk (legs removed) and the right pelvic limb segments of five broilers at three different age groups across development. We also consider how muscle architecture (mass, fascicle length and other properties related to mechanics) changes for selected muscles of the pelvic limb. Wholelimb morphology is not uniform relative to body size, with broilers obtaining large thighs and feet between four and six weeks of age. This implies that the energetic cost of swinging the limbs is markedly increased across this growth period, perhaps contributing to reduced activity levels. Hindlimb bone length does not change during this period, which may be advantageous for increased stability despite the increased energetic costs. Increased pectoral muscle growth appears to move the centre of mass cranio-dorsally in the last two weeks of growth. This has direct consequences for ventilation (heavier sterna apparatus must be moved with each breath) and locomotion (potentially greater limb muscle stresses during standing andmoving). Our study is the first to measure these changes in the musculoskeletal system across growth in chickens, and reveals how artificially selected changes of the morphology of the pectoral apparatus may cause deficits in locomotion, as well as breathing.

scholarly journals Muscle architecture and functional anatomy of the pelvic limb of the ostrich (Struthio camelus)

2006 ◽  
Vol 209 (6) ◽  
pp. 765-779 ◽  
Author(s):  
N. C. Smith ◽  
A. M. Wilson ◽  
K. J. Jespers ◽  
R. C. Payne
Keyword(s):  
Functional Anatomy ◽  
Muscle Architecture ◽  
Struthio Camelus ◽  
Pelvic Limb

scholarly journals Amino Acid Profile of Protein from Pelvic Limb Long Bones of Broiler Chickens

2009 ◽  
Vol 78 (4) ◽  
pp. 571-577
Author(s):  
Eva Straková ◽  
Pavel Suchý ◽  
Ivan Herzig ◽  
Ladislav Steinhauser ◽  
Vlasta Šerman ◽  
...  
Keyword(s):  
Amino Acid ◽  
Protein Content ◽  
Broiler Chickens ◽  
Crude Protein ◽  
Dry Matter ◽  
Amino Acid Profile ◽  
Average Weight ◽  
Long Bones ◽  
Crude Protein Content ◽  
Pelvic Limb

The objective of the study was to determine the amino acid profile in protein from long bones of the pelvic limb (femur, tibiotarsus) in ROSS 308 hybrid broiler chickens, and to examine whether it is sex-dependent.The study material was obtained from 120 Ross 308 broiler chickens (60 males and 60 females) at the end of the fattening (40 days of age). The average weight of birds was 2 694 ± 32.6 g for cockerels and 2 345 ± 23.9 g for pullets. The study birds did not show any clinical signs of leg diseases. The long bones of the right pelvic limbs (femur and tibiotarsus) were collected after bird slaughter and after removal of soft tissues, they were used for laboratory analyses. The crude protein content and the amino acid (AA) composition were determined and the obtained values were recalculated to 100% dry matter. The chemical score (CS) and the essential amino acid index (EAAI) were calculated for each AA. As a standard, the hen egg ovalbumin was used. The crude protein content in 100% dry matter shows that the content of crude protein was significantly higher (P ⪬ 0.01) in the femur (405.3 ± 17.21 g/kg) compared to the tibiotarsus (393.5 ± 12.68 g/kg). The same trends were found with regard to sex. Both males and females had significantly (P ⪬ 0.01) higher crude protein content in the femur (406.6 ± 19.34 g/kg and 404.1 ± 15.09 g/kg, respectively) than in the tibiotarsus (395.0 ± 12.16 g/kg and 392.1 ± 13.21 g/kg, respectively). Both bones showed the highest contents of Gly, Glu and Pro, and the lowest contents of Met, Tyr and His. The same trends were found with regard to chicken sex. Collagenous protein has lower contents of most AA in comparison to the standard protein - ovalbumin; especially contents of Ser, Val, Met, Ileu and Phe are substantially lower. On the other hand, collagenous protein had higher contents of Gly, Pro, His and Arg. The collagenous protein EAAI for the femur and the tibiotarsus was 59.0% and 57.4%, respectively. The knowledge of amino acid composition in protein from long bones of the pelvic limb in broiler chickens is important because it can help us understand the origin of bone disorders.

Kualitas Fisik Daging Ayam Broiler yang Diberi Minyak Buah Merah dalam Pakan Komersial

2019 ◽  
Vol 6 (1) ◽  
pp. 20
Author(s):  
Abdul Rahman Ollong ◽  
Rizki Arizona ◽  
Rusli Badaruddin
Keyword(s):  
Moisture Content ◽  
Broiler Chickens ◽  
Broiler Chicken ◽  
Ph Value ◽  
Cooking Loss ◽  
Water Holding Capacity ◽  
Broiler Meat ◽  
Fruit Oil ◽  
Water Holding ◽  
Range Test

ABSTRAKPenelitian ini bertujuan untuk mengetahui pengaruh penambahan minyak buah merah (MBM) pada pakan terhadap kualitas fisik daging ayam broiler. Seratus ekor ayam broiler umur sehari (DOC) ditempatkan pada lima kelompok perlakuan pakan yang berbeda, yaitu: P1 (pakan kontrol/tanpa penambahan minyak), P2 (2% MBM), P3 (4% MBM), P4 (6% MBM) dan P5 (6% Minyak kelapa sawit). Setiap kelompok perlakuan terdiri dari empat ulangan masing-masing dengan lima ekor. Ayam broiler dipelihara selama 35 hari. Rancangan yang digunakan adalah Rancangan Acak Lengkap (RAL) dengan analisis variansi pola searah dan diuji lanjut dengan Duncan’s New Multiple Range Test (DMRT). Hasil penelitian menunjukkan bahwa semua variable yang diamati menunjukkan adanya pengaruh nyata (P<0,05) terhadap perlakuan yang diberikan. Dari hasil penelitian ini dapat disimpulkan bahwa penggunaan minyak buah merah (MBM) dalam pakan mampu memberikan pengaruh terhadap pH Daging, Daya Ikat Air (DIA), susut masak dan keempukan daging ayam broiler.Kata kunci : daging ayam broiler, daya ikat air, keempukan daging, pH daging, susut masakABSTRACT The experiment was conducted to study the effect of red fruit oil (RFO) onphysical quality  of broiler chicken. One hundred day old chicken (DOC) were placed in four groups of different treatments, of from levels of RFO (P1 (diet without addition of RFO), P2 (2% RFO), P3 (4% RFO) and P4 (6% RFO) and P5 (6% Palm oil)). The treatment group consisted of fivereplications with five birds each. Broiler chickens were reared for 35 days. Statistical analysis used Completely Randomized Design (CRD) and followed by Duncan’s New Multiple Range Test (DMRT). The results showed that the pH value, moisture content, water holding capacity, and cooking loss was significant differences. It could be concluded that the addition of red fruit oil in the diet give effect  of broiler chicken meat.Keywords: broiler meat, cooking loss, moisture content, pH value, water holding capacity

Sign in / Sign up

Export Citation Format

Share Document