scholarly journals Promoter and Transcription of Type X Collagen Gene in Broiler Chickens with Tibial Dyschondroplasia

1996 ◽  
Vol 75 (6) ◽  
pp. 691-694 ◽  
Author(s):  
X. ZHANG ◽  
G.R. MCDANIEL ◽  
J.J. GIAMBRONE ◽  
E. SMITH
Keyword(s):  
Broiler Chickens ◽  
Collagen Gene ◽  
Type X Collagen ◽  
Tibial Dyschondroplasia

scholarly journals Icariin Ameliorate Thiram-Induced Tibial Dyschondroplasia via Regulation of WNT4 and VEGF Expression in Broiler Chickens

2018 ◽  
Vol 9 ◽  
Author(s):  
Hui Zhang ◽  
Khalid Mehmood ◽  
Kun Li ◽  
Mujeeb U. Rehman ◽  
Xiong Jiang ◽  
...  
Keyword(s):  
Broiler Chickens ◽  
Vegf Expression ◽  
Tibial Dyschondroplasia

EFFECT OF DIETARY CATION-ANION BALANCE AND CALCIUM CONTENT ON GENERAL PERFORMANCE AND INCIDENCE OF LEG ABNORMALITIES OF BROILER CHICKENS

1987 ◽  
Vol 67 (1) ◽  
pp. 165-177 ◽  
Author(s):  
H. W. HULAN ◽  
K. B. McRAE ◽  
F. G. PROUDFOOT ◽  
P. C. M. SIMONS ◽  
P. J. W. VAN SCHAGEN
Keyword(s):  
Weight Gain ◽  
Broiler Chickens ◽  
Body Weight Gain ◽  
Calcium Content ◽  
Feed Utilization ◽  
Feed Conversion ◽  
Tibial Dyschondroplasia ◽  
General Performance ◽  
Feeding Diets ◽  
Main Effects

A factorial experiment with 1440 day-old Hubbard chicks was conducted to assess the interacting effects of dietary Na, K, Cl and Ca on general performance and incidence of leg abnormalities, especially tibial dyschondroplasia (TD). For Ca at 0.95%, all combinations of Na (0.17, 0.30), K (0.80, 1.10, 1.40), Cl (0.22, 0.44) were present; for Ca at 1.38% the combinations were the same except for K (0.80, 1.40). The various cation combinations produced 12 and 8 different meq kg−1 of (Na + K − Cl) for Ca at 0.95 and 1.38%, respectively. Body weight gain and feed conversion were affected by the main effects K, Ca and Na and also by their interaction. Both weight gain and efficiency of feed utilization were influenced by cation-anion balance as shown by significant Ca × K, Na × K, Ca × Na (feed conversion only) and K × Cl interactions. Increasing dietary K or Na increased litter moisture, whereas Cl moderated the effect of Ca. The incidence of TD was reduced by increasing dietary Ca, Na or K but their effects are interdependent on each other and on the level of dietary Cl as evidenced by significant Ca × Na, Na × K and Na × K × Cl interactions. Feeding diets with (Na + K − Cl) between 155 and 300 meq kg−1 had little effect on growth and feed conversion. Dietary Ca level changed both the pattern and response of birds for growth and feed utilization, suggesting that the term meq kg−1 (Na + K − Cl) is an inadequate measure of dietary cation-anion balance. Key words: Dietary cation-anion, calcium, leg abnormalities, broilers

Welfare assessment of conventional and organic broilers in Denmark, with emphasis on leg health

2018 ◽  
Vol 183 (6) ◽  
pp. 192-192 ◽  
Author(s):  
Fernanda M Tahamtani ◽  
Lena K Hinrichsen ◽  
Anja B Riber
Keyword(s):  
Contact Dermatitis ◽  
Broiler Chickens ◽  
Production Systems ◽  
Organic Production ◽  
Walking Ability ◽  
Welfare Assessment ◽  
Welfare Indicators ◽  
Tibial Dyschondroplasia ◽  
Conventional Production ◽  
Gait Score

The aim of this study was to survey and report the walking ability in broilers housed in both conventional and organic production systems in Denmark. To this end, the authors assessed the walking ability, by using the Bristol scale, in 31 conventional broiler flocks and in 29 organic broiler flocks distributed across Denmark. In addition, assessment of contact dermatitis, leg abnormalities, scratches and plumage cleanliness, as well as postmortem analysis of tibial dyschondroplasia, was performed in conventional broilers. The survey found a prevalence of 77.4 per cent of impaired walking ability (gait score (GS) >0) in conventional broilers and 38.1 per cent in organic broilers. The prevalence of severe lameness (GS >2) was 5.5 per cent and 2.5 per cent for conventional and organic broilers, respectively. The prevalence of tibial dyschondroplasia in conventional broilers was 4.7 per cent. The results on other welfare indicators are also presented for conventional broilers. The results from the present and previous surveys indicate that the prevalence of impaired walking ability in broiler chickens in the Danish conventional production system is high, but the severity has been steadily decreasing over the last 19 years. Furthermore, the results from the survey of organic broilers suggest that lameness is less prevalent and severe in this system relative to conventional production.

scholarly journals Comparison of techniques for tibial dyschondroplasia assessment in broiler chickens

2005 ◽  
Vol 7 (1) ◽  
pp. 27-31 ◽  
Author(s):  
ICL Almeida Paz ◽  
AA Mendes ◽  
TS Takita ◽  
LC Vulcano ◽  
PC Guerra ◽  
...  
Keyword(s):  
Broiler Chickens ◽  
Tibial Dyschondroplasia ◽  
Comparison Of Techniques

scholarly journals Type X collagen biosynthesis and expression in avian tibial dyschondroplasia

1998 ◽  
Vol 6 (2) ◽  
pp. 125-136 ◽  
Author(s):  
Anthony M. Reginato ◽  
Reza I. Bashey ◽  
Gaston Rosselot ◽  
Ronald M. Leach ◽  
Carol V. Gay ◽  
...  
Keyword(s):  
Collagen Biosynthesis ◽  
Type X Collagen ◽  
Tibial Dyschondroplasia

scholarly journals A BMP Responsive Transcriptional Region in the Chicken Type X Collagen Gene

2009 ◽  
Vol 13 (10) ◽  
pp. 1521-1529 ◽  
Author(s):  
Susan W. Volk ◽  
Phyllis Luvalle ◽  
Todd Leask ◽  
Phoebe S. Leboy
Keyword(s):  
Collagen Gene ◽  
Type X Collagen

scholarly journals Fusarium-Induced Osteochondrosis (Tibial Dyschondroplasia) in Chickens

1982 ◽  
Vol 19 (5) ◽  
pp. 544-550 ◽  
Author(s):  
M. M. Walser ◽  
N. K. Allen ◽  
C. J. Mirocha ◽  
G. F. Hanlon ◽  
J. A. Newman
Keyword(s):  
Broiler Chickens ◽  
Experimental Period ◽  
Tibial Dyschondroplasia

Broiler chickens were started and maintained on rations containing 2%, 5%, and 10% grain contaminated with Fusarium roseum. There was mortality of 75% and 100%, respectively, in chicks fed 5% and 10% levels, and osteochondrosis was present in chicks which died at 12 to 17 days of age. Chicks on 2% or 3% F. roseum-contaminated grain survived the experimental period and osteochondrosis was well-developed in the proximal tibias of 85 or 90% of these chicks. The number of chondroclasts was reduced markedly in the affected bones. Defective chondroclasis may play a role in the pathogenesis of osteochondrosis associated with F. roseum.

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