scholarly journals Effects of Light Sources in Poultry House on Growth Performance, Carcass Yield, Meat Quality and Blood Components of Finishing Broilers

2020 ◽  
Vol 47 (3) ◽  
pp. 159-167
Author(s):  
Eui-Chul Hong ◽  
Bo-Seok Kang ◽  
Hwan-Ku Kang ◽  
Jin-Joo Jeon ◽  
Are-Sun You ◽  
...  
2014 ◽  
Vol 93 (8) ◽  
pp. 1883-1889 ◽  
Author(s):  
H.B. Tong ◽  
Q. Wang ◽  
J. Lu ◽  
J.M. Zou ◽  
L.L. Chang ◽  
...  

Animals ◽  
2019 ◽  
Vol 9 (12) ◽  
pp. 1101 ◽  
Author(s):  
Alejandra Domínguez-Negrete ◽  
Sergio Gómez-Rosales ◽  
María de Lourdes Angeles ◽  
Luis Humberto López-Hernández ◽  
Tercia Cesaria Reis-de Souza ◽  
...  

Humic substances (HS) from different sources have been evaluated to replace or reduce the use of growth promoter antibiotics (GPA) in the feeds of broiler chickens. The objective was to evaluate the growth performance, tibia measurements, nutrient balance, meat quality, and microbiological status of broiler fed with an HS extract (EHS) under ad libitum (ADLIB) or feed restriction (REST). Individually caged broilers (n = 180, 14–35 day of age) were assigned to a factorial arrangement of three dietary treatments: (1) positive control with bacitracin methylene disalicylate (BMD) and salinomycin; (2) negative control without BMD nor salinomycin, and (3) same as negative control with 0.25% EHS, and two feeding regimens 1) ADLIB or REST for 24 h on d 1, 7, and 14. Results were subjected to ANOVA. Positive control and EHS-fed broilers showed higher carcass yield (p < 0.05) and lower oocyst excretion (p < 0.01) compared to negative control birds. Lactic acid bacteria (LAB) and Clostridium perfringens (C. perfringens) were higher in negative control and EHS-broilers compared to positive control (p < 0.01). In conclusion, higher carcass yield, lower C. perfringens and oocyst excretion were found in positive control and higher carcass yield, higher LAB and lower oocyst excretion were found in EHS-fed broilers. Broilers subjected to REST had reduced growth performance and meat quality. In conclusion, EHS could be used to increase the carcass yield and beneficial LAB in broilers.


2015 ◽  
Vol 94 (6) ◽  
pp. 1115-1121 ◽  
Author(s):  
H.B. Tong ◽  
J. Cai ◽  
J. Lu ◽  
Q. Wang ◽  
D. Shao ◽  
...  

2019 ◽  
Vol 90 (7) ◽  
pp. 887-893
Author(s):  
Sihua Jin ◽  
Xinfeng Fan ◽  
Lei Yang ◽  
Tingting He ◽  
Yuan Xu ◽  
...  

2009 ◽  
Vol 88 (10) ◽  
pp. 2219-2223 ◽  
Author(s):  
K.H. Wang ◽  
S.R. Shi ◽  
T.C. Dou ◽  
H.J. Sun

2020 ◽  
Vol 5 (1) ◽  
pp. 607-616
Author(s):  
Olusegun O. Ikusika ◽  
Andrew B. Falowo ◽  
Conference T. Mpendulo ◽  
Titus J. Zindove ◽  
Anthony I. Okoh

AbstractThis study examined strain, sex and slaughter weight effect on performance, meat quality and yield of broiler chicken. One hundred and fifty-day-old chicks (broilers) were distributed randomly in a 3 × 2 × 4 factorial experiment, with 50 birds per strain (Ross, Aboaca and Anak) and 25 birds per sex. After trial, 32 birds per strain and 16 per sex were slaughtered at 4 different body weights (1,000, 1,500, 2,000, and 2,500 g) to determine carcass yield and meat quality. The results revealed significant strain and sex effect (P < 0.05) on growth performance of the broiler chicken. Ross strain had the highest feed intake (4883.25 g) and final body weight (2440.25 g) compared to Aboaca and Anak strains. Female broiler having heavier body weight (2431.66 g) and feed intake (4864.83 g) than the males for all strains. Aboaca birds had the highest carcass yields for all slaughter weight than Anak and Ross. The slaughter weight, irrespective sex and strains significantly influenced the carcass yield (P < 0.001) with birds slaughtered at 2,500 g having (P < 0.001) highest values compared to other slaughtered weights. As slaughter weight increases, cooking loss and thermal shortening decreases while water holding capacity and shear force values increases. Overall, Aboaca strain was considered to have best performances for production.


2021 ◽  
Vol 46 (1) ◽  
pp. 48-56
Author(s):  
A. A. Khaskheli ◽  
L. Chou

The main objective of the investigation was to observe the growth performance, carcass yield, meat quality, and intestinal morphology of broiler chicks with respect to the dietary crude palm stearin (CPS). The study was conducted on 200 birds and dividing them into two experimental groups viz control and CPS treated group with 10 replications of 10 birds in each. Chicks under the control group were fed basal diet only, however in CPS treated group chicks were fed the basal diet supplemented with 3% CPS. Birds were reared for 42 days and data regarding different parameters of study was recorded. Data were analyzed by student T-test and differences were considered significant at P < 0.05.Results indicated CPS treated group pertaining to lower final body weight, daily weight gain, feed conversion ratio, feed intake, dressing percentage, fillets, thight+drumsticks, and wings percentages. CPS treated group possessed lower liver, spleen, gizzard, and abdominal fat weights. Breast meat holds lower values for shear force, drip loss in CPS treated group, while cooking loss found vice versa. Abdominal fat breast in the meat and thigh skin possessed higher a* (redness) and b* (yellowness) values in CPS treated chicks, while breast skin and thigh meat hold lower a* and b* values in CPS treated chicks compared to control. Intestinal villus height, villus area and crypts depth in duodenum found considerably higher in the CPS treated chicks. Jejunum in CPS treated group possessed higher crypt depth but villus height and villus area remained lower. In conclusion, CPS impairs overall growth performance, carcass yield and meat quality but supports the intestinal morphology. 


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