Influence of Housing System on Selected Quality Characteristics of Duck Meat. Chapter 2. Muscovy duck

Author(s):  
MONIKA MICHALCZUK ◽  
LECH ADAMCZAK ◽  
MARTA CHMIEL ◽  
KRZYSZTOF DAMAZIAK ◽  
TOMASZ FLOROWSKI ◽  
...  

2021 ◽  
Vol 21 (1) ◽  
pp. 291-309
Author(s):  
Sebastian Nowaczewski ◽  
Lidia Lewko ◽  
Marta Kucharczyk ◽  
Kinga Stuper-Szablewska ◽  
Magdalena Rudzińska ◽  
...  

Abstract In this study, the objective was to evaluate the effect of the age of Hy-line Brown hens – 44 and 60 weeks of age (26 and 42 weeks of laying) and housing system (enriched cages and litter) on the quality of eggs. According to our results, eggs with a better quality of albumen were obtained from younger hens than from older hens. Moreover, older hens produced eggs with inferior quality related to shell parameters, such as greater elastic deformation, poorer breaking strength, and thinner shells. However, hens kept in a litter housing system laid eggs with superior shell quality characteristics of less flexible and greater breaking strength, even though the thickness, weight, and percentage were similar in both housing systems. In addition, a higher amount and activity of lysozyme were obtained from eggs laid by hens kept in the litter housing system than those obtained from hens kept in cages. The maintenance system and age of birds also had a significant (P≤0.05) effect on the basic chemical composition of eggs, as well as on the proportion of individual elements and fatty acid profile. Taking these results into account, we can conclude that the more valuable characteristics from the morphological and nutritional point of view were observed in eggs obtained from younger Hy-line hens kept in the litter housing system.


2020 ◽  
Vol 63 (2) ◽  
pp. 337-344
Author(s):  
Melahat Özbek ◽  
Metin Petek ◽  
Sena Ardıçlı

Abstract. This study was made to determine the effects of genotype and housing system on physical quality characteristics of breast and leg meat of broilers under experimental conditions. The 150 slow-growing and 150 fast-growing 1 d old chicks were divided into three sub-groups with indoor raised slatted plastic floor, indoor concrete floor with rice hull litter, and free-range housing systems (2 genotype groups × 3 housing systems). All birds were offered the same diet and were housed in similar conditions until they were 56 d old. At slaughter, 10 birds from each main group were selected randomly to determine the quality characteristics of the meat. In total, 60 breast meat pieces (pectoralis major muscle) and 60 legs of the chickens were used for meat quality analysis including pH, shear force, and colour characteristics such as lightness (L∗), redness (a∗), yellowness (b∗), saturation (C∗), and hue angle (h∗). The pH of breast meat was significantly affected by genotype and housing system (P<0.001 and P<0.001). There were significant genotype × housing system interactions for pH (P<0.015 and P<0.001) and shear force values (P<0.007 and P<0.012) of leg and breast meat. There were no significant effects of genotype and housing system on leg and breast meat colour properties except for effects of genotype on redness (a∗) of breast meat (p<0.005) and effects of housing on redness of leg meat colour (p<0.031). Slow-growing chickens and chickens housed in deep litter had a higher redness (darker) value of breast and leg meat colour compared to fast-growing birds and free range and slatted floor. In conclusion, it can be said that fast-growing broilers may be more appropriate for slatted plastic floor housing and slow-growing broilers may be more suitable for a free-range housing system, but further research on factors affecting meat quality would be very beneficial, especially in slow-growing broilers.


2011 ◽  
Vol 50 (No. 3) ◽  
pp. 129-134 ◽  
Author(s):  
E. Tůmová ◽  
T. Ebeid

Two experiments were carried out to investigate the effect of the time of oviposition on egg quality characteristics in two different housing systems (cages vs. litter). ISA brown hens from 20 to 64 weeks of age were housed in battery cages (550 cm<sup>2</sup>/hen, 19 526 laying hens in the house) and on deep litter (7 hen/m<sup>2</sup>, 4 652 laying hens in the house). In both houses, eggs were collected daily at three oviposition times 06:00, 10:00 and 14:00 h. Every four weeks, 90 eggs for each house (30 eggs for each oviposition time) were used for egg quality assessment. The results indicated that in cages the highest percentages (P &le; 0.001) of normal (74.47%), non-standard (0.85%) and cracked (1.80%) eggs were laid in the early morning (06:00 h). On deep litter, however, the highest percentages (P &le; 0.05) of normal sound eggs were produced at10:00 h (35.43%) and at14:00 h (33.03%). In the cage system, the heaviest eggs (63.01 g) were laid in the early morning (06:00 h) and the highest shell percentage (10.33%) was in eggs laid in the afternoon and also at 10:00 h (10.31%). On the other hand, in the litter housing system, the time of oviposition had no significant effect on egg weight and eggshell quality characteristics except for shell thickness. Morning eggs had greater shell thickness (0.398 mm) than afternoon eggs (0.390 mm). In cages and on litter, statistically significant differences in albumen height, albumen index and Haugh Units were observed between early morning eggs and afternoon eggs and data showed a pattern of relatively higher albumen quality for eggs collected in the afternoon in both systems. &nbsp;


2017 ◽  
Vol 17 (2) ◽  
pp. 462-468 ◽  
Author(s):  
Xiaoling Zhao ◽  
Wenshi Ren ◽  
Paul B. Siegel ◽  
Juan Li ◽  
Yan Wang ◽  
...  

2009 ◽  
Vol 54 (No. 1) ◽  
pp. 17-23 ◽  
Author(s):  
E. Tůmová ◽  
M. Skřivan ◽  
M. Englmaierová ◽  
L. Zita

The effect of egg collection time, genotype and housing system on egg quality characteristics was evaluated in an experiment with laying hens of ISA Brown, Hisex Brown and Moravia housed on litter and in conventional cages. The experiment was conducted from 20 to 64 weeks of age. Eggs were collected and recorded daily at 06:00, 10:00 and 14:00 h. Once every four weeks, two days in row, all eggs laid from each pen or cage at each oviposition time were used for egg quality analyses (total 1 694 eggs). Egg collection time was dependent on genotype. Significantly more eggs were laid at 06:00h by ISA Brown while Moravia laid eggs mainly at 10:00 and 14:00 h. Housing on litter postponed the time of oviposition. The highest egg weight (62.09 g) was recorded in Hisex Brown genotype placed in cages and at 06.00 h. Interactions of all factors were determined also in Haugh units (<I>P</i> ≤ 0.041). Eggshell strength was affected by housing system, genotype and egg collection time (<I>P</i> ≤ 0.049). It was higher in cages than on litter, and lower in the Moravia genotype in comparison with the other two strains.


2017 ◽  
Vol 23 (5(2)) ◽  
pp. 125-130 ◽  
Author(s):  
N. Bozhko ◽  
V. Tischenko ◽  
V. Pasichnyi ◽  
O. Moroz
Keyword(s):  

2018 ◽  
Vol 35 (4) ◽  
pp. 45-51
Author(s):  
Maria Tietze ◽  
Wanda Krupa ◽  
Monika Budzyńska ◽  
Jarosław Kamieniak ◽  
Leszek Sołtys ◽  
...  

2013 ◽  
Vol 58 (3) ◽  
pp. 659-662 ◽  
Author(s):  
K. Gawdzińska

Abstract In this paper it is stated, that a set of quality features of metal matrix composite castings differs from the same set for castings of classic materials, although some features are common for both of these material groups. These features (pertaining to a set of quality characteristics of composite castings) have been named as specific, they have not been determined yet and a description of material quality should be performed (according to the qualitology) on a principle of description of quality characteristics of this product. Therefore, this set of features has been determined. It was proposed to add the following characteristics to the set of specific features of composite castings quality: matrix material, reinforcement material, binding between components and porosity of the composite casting. In this set a sub-set of quality characteristics of composite castings was also determined.


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