Meat quality and the histological structure of breast and leg muscles in Ayam Cemani chickens, Ayam Cemani × Sussex hybrids and slow‐growing Hubbard <scp>JA</scp> 957 chickens

Łukasiewicz, Monika; Niemiec, J.; Wnuk, A.; Mroczek-Sosnowska, N.

doi:10.1002/jsfa.6883

Cited by 19 publications

(19 citation statements)

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“…In relation to the tenderness of meat, it is important to monitor muscle fibre characteristics. In accordance with the present study, Lukasiewicz et al [42] consistently reported that muscle fibre size is influenced by genotype. The total number of fibres was 15%-20% higher in the cockerels of the fast-growing line than in those of the slow-growing line [43].…”

Section: Discussionsupporting

confidence: 93%

Performance and Meat Quality of Dual-Purpose Cockerels of Dominant Genotype Reared on Pasture

Englmaierová¹,

Skřivan²,

Taubner³

et al. 2020

Animals

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The culling of layer cockerels due to economic inefficiency is an ethical problem. Organic or free-range fattening of these cockerels or dual-purpose genotypes breeding is a possible solution to this problem. The aim of the study was to assess the differences in performance and meat quality characteristics in dual-purpose cockerels Dominant of three genotypes (Dominant Sussex D 104, Dominant Brown D 102 and Dominant Tinted D 723, 100 cockerels per genotype) with access to pasture. The cockerels were housed in mobile boxes on the pasture herbage from the 50th to 77th day of age (stocking density: 0.108 m2/bird). The highest body weight on the 77th day of age (p < 0.001) and the nonsignificantly lowest feed conversion was achieved by Dominant Brown D 102 cockerels (1842 g and 2.79, respectively). Non-significantly higher pasture herbage intake on the 70th day of age was recorded in genotype Dominant Brown D 102 (7.41 g dry matter (DM)/bird/day) and Dominant Tinted D 723 (7.52 g DM/bird/day). The pasture herbage contained 56.9 mg/kg DM α-tocopherol, 170.3 mg/kg DM zeaxanthin and 175.0 mg/kg DM lutein and had a favourable n6/n3 ratio (0.26). The boiled meat of cockerels Dominant Tinted D723 showed the highest tenderness based on both the sensory evaluation (p = 0.022) and the value of shear force (p = 0.049). This corresponds with a higher (p < 0.001) cross-sectional area and muscle fibre diameter in these chickens. The highest content of n3 fatty acids (eicosapentaenoic, clupanodonic and docosahexaenoic acids) in breast meat were found in Dominant Sussex D104 chickens (p < 0.001). In contrast, a significantly higher α-tocopherol content (p < 0.001) and higher oxidative stability (p = 0.012) were found in Dominant Brown D102 (4.52 mg/kg and 0.282 mg/kg) and Dominant Tinted D 723 chickens (4.64 mg/kg and 0.273 mg/kg) in comparison with the Dominant Sussex D104 genotype (3.44 mg/kg and 0.313 mg/kg). The values of the atherogenic and thrombogenic indexes were the lowest (p < 0.001) in meat from Dominant Brown D102 chickens. Moreover, a lower cholesterol content (p < 0.001) was recorded from the genotypes Dominant Brown D102 (396 mg/kg) and Dominant Tinted D723 (306 mg/kg) chickens, contrary to the Dominant Sussex D104 cockerels (441 mg/kg). It can be concluded that cockerels Dominant Brown D102 are a suitable genotype for free-range rearing due to higher performance and higher pasture herbage intake, which positively influences meat quality, whereas the meat of Dominant Sussex D104 cockerels shows higher amounts of n3 fatty acids and lower n6/n3 ratios.

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Section: Discussionsupporting

confidence: 93%

Performance and Meat Quality of Dual-Purpose Cockerels of Dominant Genotype Reared on Pasture

Englmaierová¹,

Skřivan²,

Taubner³

et al. 2020

Animals

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“…Toughness is associated with dark, firm and dry meat, found especially in animals that are starved for too long. 49,50 The collagen content and the stability of cross-bridges increases as the animal ages, causing reduced tenderness. 46 This finding was also reported by Koohmaraie and Geesink 43 who observed that proteins such as nebulin and desmin play a role in the post-mortem tenderisation of meat as they lie next to the z-line.…”

Section: Resultsmentioning

confidence: 99%

“…46 This finding was also reported by Koohmaraie and Geesink 43 who observed that proteins such as nebulin and desmin play a role in the post-mortem tenderisation of meat as they lie next to the z-line. A study conducted in chicken by Łukasiewicz et al 49 indicated that genotype had an influence on the histological structure of muscles, such that tenderness, moisture content and muscle pH were affected. Tougher meat was associated with lean and older animals, and especially those that were stressed in the pre-slaughter environment.…”

Section: Resultsmentioning

confidence: 99%

“…Tougher meat was associated with lean and older animals, and especially those that were stressed in the pre-slaughter environment. 49 Less tender meat also resulted from muscle fatigue pre-slaughter. During this antemortem period, there was a rapid increase in the size of muscle fibres and an increase in the diameter through expansion of new myofibrils and sarcoplasm, which led to tougher meat.…”

Section: Resultsmentioning

confidence: 99%

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Effects of animal class and genotype on beef muscle nanostructure, pHu, colour and tenderness

Chulayo¹,

Muchenje²

2016

S. Afr. J. Sci.

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The objective of the study was to determine the effects of animal class and genotype of cattle on Muscularis longissimus thoracis et lumborum (LTL) nanostructure, ultimate pH (pHu), colour and tenderness of beef. We found significant positive relationships between distance travelled (DT) and meat temperature (Tm) (p less than 0.01); lairage duration (LDhr) and lightness of colour (L*) (p less than 0.01); ambient temperature (Ta) and L* (p less than 0.05) and LDhr and yellowness (b*) (p less than 0.05) of beef from Bonsmara cattle. Positive linear relationships were observed between DT and Tm (p less than 0.05) and DT and L* (p less than 0.01) of the non-descript cattle. There were no significant relationships between pre-slaughter stress and other beef quality parameters (pHu, Warner– Bratzler shear force [WBSF], redness [a*] and b*) of Bonsmara, Nguni and non-descript cattle. Muscle fibres differed among class and genotype and had an effect on meat quality. The Bonsmara, non-descript and Nguni cows and heifers had visible skeletal muscle fibres which were thin and long, promising improved tenderness of beef. Genotype and class had significant effects on meat quality parameters (Tm, pHu, L*, a*, b* and WBSF). The first important principal components as they appeared from the analysis were pHu, Tm, L*, a*, b* and WBSF. Therefore, animal class did not affect the nanostructure of beef; instead, meat tenderness was enhanced by the longer and visible muscle fibres. Nguni cattle produced meat of superior quality to that of the Bonsmara and the non-descript cattle.

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“…In terms of its plumage and body color, as well as its number of toes, this unique chicken breed resembles the indigenous Indonesian chicken breed Ayam cemani [2][3][4]. YO also has some morphological features that are similar to those of the Silkie fowl (called Ogolgye in Korea), except for a veiled black walnut comb and hair-like, fluffy plumage that is white or variably colored [5,6]. Although the exact origin of the YO breed has not yet been clearly defined, its features and medicinal usages were recorded in Dongui Bogam [7], a traditional Korean medical encyclopedia compiled and edited by Heo Jun in 1613.…”

Section: Introductionmentioning

confidence: 96%

Whole genome and transcriptome maps of the entirely black native Korean chicken breed Yeonsan Ogye

Sohn

Nam

Kim

et al. 2017

Preprint

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Yeonsan Ogye (YO), an indigenous Korean chicken breed (gallus gallus domesticus), has entirely black external features and internal organs. In this study, the draft genome of YO was assembled using a hybrid de novo assembly method that takes advantage of high-depth Illumina short-reads (232.2X) and lowdepth PacBio long-reads (11.5X). Although the contig and scaffold N50s (defined as the shortest contig or scaffold length at 50% of the entire assembly) of the initial de novo assembly were 53.6Kbp and 10.7Mbp, respectively, additional and pseudo-reference-assisted assemblies extended the assembly to 504.8Kbp for contig N50 (pseudo-contig) and 21.2Mbp for scaffold N50, which included 551 structural variations including the Fibromelanosis (FM) locus duplication, compared to galGal4 and 5. The completeness (97.6%) of the draft genome (Ogye_1) was evaluated with single copy orthologous genes using BUSCO, and found to be comparable to the current chicken reference genome (galGal5; 97.4%), . CC-BY-NC-ND 4.0 International license peer-reviewed) is the author/funder. It is made available under aThe copyright holder for this preprint (which was not . http://dx.doi.org/10.1101/224311 doi: bioRxiv preprint first posted online Nov. 24, 2017; which was assembled with a long read-only method, and superior to other avian genomes (92~93%), assembled with short read-only and hybrid methods. To comprehensively reconstruct transcriptome maps, RNA sequencing (RNA-seq) and representation bisulfite sequencing (RRBS) data were analyzed from twenty different tissues, including black tissues. The maps included 15,766 protein-coding and 6,900 long non-coding RNA genes, many of which were expressed in the tissue-specific manner, closely related with the DNA methylation pattern in the promoter regions.

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Meat quality and the histological structure of breast and leg muscles in Ayam Cemani chickens, Ayam Cemani × Sussex hybrids and slow‐growing Hubbard JA 957 chickens

Cited by 19 publications

References 30 publications

Performance and Meat Quality of Dual-Purpose Cockerels of Dominant Genotype Reared on Pasture

Performance and Meat Quality of Dual-Purpose Cockerels of Dominant Genotype Reared on Pasture

Effects of animal class and genotype on beef muscle nanostructure, pHu, colour and tenderness

Whole genome and transcriptome maps of the entirely black native Korean chicken breed Yeonsan Ogye

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