Carcass and meat quality traits of Nellore young bulls and steers throughout fattening

Silva, L.H.P.; Assis, Débora E.F.; Estrada, Mauricio; Assis, Gutierrez J.F.; Zamudio, Germán Darío Ramírez; Carneiro, Gustavo B.; Filho, S. C. Valadares; Paulino, Mário Fonseca; Chizzotti, Antônio

doi:10.1016/j.livsci.2019.09.012

Cited by 33 publications

(31 citation statements)

References 47 publications

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“…Our established average age at slaughter values correspond to those established by [10,20,21]. The average CW values in our case correspond to [10,21,22]; however, these are significantly lower than [20] and, conversely, higher than [23]. Similar values were found in the case of average BW values [10], while higher values for the Czech Fleckvieh breed are registered in [7,8]; however, lower values have also been recorded [16].…”

Section: Genetic Parameters Estimationsupporting

confidence: 88%

“…The average DP value of all monitored animals (just the S method) was 54.16%. Our established DP value is very low; other authors obtained a slightly higher value [9,10] or a much higher value [23]. In relation to the classification of meat yield according to the SEUROP classification system, our results did not differ markedly from those given by [9,21], which range around class R (3), similar to our case.…”

Section: Genetic Parameters Estimationsupporting

confidence: 79%

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Environmental Factors and Genetic Parameters of Beef Traits in Fleckvieh Cattle Using Field and Station Testing

Filipčík

Falta

Kopec

et al. 2020

Animals

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The goal of this study was to analyze the genetic and environmental factors of selected meat yield indicators in Fleckvieh cattle in the Czech Republic, through the application of station (S) and field (F) testing methods. Data collected from fattened bulls were analyzed for F (n = 9378) and for S (n = 6346). In the F method and the S method, the values of the main meat yield indicators were as follows: carcass weight 402.91 kg (F), 339.37 kg (S); carcass daily gain 626.05 g/day (F), 609.74 g/day (S); SEUROP carcass classification 2.73 (F), 2.19 (S). Environmental factors were found to have a significant impact on the selected meat yield indicators; their heritability ranged from 0.14 (SEUROP classification) to 0.33 (dressing percentage). The genetic trend was significantly positive only in relation to those meat yield traits, which had a positive link to the size or weight of the animal. The genetic correlation between observations obtained in the S and F methods of testing was very high in relation to the carcass daily gain (0.8351) and carcass weight (0.8244), while slightly lower correlations were calculated for the SEUROP classification. A genetic evaluation of the degree of fatness is not routinely performed in Fleckvieh populations, and the newly established heritability for this trait ranges between 0.17–0.20. The genetic correlation between beef yield indicators and the exterior trait of muscularity was also established, and shows a strong link to the net daily gain, the SEUROP classification and body weight (0.79–0.97). The aim of the study was to evaluate the genetic and environmental effects on meat yield and also estimate genetic parameters for new traits. We can also state, based on the results, that a strong positive genetic trend is confirmed, especially in traits related to the size or weight of animals. This result can be used in breeding programs of dual-purpose cattle, where we can genetically improve the meat and milk yield through the body size.

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Section: Genetic Parameters Estimationsupporting

confidence: 88%

Section: Genetic Parameters Estimationsupporting

confidence: 79%

Environmental Factors and Genetic Parameters of Beef Traits in Fleckvieh Cattle Using Field and Station Testing

Filipčík

Falta

Kopec

et al. 2020

Animals

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“…In recent years, carcass traits are crucial indices reflecting livestock production in animal husbandry [27][28][29]. Francisco et al [30] showed that the live BW and diet composition were two main factors associated with carcass traits, and these observations were also found in our study.…”

Section: Carcass Traitssupporting

confidence: 86%

Effects of Dietary Protein Levels on Growth Performance, Carcass Traits, Serum Metabolites, and Meat Composition of Tibetan Sheep during the Cold Season on the Qinghai-Tibetan Plateau

Wang

Geng

et al. 2020

Animals

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Dietary protein is a critical nutrient that directly influences the health and production of livestock. Recent studies showed that protein supplements could enhance the growth performance of Tibetan sheep. However, there is a lack of information regarding the influence of dietary protein levels on carcass traits and meat composition. This study investigated the effects of dietary protein levels on growth performance, carcass traits, serum metabolites, and meat composition in Tibetan sheep during the cold season on the Qinghai-Tibetan Plateau. A total of eighteen 1-year-old, healthy, castrated Tibetan sheep with similar initial body weights (31.7 ± 0.72 kg) were randomly divided into three treatment groups with different dietary protein level (low protein (LP, 10.1%); medium protein (MP, 12.1%); high protein (HP, 14.1%)) diets. The results indicated that the Tibetan sheep fed with the MP and HP diets had greater final body weights (BWs), average daily gains (ADGs), and average daily feed intakes (ADFIs) (p < 0.05). The MP and HP diets also improved the hot carcass weight, net meat (including the fat) weight, and bone weight of the sheep significantly (p < 0.05). Besides, the dietary protein levels could significantly affect the serum concentrations of growth hormone (p < 0.05). The diameter of muscle fibers in the MP group was significantly greater than that in the LP group (p < 0.05), while the density of muscle fibers showed the opposite trend. The dietary protein levels only significantly (p < 0.05) influenced the ether extract content and profile content of the longissimus dorsi muscle but had no effect on other parameters of meat composition. In summary, our results indicate that dietary protein levels affect growth performance, carcass traits, and meat composition and that diets containing 12.1% and 14.1% protein are recommended to obtain better production performance and meat products in Tibetan sheep, rather than a diet containing 10.1% protein, during the cold season on the Qinghai-Tibetan Plateau.

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“…This may be explained due to: (i), the beef samples in both the sex types were in the same quality grade (1 + grade) group because beef cuts within a same quality grade usually are uniform in quality; (ii), the steers produced after castration (castrated male cattle) usually are changed in their hormonal profiles (Plouzek and Trenkle, 1991) which reduced the action and aggressive behavior whereas, increased the fat deposition in muscle tissues (Destefanis et al, 2003). Other researchers have also shown an increased intramuscular fat content and improved meat quality in castrated male cattle (steers) compared to intact male cattle (bulls) (Silva et al, 2019). Till now, no reports comparing the technological quality traits between the steer and cow meats are available.…”

Section: Proximate Compositionmentioning

confidence: 99%

Comparison of Tastes-Related Components and Eating Quality between Hanwoo Steer and Cow Longissimus thoracis Muscles

Cho

Seol

Kang

et al. 2020

Food Sci Anim Resour

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Carcass and meat quality traits of Nellore young bulls and steers throughout fattening

Cited by 33 publications

References 47 publications

Environmental Factors and Genetic Parameters of Beef Traits in Fleckvieh Cattle Using Field and Station Testing

Environmental Factors and Genetic Parameters of Beef Traits in Fleckvieh Cattle Using Field and Station Testing

Effects of Dietary Protein Levels on Growth Performance, Carcass Traits, Serum Metabolites, and Meat Composition of Tibetan Sheep during the Cold Season on the Qinghai-Tibetan Plateau

Comparison of Tastes-Related Components and Eating Quality between Hanwoo Steer and Cow Longissimus thoracis Muscles

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