Effect of the Dorper breed on the performance, carcass and meat traits of lambs bred from Santa Inês sheep

Souza, Denia Alves Albuquerque de; Selaive-Villarroel, Arturo Bernardo; Pereira, Elzânia Sales; Silva, E.M.C.; Oliveira, Ronaldo Lopes

doi:10.1016/j.smallrumres.2016.10.017

Cited by 33 publications

(27 citation statements)

References 26 publications

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“…The breed effect on meat pH in the present study might be attributed to changes in the muscle glycogen reserve at slaughter which is inversely related to the ultimate pH [44].…”

Section: Color and Ph Measures Of Meatmentioning

confidence: 55%

Comparative Slaughter Performance and Meat Quality of Rutana, Gumuz and Washera Sheep of Ethiopia Supplemented with Different Levels of Concentrate

Worku¹,

Urge²,

Animut³

et al. 2020

OJAS

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A study was conducted to compare the carcass yield and meat quality of Rutana, Gumuz and Washera sheep of Ethiopia under two concentrate supplement levels (CSL), low (300 g/day) and high (450 g/day). The supplement contains 45% wheat bran, 26% maize grain and 29% Noug cake. A total of 36 sheep (12 from each genotype) were used in 3 × 2 factorial treatment arrangement (3 genotypes and 2 CSL) which was used in a completely randomized block design. Hay was fed ad libitum at a rate of 20% refusal. After the completion of 90 days fattening period, all sheep were slaughtered and meat sample from longissimus dorsi muscle of each animal was taken for sensory evaluation and instrumental measurement of tenderness and for color, pH, and chemical composition analysis. Slaughter body weight (SBW) (26.0 vs. 24.1 kg), hot carcass weight (HCW) (11.3 vs. 9.7 kg), dressing percentage (DP) on SBW (43.4% vs. 40.1%) and EBW basis (53.6% vs. 50.9%), and rib eye-muscle (REM) were higher for the high than low CSL. Rutana sheep had heavier HCW (11.9 kg) than Gumuz (10.1 kg) and Washera (9.4 kg) sheep. DP on EBW basis was higher for Rutana (54.7) than Washera sheep (48.1), while the value for Gumuz (50.9) was similar with both genotypes. Meat from high supplemented sheep had higher fat (9.7% vs. 8.8%), tenderness, juiciness, flavor and lower shear forces than the low level of supplementation. Most sensory parameters measured were in the order of Rutana > Gumuz > Washera sheep. It is concluded that Rutana sheep were relatively more suitable than Gumuz and Washera sheep for production of better carcass yield.

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“…The breed effect on meat pH in the present study might be attributed to changes in the muscle glycogen reserve at slaughter which is inversely related to the ultimate pH [44].…”

Section: Color and Ph Measures Of Meatmentioning

confidence: 55%

Comparative Slaughter Performance and Meat Quality of Rutana, Gumuz and Washera Sheep of Ethiopia Supplemented with Different Levels of Concentrate

Worku¹,

Urge²,

Animut³

et al. 2020

OJAS

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“…Although the latter have low carcass conformation, Souza et al (2016) found no difference in body score of Santa Inês, ½ Dorper × Santa Inês and ¾ Dorper × Santa Inês lambs. Garcia et al (2010) reported similarity between quantitative variables of Santa Inês, Texel × Santa Inês, and Dorper × Santa Inês lambs, corroborating the results obtained in the present study, which found no difference among the groups analyzed regarding CCW, tissue composition, or fat cover.…”

Section: Discussionmentioning

confidence: 63%

Discrimination ability of Santa Inês and crossbred Santa Inês × Dorper lamb heavy carcasses by the Brazilian and European classification systems

et al. 2017

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-The ability of discriminating carcass characteristics of different fat cover scores of heavy carcasses, according to the European (EUS) and Brazilian (BRS) classification systems, was assessed. Fifty-six lambs, weighing between 26.25 and 46.15 kg, of the Santa Inês and crossbred Santa Inês × Dorper genetic groups were evaluated. The level of adiposity was assessed through color photography of the carcasses after refrigeration according to the EUS and BRS. The carcasses were assigned to four groups by cluster analysis according to 25 variables, namely, cold carcass weight; muscle; bone; fat; and muscle:fat and fat:bone ratios of the carcass and cuts (hindquarter, shoulder, back); kidney, pelvic, and inguinal fat; and subcutaneous fat thickness. Of the four groups obtained by cluster analysis, the scores according to the different classification systems only statistically differed between groups 1 and 4. The BRS had a higher number of variables well correlated with the scores by assessors than the groups classified by the EUS. The BRS was better correlated with tissue composition. However, most variables were better correlated with backfat thickness than the score obtained through the classification systems. Better results were obtained regarding the prediction of carcass fat by the BRS using backfat thickness or cold carcass weight. The Brazilian lamb carcass classification system better predicts tissue composition and is the best method to discriminate intermediate-fat classes when associated with cold carcass weight.Key Words: conformation, non-specialized breeds, tissue composition Revista Brasileira de Zootecnia

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“…The meat of lambs of the SF and K breeds was darker (SF: L* = 40.85; K: L* = 40.28). Higher L* values were found by Souza et al (2016) in their experiment; on the contrary, almost the same values for the Oulu breed were recorded by Liu et al (2015). Regarding the effect of line, dominance (p ≤ 0.01) of all lines of the ZW breed over the SF and K lines was apparent.…”

Section: Resultsmentioning

confidence: 70%

“…In ZW lines, the intramuscular fat content did not exceed 1.00 %. Differences between breeds in intramuscular fat content have also been published by Souza et al (2016). In the meat of the Zbyšek line, the intramuscular fat concent was conclusively (p ≤ 0.01) lower than in that of the Ewebank Armani, President and Avatar line.…”

Section: Resultsmentioning

confidence: 83%

“…There are a number of factors, whether external or internal, which effect carcass value and meat quality. Out of internal influences, breed plays a significant role according to Dobeš et al (2007), Simeonov et al (2014), Turner et al (2014), Souza et al (2016), Komprda et al (2012) and Jandasek et al (2014). The aim of this study was to evaluate the effect of the breed and line on slaughter value and quality of lamb meat.…”

Section: Introductionmentioning

confidence: 99%

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Evaluation of the Effect of Breed and Line on Slaughter Value and Quality of Lamb Meat

János

Filipčík

Hošek

et al. 2019

Acta Univ. Agric. Silvic. Mendelianae Brun.

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The aim of our experiment was to evaluate to what degree carcass value and quality of lamb meat are effected by selected breeds (Zwartbles, Suffolk, Romney Marsh) and lines (Zbyšek, Ztepl, Záblesk, Ewebank Armani, President, Romeo, Avatar). Suffolk breed rams were found to have (p ≤ 0.05) the lowest weight at slaughter (37.47 ± 4.10 kg) and also carcass weight (15.23 ± 1.78 kg). Romney Marsh's carcasses had a significantly higher degree of fat cover (3.6 ± 0.4), kidney fat ratio was 0.78 ± 0.17 % and the percentage of fat from the right leg was 2.50 ± 0.61 %. The conclusively (p ≤ 0.01) highest ratio of the right leg was recorded in the Suffolk breed (17.00 ± 0.79 %). The highest ratio of the leg of carcass among the lines was found in the President line (17.53 ± 0.66 %). Meat of the Suffolk line had the significantly (p ≤ 0.01) highest ratio of dry matter, intramuscular fat, protein and ash. Among the lines, this trend was similar in favor of the Suffolk's line. The Zwartbles breed had the lowest (p ≤ 0.01) ratio of fat and dry matter in the meat. The value of pH, lightness (L* = 51.55 ± 1.66) and color spectrum b* (13.12 ± 0.46) of meat was conclusively (p ≤ 0.01) the highest in the Zwartbles breed, while the redness indicator (7.56 ± 1.45) was conclusively the lowest for this breed. Statistically (p ≤ 0.01), the meat of the Suffolk breed had the most potent red color (a* = 11.87 ± 1.24) and the highest water-holding capacity (81.57 ± 1.87).

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Effect of the Dorper breed on the performance, carcass and meat traits of lambs bred from Santa Inês sheep

Cited by 33 publications

References 26 publications

Comparative Slaughter Performance and Meat Quality of Rutana, Gumuz and Washera Sheep of Ethiopia Supplemented with Different Levels of Concentrate

Comparative Slaughter Performance and Meat Quality of Rutana, Gumuz and Washera Sheep of Ethiopia Supplemented with Different Levels of Concentrate

Discrimination ability of Santa Inês and crossbred Santa Inês × Dorper lamb heavy carcasses by the Brazilian and European classification systems

Evaluation of the Effect of Breed and Line on Slaughter Value and Quality of Lamb Meat

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