Carcass and meat properties of six genotypes of young bulls finished under feedlot tropical conditions of Mexico

Vazquez-Mendoza, O. V.; Osorio, Gilberto Aranda; Huerta-Bravo, Maximino; Kholif, Ahmed E.; Elghandour, Mona M.Y.; Salem, Abdelfattah Z.M.; Maldonado‐Simán, Ema

doi:10.1071/an141037

Cited by 11 publications

(8 citation statements)

References 26 publications

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“…The results of the present trial agree with other reports reporting carcass grades for fed entire males where the "Bulls" of "Bullocks" with Bos indicus influence, hardly exceeded the USDA-Standard grade, but exhibited the top USDA yield grades [16,36].…”

Section: Carcass Classification/grading Of the Experimental Groupssupporting

confidence: 92%

Fattening performance and carcass traits of implanted and supplemented grassfed bulls

et al. 2021

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Ninety-nine uncastrated males were randomly distributed into four grazing groups to examine variation in growth and carcass traits, due to the implant regime [Implantation of 72 miligrams (mg) of Ralgro® at day (d) 0 followed by its reimplantation at d 90 versus implantation of Revalor® at d 0 followed by 72 mg of Ralgro® at d 90)], and suplementation type [mineral supplementation (MS) versus strategic supplementation (SS)]. With a 2 x 2 factorial arrangement, the analysis of variance included the treatments and their interaction (implant regimen x supplementation) as fixed effects, and the breed type as a random effect. The interaction was not significant; neither did the implant regimen on any growth trait (P > 0.05). Compared to MS, the SS group had a greater daily weight gain (779 vs. 541 grams; P < 0.001), required a shorter (38.3 d lesser) time of fattening to reach the end point (198.3 versus 236.6 d; P < 0.001) with a heavier liveweight (498. 2 vs. 474. 4 kilograms; P = 0.02) at an earlier age (29.4 vs. 30.8 months; P < 0.001), with a higher carcass dressing percentage (59.13 vs 57.62 %; P = 0.03) and younger carcass bone maturity (P < 0.001). With the exception of thoracic depth, carcass traits did not vary with the implant regimen (P > 0.05). The use of aggressive implant regimens to improve growth or carcass characteristics of grazing bulls is not justified. SS is a feasible practice to improve fattening performance of grazing bulls but no beneficial impact on their carcass quality was expected.

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Section: Carcass Classification/grading Of the Experimental Groupssupporting

confidence: 92%

Fattening performance and carcass traits of implanted and supplemented grassfed bulls

et al. 2021

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“…In Mexico, young feedlot-finished bulls of six genotypes (zebu, European Brown Swiss, Holstein, zebu × European Brown Swiss, zebu × American Brown Swiss and zebu × Hereford) showed few significant differences in carcass and meat characteristics [ 78 ]. Of note was the higher shear force of the zebu (80 N) than all other genotypes (61–68 N).…”

Section: Carcass and Meat Qualitymentioning

confidence: 99%

“…Lower IMF content was reported in Brahman than Charolais bulls (2.4% vs. 2.9%) [ 74 ], and in 25-month-old Nellore steers (2.65%) compared to Santa Gertrudis × Nellore crosses (3.64%), while the IMF content of Simmental × Nellore steers was intermediate and not different from either [ 105 ]. Two studies found no differences in IMF contents, both reporting low values (1.3–2.0% IMF) [ 66 , 78 ]. In one of these studies, the breeds were not reported [ 66 ], while in the other bulls of zebu, Holstein and European Brown Swiss purebreds and zebu crosses with Holstein, American Brown Swiss or European Brown Swiss were used.…”

Section: Nutrient Compositionmentioning

confidence: 99%

Tropical Beef: Is There an Axiomatic Basis to Define the Concept?

Lozano

Ngapo

Huerta-Leidenz

2021

Foods

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Cattle production in tropical regions has been estimated to account for just over half of cattle worldwide, yet it has not been demonstrated that sufficient similarities in the cattle exist to describe tropical cattle and, even less so, to characterize the meat from these animals. The aim of this review is to investigate the quality and nutrient composition of meat from cattle raised in the Tropics to determine if there is an axiomatic basis that would allow the definition of a concept of “tropical beef”. Tropical beef is the meat obtained from cattle raised in tropical environments, the population of which remains largely uncharacterized. Production systems in the Tropics are highly diverse but converge on the use of indigenous and Bos indicus breeds or Bos indicus-influenced crossbreeds under pasture feeding regimes. While some systems allow cattle to be slaughtered at ≤2 years of age, most often animals are ≥3 years. These production systems generally produce lean, low-yielding carcasses and tough (>46 N), lean (≤3.6% intramuscular fat) meat with a macronutrient composition otherwise similar to beef from animals raised elsewhere (72–74% moisture and 20–24% protein). Fatty acid profiles depend on the breed and production systems, while mineral content is influenced by the environment. Although lean and tough, tropical beef is highly acceptable to the consumers it serves, is culturally and traditionally relevant and, in many countries, contributes to food security. Consolidating the findings from animal and meat science studies in the Tropics has allowed the demonstration of an axiomatic basis defining “tropical beef” as a concept.

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“…Prior to the analysis of cooking losses (CL) and Warner-Bratzler shear force (WBSF), the samples were thawed for 24 h at 4 • C in a cooler protected from drafts and the meat samples were analysed in triplicate. CL was determined according by Vazquez-Mendoza et al [33]; for this purpose, fillets with 2.5 cm thick were roasted on a grill (Toastmaster cool-edgegrill, Macon, MO, USA) until they reached an internal temperature of 70 • C, which was monitored with a thermometer (Brannan & Sons, Cleator Moor, Cumbria, UK). When the temperature reached 70 • C, the fillets were removed from the grill and allowed to cool to room temperature (20-25 • C).…”

Section: Meat Qualitymentioning

confidence: 99%

“…When the temperature reached 70 • C, the fillets were removed from the grill and allowed to cool to room temperature (20-25 • C). To calculate the percentage of CL, each fillet was weighed before and after the procedure (weight of raw meat−weight of cooked meat)/weight of raw meat ×100), as it was described by Vazquez-Mendoza et al [33]. In order to measure the WBSF, 2.5 cm thick meat fillets (three per lamb) were cooked at 70 • C using the CL method, as sited above.…”

Section: Meat Qualitymentioning

confidence: 99%

Productive Performance, Carcass Traits, and Meat Quality in Finishing Lambs Supplemented with a Polyherbal Mixture

et al. 2021

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The objective of this study was to evaluate the effects of dietary supplementation of a polyherbal mixture (HM) containing saponins, flavonoids, and polysaccharides on productive performance, carcass characteristics and meat quality of lambs during the final fattening period. Thirty-six Dorper × Katahdin lambs (23.27 ± 1.23 kg body weight (BW)) were housed in individual pens and were assigned to four treatments (n = 9) with different doses of HM: 0 (CON), 1 (HM1), 2 (HM2) and 3 (HM3) g of HM kg−1 of DM for 56 days. Data were analysed as a completely randomized design using the MIXED and GLM procedures of statistical analysis system (SAS), and linear and quadratic effects were tested to evaluate the effects of the HM level. DM digestibility decreased in lambs fed HM3 (p < 0.05). There was no effect of HM on daily weight gain, dry matter intake, final BW, feed conversion, carcass characteristics, colour (L* and a*) and meat chemical composition. Meat pH, cooking loss and drip loss increased linearly (p < 0.05) when the HM dose was increased. The Warner-Bratzler shear force (WBSF) of meat was lower (p < 0.05) in lambs fed HM3. In conclusion, dietary inclusion of 3 g HM kg1 of DM improves meat tenderness. However, high doses of HM in the diet may decrease the digestibility of DM and increase the cooking loss and drip loss of lamb meat during the final fattening period.

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Carcass and meat properties of six genotypes of young bulls finished under feedlot tropical conditions of Mexico

Cited by 11 publications

References 26 publications

Fattening performance and carcass traits of implanted and supplemented grassfed bulls

Fattening performance and carcass traits of implanted and supplemented grassfed bulls

Tropical Beef: Is There an Axiomatic Basis to Define the Concept?

Productive Performance, Carcass Traits, and Meat Quality in Finishing Lambs Supplemented with a Polyherbal Mixture

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