Carcass characteristics of feedlot-finished Nellore heifers slaughtered at different weights

Rezende, Pedro Leonardo de Paula; Restle, João; Bilego, Ubirajara Oliveira; Fernandes, Juliano José de Resende; Missio, Régis Luís; Guimarães, Tiago Pereira

doi:10.4025/actascianimsci.v41i1.44826

Cited by 8 publications

(7 citation statements)

References 10 publications

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“…In commercial terms, the producer is mostly concerned with hot carcass yield (HCY), calculated as HCW divided by slaughter weight (Rezende et al, 2019). In the present study, the average carcass yield was 48.3%, higher than the 38.9% found by Trindade et al, (2018) in Santa Ines sheep finished in tropical pastures receiving supplementation at a rate of 1.38% of body weight.…”

Section: Carcass Characteristicsmentioning

confidence: 48%

Different Grass Availabilities of Tropical Pasture on Performances and Carcasses of Lambs

Heimbach

Ítavo

et al. 2020

Trop. Anim. Sci. J.

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This study aimed to identify the best green-leaf offerings of Urochloa brizantha cv. Marandu for pasture-finished lambs receiving protein-energy supplementation at the rate of 1.6% of their body weights (BW). The animals were assigned into four treatments, which consisted of varied green-leaf offerings, namely, 105, 90, 75, or 60 g of dry matter/kg of body weight (BW). Sixty-eight contemporary Texel × mixed-breed lambs with an average initial BW of 22.6 kg were used over two years of experiment. The experiment was set up in a completely randomized design, the data were evaluated by analysis of variance and the means were compared by Tukey's test at the 0.05 significance level. There was no significant effect of year neither interaction of year with green-leaf offer. There were significant effects of leaf offer on dry matter intake (DMI) with behavior of positively linear (p<0.05). There were significant effects of green-leaf offer on final BW and average daily gain, and lambs receiving of 75 g/kg green-leaf offer showed the highest ADG (179 g/d). There were no significant differences in the carcass, meat, and primal cuts between the groups of lambs receiving different herbage offerings. There were significant effects of leaf offer on slaughter weight, hot carcass weight, and subcutaneous fat thickness. Lambs receiving of 75 g/kg leaf offer showed the highest SFT (5.8 mm). Slaughter weight and hot carcass weight averaged 41.52 kg and 20.07 kg, respectively. We recommend the treatment with leaves offer of 75 g/kg BW of Marandu pasture for the finishing of lambs supplemented at 1.6% of BW.

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Section: Carcass Characteristicsmentioning

confidence: 48%

Different Grass Availabilities of Tropical Pasture on Performances and Carcasses of Lambs

Heimbach

Ítavo

et al. 2020

Trop. Anim. Sci. J.

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“…The forequarter cut involved the neck, shoulder, forelegs, and ve ribs. The six short ribs were taken by separating them around 22 cm from the spine, along with the abdominal muscles (Rezende et al, 2019). The plate being attached to the forequarter (cut passing across the ribs at right angles to the rst cut at a point below the center of the lib cage).…”

Section: Indices Of Carcass Conformationmentioning

confidence: 99%

“…The plate being attached to the forequarter (cut passing across the ribs at right angles to the rst cut at a point below the center of the lib cage). The Hindquarter Mass (HM: kg) and Hindquarter to Carcass Compactness (%) (HCC) and the Forehands Mass (kg) and Forehands to Carcass Compactness (%) (FCC) were measured for each animal on the right side of the carcass (Rezende et al, 2019). The following carcass measurements and ratios were calculated, as indicators of carcass conformation: Hip Thickness Index (HTI) as HT / HL with HT is the measured as the horizontal distance between the outermost points on the medial and the lateral surface of the leg and HL is the Hind Leg Length evaluated as the distance between the center point of the ilio-pubic fusion of the pelvis and the distal edge of the pelvic limb (Xavier 2022).…”

Section: Indices Of Carcass Conformationmentioning

confidence: 99%

Slaughter performances, body composition and carcass traits of indigenous Algerian cattle "Brune de l'Atlas"

Gherissi,

Lamraoui,

Chacha

et al. 2023

Preprint

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The present study consists of an assessment of the slaughter performance, body composition, and carcass traits of 51 native Algerian bulls 'Brune de l'Atlas' belonging to four ecotypes, aged 1 to 2 years, and fattened for a period of 4 to 6 months. Its main objective is to provide an estimate of the mean parameters related to meat production in terms of quantity and quality, including live weight and body composition, slaughter yield, conformation, fatness, and fineness of carcasses. The average live weight is 366.56±92.56 kg. The average true and commercial dressing percentages are 60.11±11.09% and 56.1±10.04%, respectively. The studied animals produce lean carcasses with a low proportion of body fat. The fattening index and the score of the fattening state are 5.9±3.86% and 14.81±7.67, respectively, and the score of the fattening state is 1.85±0.83. As for the carcass conformation, it is relatively insignificant. The thigh compactness index is 4.82±1.59, the carcass compactness index is 1.55±0.37, the buttock compactness index is 0.69±0.02, and the average EUROP carcass classification score is 1.86±1.04 (≈O class). Significant positive correlations were found between body live weight and carcass weight, 5th quarter and carcass conformation, and negative correlations with slaughter yield and body fineness. These results showed an interesting level of slaughter performance of the local Algerian cattle population. The latter could contribute to satisfying the growing demand for red meat and reducing the costs of red meats imports through the improved valuation of its butchering performance by implementing genetic, nutritional, and other management practices improvements.

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“…(2004) described that the IMF content increased when the hot carcass weight of Angus, Angus×Hereford and Wagyu×Holstein increased from 100 to 450 kg ( Figure 3 ). A positive correlation between MS and slaughter weight in feedlot-finished Nellore heifers was observed ( Rezende et al., 2019 ). Moreover, Nogalski et al.…”

Section: Management Factorsmentioning

confidence: 99%

Main regulatory factors of marbling level in beef cattle

Nguyen

Malau‐Aduli

2021

Veterinary and Animal Science

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The content of intramuscular fat (IMF), that determines marbling levels is considered as one of the vital factors influencing beef sensory quality including tenderness, juiciness, flavour and colour. The IMF formation in cattle commences around six months after conception, and continuously grows throughout the life of the animal. The accumulation of marbling is remarkably affected by genetic, sexual, nutritional and management factors. In this review, the adipogenesis and lipogenesis process regulated by various factors and genes during fetal and growing stages is briefly presented. We also discuss the findings of recent studies on the effects of breed, gene, heritability and gender on the marbling accumulation. Various research reported that feeding during pregnancy, concentrate to roughage ratios and the supplementation or restriction of vitamin A, C, and D are crucial nutritional factors affecting the formation and development of IMF. Castration and early weaning combined with high energy feeding are effective management strategies for improving the accumulation of IMF. Furthermore, age and weight at slaughter are also reviewed because they have significant effects on marbling levels. The combination of several factors could positively affect the improvement of the IMF deposition. Therefore, advanced strategies that simultaneously apply genetic, sexual, nutritional and management factors to achieve desired IMF content without detrimental impacts on feed efficiency in high-marbling beef production are essential.

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Carcass characteristics of feedlot-finished Nellore heifers slaughtered at different weights

Cited by 8 publications

References 10 publications

Different Grass Availabilities of Tropical Pasture on Performances and Carcasses of Lambs

Different Grass Availabilities of Tropical Pasture on Performances and Carcasses of Lambs

Slaughter performances, body composition and carcass traits of indigenous Algerian cattle "Brune de l'Atlas"

Main regulatory factors of marbling level in beef cattle

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