Effects of growth rate, sex and slaughter weight on fat characteristics of pork bellies

Correa, J. A.; Gariépy, C.; Marcoux, M.; Faucitano, L.

doi:10.1016/j.meatsci.2007.12.018

Cited by 43 publications

(48 citation statements)

References 23 publications

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“…Carcass weight, dressing out and loin eye area were not affected by gender. Barrows had fatter carcasses than gilts (P , 0.001), which agrees with the findings of Correa et al (2008) and Ferná ndez-Dueñ as et al (2008). The lean meat content was higher (P , 0.001) in gilts than in barrows (Table 2), in agreement with the earlier study (Ferná ndezDueñ as et al, 2008).…”

Section: Resultssupporting

confidence: 90%

Influence of rearing system, diet and gender on performance, carcass traits and meat quality of Polish Landrace pigs

Maiorano

Kapelański

Bocian

et al. 2013

Animal

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Forty-eight Polish Landrace pigs (initially 32.43 6 0.70 kg live weight) were assigned to a 2 3 2 3 2 factorial arrangement in order to assess the effects of the rearing system (outdoor v. indoor), diet (with corn grain silage v. without corn grain silage) and gender (barrows v. gilts) on performance, carcass traits, meat quality and intramuscular collagen (IMC) characteristics. During the trial period of 14 weeks, each group was housed in a pen of 12 m 2 , and the outdoor-reared animals had access to a paddock of 24 m 2 . Pigs were fed a diet computed according to standard requirements and supplied on a basis of 9% of metabolic weight (live weight 0.75 ). Pigs were slaughtered at 110.69 6 0.85 kg. The rearing system did not significantly affect growth, hot and cold dressing, meat quality of m. longissimus lumborum or IMC. Outdoor pigs had less (P , 0.05) backfat thickness, slightly higher (P 5 0.082) lean percent and a meat with lower pH and fat than the conventional system. In light of these results, alternative pig rearing systems with indoor space and free outdoor access could be an interesting production system for the pigs. Compared with the pigs fed diets with corn grain silage, those fed diets without corn had higher (P , 0.05) lean, ham percentage and IMC content, lower (P , 0.05) neck percentage but similar main tissue components of the ham and meat quality. Compared with the gilts, barrows were fatter and showed a meat with different physico-chemical traits, which was slightly more tender and had similar IMC properties.

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Section: Resultssupporting

confidence: 90%

Influence of rearing system, diet and gender on performance, carcass traits and meat quality of Polish Landrace pigs

Maiorano

Kapelański

Bocian

et al. 2013

Animal

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“…It turns out that the sex of pigs is an important determinant of the muscle content in bellies from heavy half-carcasses, but would not impact this trait in light half-carcasses. This is in accordance with the fact that barrows are characterized by a higher accumulation of fat in the belly than gilts during the longer lasting finishing period (Freeden, 1980;Correa et al, 2008).…”

Section: Discussionsupporting

confidence: 87%

“…Such an interpretation is confirmed by the lower average mass of belly and dissected tissues obtained in our experiment compared with the results of the above authors. The nature of changes in the quality of belly depending on sex was also emphasized in work by Correa et al (2008), who showed a softer fat for gilts. The quality of fat, however, was not investigated in our research.…”

Section: Discussionmentioning

confidence: 94%

Factors affecting the tissues composition of pork belly

Duziński

Knecht

Lisiak

et al. 2015

Animal

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Bellies derived from the commercial population of pig carcasses are diverse in terms of tissue composition. Knowledge of the factors influencing it and the expected results, permits quick and easy evaluation of raw material. The study was designed to determine the factors affecting the tissues composition of pork bellies and to estimate their lean meat content. The research population (n = 140 pig carcasses) was divided into groups according to sex (gilts, barrows), half-carcass mass (<40, 40 to 43.9, 44 to 46.9, ⩾ 47 kg) and lean meat content class: S (⩾60%), E (55% to 60%), U (50% to 55%), R (<50%). Bellies were subjected to a detailed dissection. Half-carcass mass affected the levels of all the analysed parameters. The only exception was the mass of the fat with the skin in the 40 to 43.9 kg group, for which the value did not differ statistically between the two groups <40 and 44 to 46.9 kg. Decrease in lean meat content affected the growth of the fat and skin mass in a linear way. No differences were observed between class S and E in terms of belly muscle mass. A 0.37% higher share of belly in the half-carcass was found for barrows ( P < 0.001), although bellies issued from barrows were characterized by a higher proportion of fat with skin compared with gilts ( P = 0.02). Interactions were observed between sex and half-carcass mass, so the sex of heavy half-carcasses becomes an important determinant for conditioning the muscle content. Equations were calculated and allow a fast and highly accurate determination of the lean meat content in bellies, suggesting they may be used directly in the production line.

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“…Scott et al, 1981;Cameron & Enser, 1991;Correa et al, 2008). In the same line, the present study also showed that influence, since bellies of pigs from Bressiani farm (Agroceres PIC genetic) presented total polyunsaturated acid content (16.15% total PUFA) and iodine value (65.18) greater than the bellies of the pigs from Água Branca farm (Topigs genetic), indicating a higher concentration of fat beneficial to human health from the first ones.…”

Section: Resultssupporting

confidence: 81%

“…The bellies of the gilts showed lower backfat thickness compared to the bellies of immunocastrated pigs, even though immuncastrated pigs showed lower lipid content of their bellies than castrated ones. However, Correa et al (2008) found thinner bellies of gilts of the genetic Duroc x (Landrace x Yorkshire) compared to the bellies of barrow animals. For the present study, no differences were found between the two genetic from different commercial farms studied, possibly considering that the Duroc x Landrace crossbred being present in both genetic lines investigated.…”

Section: Resultsmentioning

confidence: 91%

Effects of ractopamine hydrochloride and immunological castration in pigs. Part 2: belly quality characteristics and fatty acid composition

2017

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The effects of immunocastration and ractopamine in the diet on the belly quality were investigated from two crossbred pigs under different conditions of production, diet, management, and slaughter arranged in factorial design using two levels of addition of ractopamine in the diet, 0 and 7.5 ppm, and three genders (gilts, immunocastrated and barrows). The quality of bellies were analyzed for chemical composition, pH, meat and fat color, backfat thickness and fatty acid profile of the fat. The addition of ractopamine showed no significant influence on pH, color and chemical composition in two crossbred pigs. The immunocastrated had thicker belly backfat compared to the bellies of the gilts. The contents of fatty acids polyunsaturated, linoleic, linoleic, arachidonic, total omega 3 and omega 6 were higher for immunocastrated pigs, as well as presenting values greater than 0.4 for the PUFA:SFA ratio, thus, providing bellies with better nutritional quality. The bellies of the gilts and immunocastrated pigs had higher concentrations of iodine value, indicative of higher unsaturated fat content. The results indicated that the addition of ractopamine and immunocastration had little influence on the quality of bellies as well as in their fatty acid profiles, suggesting the continuity of implementation of these techniques.

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Effects of growth rate, sex and slaughter weight on fat characteristics of pork bellies

Cited by 43 publications

References 23 publications

Influence of rearing system, diet and gender on performance, carcass traits and meat quality of Polish Landrace pigs

Influence of rearing system, diet and gender on performance, carcass traits and meat quality of Polish Landrace pigs

Factors affecting the tissues composition of pork belly

Effects of ractopamine hydrochloride and immunological castration in pigs. Part 2: belly quality characteristics and fatty acid composition

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