Effects of diets with increasing levels of golden flaxseed on carcass characteristics, meat quality and lipid traits of growing rabbits

Peiretti, P. G.; Meineri, Giorgia

doi:10.4081/ijas.2010.e70

Cited by 10 publications

(10 citation statements)

References 31 publications

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“…In fact, Dalle Zotte (2002) reported an n-6/n-3 ratio of 11.6 for the rabbit hind leg, and Liu et al (2009) reported even higher values (around 14.6) for this ratio. Peiretti et al (2011b) found an n-6/n-3 ratio of 13.1 for the LD muscle of rabbits fed maize oil supplement diet, although values ranging from 1.1 to 1.9 for this ratio were found in the LD muscle of rabbits fed golden flaxseedsupplemented diets (Peiretti and Meineri, 2010). Moreover, in a trial using tomato by-products, Peiretti et al (2013) found similar values to those of the present study.…”

Section: Tbars Assaysupporting

confidence: 83%

Dried artichoke bracts in rabbits nutrition: effects on the carcass characteristics, meat quality and fatty-acid composition

Dabbou

Gasco

Gai

et al. 2014

Animal

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In this study, the effects of the inclusion of artichoke bracts (AB) in rabbit diets on the carcass characteristics and rabbit meat quality were studied. A total of 120 rabbits aged 38 days were used and divided into three groups that were fed with different isonitrogenous and isocaloric diets supplemented with AB at 0%, 5% and 10%. The animals were single housed in wire cages at a temperature of 22 ± 2°C and had free access to clean drinking water. At 96 days of age, 12 rabbits/group were slaughtered in an experimental slaughterhouse without fasting. The carcass was weighed and the weights of the skin and full gastrointestinal tract were recorded. Carcasses were chilled at + 4°C for 24 h in a refrigerated room. The chilled carcass weight (CCW), dressing out percentage (CCW as percentage of slaughter weight), and the ratio of the head and liver were determined as a percentage of CCW. The reference carcass weight was also calculated. Carcasses were halved and the two longissimus dorsi (LD) muscles were excised. The left LD muscle was divided into two parts. The fore part was used to measure pH, colour and cooking losses. The hind part of the left LD was vacuum-packed, frozen at -20°C and then freeze-dried. Proximate composition, fatty-acid profile and thiobarbituric acid-reactive substances values were determined on freezedried samples. Results showed that carcass characteristics, LD muscle traits and its oxidative status were not affected by the AB supplementation, except for the meat ether extract content that increased from 0.68% to 0.94% on fresh matter basis with the increase of the AB supplementation (P < 0.01). The α-linolenic acid proportion decreased with the increase of the AB supplementation from 3.58% to 2.59% in the LD muscle and from 4.74% to 3.62% in the perirenal fat, whereas the n-6/n-3 ratio increased significantly with increasing AB inclusion from 7.15 to 10.20 in the LD muscle and from 6.68 to 9.35 in the perirenal fat (P < 0.01). Furthermore, no significant difference was found in preference among meat samples from each group. The enrichment of the rabbit's diet with AB allows the production of rabbit meat with a good degree of unsaturation and low saturation, even if the n-6/n-3 ratio was slightly worse.

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Section: Tbars Assaysupporting

confidence: 83%

Dried artichoke bracts in rabbits nutrition: effects on the carcass characteristics, meat quality and fatty-acid composition

Dabbou

Gasco

Gai

et al. 2014

Animal

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“…The study has shown a very high variability of FAs in the diets that resulted from the variation coefficient (VC), which was only limited to less than 50% in 4 FAs but it exceeded 150% in 12 cases out of 20. The FA profiles of the diets, which differed according to the ingredients, are not analytically reported in the present study; as expected, the diets supplemented with oilseed (false flax [13], chia [14], linseed [15], and perilla [17]) had increased proportions of linoleic (C18:2 n-6) and α-linolenic acid (C18:3 n-3) with increasing supplementation level of seeds, while the unsupplemented diets or those supplemented with spirulina [12,16], curcuma [18], or tomato pomace [19] contained large amounts of palmitic (C16:0), oleic (C18:1 n-9) and linoleic acid.…”

Section: Resultssupporting

confidence: 58%

“…The FA profile of the diets, as well as the perirenal fat and longissimus dorsi muscle of the rabbits have been reported in eight papers [12,13,14,15,16,17,18,19]. Lipid extraction was performed on the diets, meat, and fat samples according to Hara and Radin [21], while the transesterification of the FAs was carried out according to Christie [22], with the modifications described by Chouinard et al .…”

Section: Methodsmentioning

confidence: 99%

“…The effects of various raw materials (spirulina, curcuma, tomato pomace, false flax, linseed, chia, perilla seeds), as suitable unsaturated FA sources, have been the subject of eight experiments concerning the quality of rabbit meat [12,13,14,15,16,17,18,19]. Many of these studies have shown that supplementation is effective in improving the n-3 PUFA content, decreasing the n-6/n-3 ratio and reducing the saturation, atherogenic and thrombogenic indexes of the meat and fat, with consequent benefits on the nutritional quality of rabbit meat for consumers.…”

Section: Introductionmentioning

confidence: 99%

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Effects of Dietary Fatty Acids on Lipid Traits in the Muscle and Perirenal Fat of Growing Rabbits Fed Mixed Diets

Peiretti

2012

Animals

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Simple SummaryPolyunsaturated fatty acids in human foods have been shown to have health benefits. We investigated the potential to incorporate them into rabbit meat by adding them to the diet. Good relationships between dietary fatty acids (FAs) and their content in longissimus dorsi muscle and perirenal fat of rabbits was established, especially the latter. The results should make it possible to enhance the polyunsaturated fatty acid content of rabbit meat, with benefits to the health of human consumers.AbstractThe aim of this study was to evaluate the effects of various raw materials (spirulina, curcuma, tomato pomace, false flax, linseed, chia, perilla seeds) as suitable polyunsaturated fatty acid n-3 (n-3 PUFA) sources, on the lipid traits in the longissimus dorsi muscle and perirenal fat of growing rabbits. The fatty acid (FA) analyses of the diets, carried out by gas chromatography, differed over a wide range on the basis of the highly varied ingredients in 27 experimental formulations. Among the 29 identified FAs, three from feeds were catabolized in the rabbits, five were de novo synthesized and stored chiefly in the muscle. It was possible to linearly characterize the incorporation from the feed to the muscle of 16 FAs. This study has confirmed that the dietary inclusion of various raw materials could be considered as a way of enriching the n-3 PUFA of rabbit meat. A proposal for the prediction of n-3 PUFA from dietary α-linolenic acid (C18:3 n-3) and a panel of another 10 FAs has been made for intramuscular fat (R2 = 0.94) and perirenal fat (R2 = 0.96).

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“…Egg industry over the last decade has been penalised by a negative trend in per capita egg consumption possibly linked to the fact that eggs are a major dietary sources of cholesterol and consumers are concerned about the correlation between cholesterol intake and cardiovascular disease (Zazpe et al, 2011). In order to improve the nutritional profile of animal products omega-3 feed enrichment has been extensively investigated in many sectors such as poultry science (Cherian and Sim, 1991;Gonzalez-Esquerra and Leeson, 2001;Fraye et al, 2012), rabbit nutrition (Bernardini et al, 1999;Dal Bosco et al, 2004;Kouba et al, 2008;Peiretti and Meineri, 2010;Dal Bosco et al, 2014) as well as pig nutrition (Morgan et al, 1992;Leskanich et al, 1997). In recent years special attention has also been paid by dairy industries to improve the nutraceutical profile of milk by increasing the content of polyunsaturated fatty acids (PUFA) omega-3 FA (Dewhurst et al, 2006).…”

Section: Introductionmentioning

confidence: 99%

Chia (Salvia hispanica L.) as a novel forage and feed source: A review

Jamshidi

Amato

Ahmadi

et al. 2019

Italian Journal of Agronomy

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Chia (Salvia hispanica L.), is a traditional pre-Colombian food crop from Central America. Being considered the richest botanical source of omega-3 fatty acids, it has recently been rediscovered as a functional food and feed. A growing body of literature indicates that dietary chia seeds greatly improve animal products quality without compromising growth, productivity and organoleptic quality. Chia is mainly cultivated as a seed crop but recently interest has been raised on biomass production as a potential forage source opening alleys toward the integration of chia in crop-livestock systems. Literature on chia is flourishing, up to now reviews addressed botany, agronomy phytochemical and medicinal uses, this article reviews the main findings on chia use in animal nutrition and includes an overview on both seed and biomass yield and quality as affected by environment, agronomy, and genetic background. Chia is a short-day flowering crop, seed yields of commercial varieties can be as high as 2999 kg ha–1 in areas of origin while at European latitudes seed production is severely hampered by photoperiod sensitivity (max 518 kg ha–1). The viable growing of chia for seeds worldwide relies on the availability of genotypes flowering at longer days than in the areas of origin, while for whole plant a relatively high forage yield can be expected. In southern Italy commercial short-day flowering varieties yielded up to 2.07 t ha–1 of leaf dry biomass and in Greece chia yielded up to 15 T ha−1 dry biomass. Chia seeds supplement in livestock diet are administered with the main objective to increase the content of omega-3 and improve animal health. The majority of work has been done on poultry and rabbits where rewarding results have been obtained in terms of improvement of products lipids profile. Only one work was published on pig but the first results are encouraging. Published data on ruminants are few but in agreement with findings on other species these works demonstrate chia has no adverse effects health performances, and sizeable improvement of milk fatty acid profile. A qualitative improvement of freshwater cultivated fish fillets was also obtained with a partial replacement of soybean oil with chia. Finally an innovative study tested the effect of total or partial replacement of wheat bran in the diets of two edible insects that can be considered the new frontier of food and feed production chains.

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Effects of diets with increasing levels of golden flaxseed on carcass characteristics, meat quality and lipid traits of growing rabbits

Cited by 10 publications

References 31 publications

Dried artichoke bracts in rabbits nutrition: effects on the carcass characteristics, meat quality and fatty-acid composition

Dried artichoke bracts in rabbits nutrition: effects on the carcass characteristics, meat quality and fatty-acid composition

Effects of Dietary Fatty Acids on Lipid Traits in the Muscle and Perirenal Fat of Growing Rabbits Fed Mixed Diets

Chia (Salvia hispanica L.) as a novel forage and feed source: A review

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