The influence of goat genotype on the production of Capretto and Chevon carcasses. 4. Chemical composition of muscle and fatty acid profiles of adipose tissue

Dhanda, J.S; Dg, Taylor; Murray, Peter; McCosker, J.E

doi:10.1016/s0309-1740(99)00013-3

Cited by 30 publications

(15 citation statements)

References 16 publications

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“…Ash, moisture and protein values were close to those presented in literature (Dhanda et al, 1999(Dhanda et al, , 2003Madruga et al, 1999bMadruga et al, , 2001Beserra et al, 2000Beserra et al, , 2004Silva, 2005) and vary from 0.79 to 1.68%, from 70.80 to 80.25% and from 18.50 to 23.39%, respectively. Hashimoto et al (2007) found that the centesimal composition of the longissimus dorsi muscle of sheep was not affected by the substitution of corn by soybean hulls, which was not observed in this study.…”

Section: Resultssupporting

confidence: 88%

Centesimal composition and fatty acids of meat from lambs fed diets containing soybean hulls

Costa

Silva

et al. 2012

R. Bras. Zootec.

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-The objective of this study was to evaluate the centesimal composition and fatty acids in meat from animals fed diets containing levels of soybean hulls. The experiment was conducted at UESB in Itapetinga-BA, Brazil. Twenty-five confined Santa Inês rams were used. Treatments consisted of different levels of substitution of corn by soybean hulls (0, 25, 50, 75 and 100%) and elephant grass silage as forage. The design was completely randomized. Samples of concentrate and silage were collected to evaluate the fatty acid composition. The experimental period lasted 110 days. After this period, the animals were slaughtered and samples of the longissimus muscle were collected and vacuum-packed for further analysis. The levels of total lipid and protein showed quadratic effect with the increase of soybean hulls in the diet, as the moisture increased linearly with inclusion. There was no effect of treatments on the percentage of ash. The composition of saturated fatty acids (SFA), monounsaturated fatty acids (MUFA), polyunsaturated fatty acids (PUFA), PUFA/SFA and omega 6 (n-6) did not change, but increases in n-3 and reduction in the n-6:n-3 ratio were observed when the the amount of soybean hulls in the diet increased. The content of fatty acid conjugated linoleic acid (CLA) ranged from 3.0 to 4.0 g/kg at levels of substitution.The inclusion of soybean hulls in the diet increased CLA, the n-3 and decreased the n-6:n-3 ratio.

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Section: Resultssupporting

confidence: 88%

Centesimal composition and fatty acids of meat from lambs fed diets containing soybean hulls

Costa

Silva

et al. 2012

R. Bras. Zootec.

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“…The other components of the proximate analysis performed in this study did not differ between diets. Moisture, protein and ash values were close to those found in the literature for this species (DHANDA; TAYLOR; MURRAY, 1999, DHANDA;et al, 2003;ARRUDA;NASCIMENTO, 1999, MADRUGA et al, 2001BESERRA et al, 2000BESERRA et al, , 2004, ranging from 70.80 to 80.25 %, 18.50 to 23.39 % and 0.79 to 1.68 %, respectively. The fatty acid profile of meat is important to human health because people can reduce their risks of obesity, cancer and heart diseases by reducing lipid intake, especially cholesterol and saturated fatty acids, and increasing the consumption of monounsaturated and polyunsaturated fatty acids (JAKOBSEN, 1999;RHEE et al, 2000).…”

Section: Discussionsupporting

confidence: 86%

Anatomic and tissue characteristics in goats fed for extended periods with residue of castor biodiesel production

Oliveira

Silva

et al. 2013

Sem. Ci. Agr.

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Twenty-five adult crossbred goats, divided in two groups, were fed over a period of 16 months with diets based on Tifton hay and concentrate feed with (DCM) or without (WDCM) detoxified castor bean meal as a substitute for soybean meal. Throughout 480 days, blood samples were taken to measure lactate dehydrogenase, aspartate aminotransferase, alanine aminotransferase, urea, albumin and creatinine. The animals were euthanized, and the anatomical components (lungs, heart, spleen, liver, kidneys, tongue, empty stomach, empty intestines, omentum, cardiac and renal adipose tissue), carcass and commercial cuts (shoulder, ham, loin, ribs and neck) were weighed. Thereafter, an anatomic dissection of the loin was performed, separating the muscle, adipose and bone tissues. On the muscular part of the loin, longissimus dorsi, the proximate composition, fatty acid profile and the expression of SEW-1, IGF-I and IGF-II were analyzed. A higher incidence of bone tissue was observed in the anatomical dissections of the loin and a lower incidence of fat in the proximate composition of the longissimus dorsi of the DCO group compared to the WDCM group (p < 0.05). The expression of the IGF-II and SEW-1 genes was higher (p < 0.001 for each) in the muscle tissue of the DCM animals. Thus, using detoxified castor bean meal for long periods does not produce significant changes in the anatomical composition of the loin or the proximate composition of the longissimus dorsi. However, the differences in gene expression suggest the need for new investigations and care when using this product for animal feeding. Key words: Castor bean, goat, muscle tissue ResumoVinte e cinco cabras adultas mestiças, divididas em dois grupos, foram alimentadas por um período de 16 meses com dietas a base de feno de tifton e concentrado sem (SFMD) e com farelo de mamona destoxificado (FMD) em substituição ao farelo de soja. Aos 480 dias, foram coletadas amostras de sangue para dosagem de lactato desidrogenase, aspartato aminotransferase, alanina aminotransferase, uréia, albumina e creatinina. Em seguida, os animais foram sacrificados e foi realizada a pesagem dos componentes anatômicos (pulmões, coração, baço, fígado, rins, língua, estomago vazio, intestino vazio, omento, tecido adiposo cardíaco e renal), da carcaça e dos cortes comerciais (paleta, pernil, lombo, costelas e pescoço). Posteriormente, foi realizada a dissecção anatômica do lombo, separando tecidos muscular, adiposo e ósseo. Na porção muscular do lombo, Longissimus dorsii, foram analisadas a composição centesimal, o perfil de ácidos graxos e a expressão dos genes SEW-1, IGF-I e IGF-II. Verificou-se uma incidência superior de tecido ósseo na dissecção anatômica do lombo e uma incidência inferior de gordura na composição centesimal do Longissimus dorsii do grupo FMD em relação ao grupo SFMD (p < 0,05). A expressão do gene IGF-II resultou superior (p < 0,001) no tecido muscular dos animais FMD, bem como para o gene SEW-1 (p < 0,001). Diante do exposto, podemos concluir que a utilização do fare...

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“…Dhanda et al (1999), trabalhando com animais Boer + Saanen com diferentes pesos de abate, obtiveram valores de 0,05 e 0,15 para a relação AGPI/AGS. Madruga et al (2001), em animais mestiços abatidos com 175 dias de idade, observaram relação de 0,11, enquanto Rhee et al (2000), comparando cabritos Boer + Spanish alimentados a pasto ou com ração à base de grãos, observaram relações de 0,23 e 0,30; respectivamente.…”

Section: Resultsunclassified

“…A extração de lipídios totais foi realizada utilizando-se a técnica a frio, descrita por Folch et al (1957), com solução de clorofórmio/metanol (2:1 v/v). Para a transesterificação dos triacilgliceróis, foi utilizado o método 5509 da ISO (1978), em solução de heptano e KOH/metanol.…”

Section: Methodsunclassified

“…As amostras do músculo Longissimus dorsi (entre a 12 a e 13 a costelas) foram acondicionadas em embalagens de polietileno e armazenadas a -18ºC até o início das análises químicas, quando foram descongeladas até atingirem temperatura ambiente e, em seguida, trituradas em processador de alimentos e devidamente homogeneizadas em gral de porcelana. As amostras foram analisadas em duplicata.As análises de umidade e cinzas foram realizadas em estufa e mufla, respectivamente, e a determinação de proteína bruta, pelo método semimicro Kjeldahl, conforme Cunniff (1998).A extração de lipídios totais foi realizada utilizando-se a técnica a frio, descrita por Folch et al (1957), com solução de clorofórmio/metanol (2:1 v/v). Para a transesterificação dos triacilgliceróis, foi utilizado o método 5509 da ISO (1978), em solução de heptano e KOH/metanol.…”

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Características quantitativas da carcaça e qualitativas do músculo Longissimus dorsi de cabritos ¾ Boer + ¼ Saanen confinados recebendo rações contendo grãos de oleaginosas

et al. 2009

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RESUMO -Foram avaliadas as características quantitativas da carcaça, os rendimentos dos cortes, a proporção dos tecidos, a composição química, o colesterol e o perfil de ácidos graxos do músculo Longissimus dorsi de cabritos ¾ Boer + ¼ Saanen, alimentados com rações contendo grãos de linhaça, girassol ou canola. Foram utilizados 24 cabritos machos não-castrados com peso inicial de 22,7 kg e 90 dias de idade, distribuídos em delineamento inteiramente casualizado e abatidos com 30,9 kg de peso vivo médio e 61 dias de confinamento. As rações foram constituídas de: feno de aveia, farelo de soja, milho moído e suplemento mineral (tratamento controle, n=6) e adicionadas de grãos de linhaça (n=7), girassol (n=5) ou canola (n=6). O consumo de grãos de oleaginosas não influenciou o peso de carcaça quente, no entanto, o peso de carcaça fria foi maior nos animais alimentados com a ração controle, que apresentaram também menor perda por resfriamento. O rendimento verdadeiro e o rendimento comercial de carcaça não foram influenciados pelas rações. O rendimento dos cortes comerciais lombo e costela descoberta diferiram entre os animais alimentados com as rações contendo oleaginosas. Não houve diferença para as porcentagens de músculo, gordura e osso nem para a razão músculo:osso. A adição de grãos de canola resultou em maior teor de lipídeos no músculo Longissimus dorsi, mas não alterou o teor de colesterol. Os animais alimentados com as rações contendo grãos de canola e linhaça apresentaram menor razão ômega-6:ômega-3. Os benefícios dos grãos de oleaginosas sobre as características quantitativas da carcaça ou qualitativas do músculo em cabritos não justificam sua utilização nas rações.Palavras-chave: ácidos graxos, lipídios, qualidade da carne, rendimento de carcaça Quantitative characteristics of the carcass and qualitative of the Longissimus dorsi muscle of ¾ Boer + ¼ Saanen goats under feedlot system fed rations with oilseeds ABSTRACT -The quantitative characteristics of the carcass, yield of cuts, tissue proportion, chemical composition and fatty acid profile of the Longissimus dorsi muscle of ¾ Boer + ¼ Saanen goats fed rations with linseed, sunflower and canola seeds were evaluated. Twenty-four not castrated male goats initially averaging 22.7 kg and 90 days were allotted to a completely randomized design and slaughtered at 30.9 kg of body weight and 61 days of feedlot. The rations were composed of oats hay, soybean meal, ground corn and mineral supplement with the following treatments: control treatment (n=6) and in the others treatments, linseed (n=7), sunflower (n=5) and canola (n=6) seeds were added. The intake of oilseeds grains did not affect hot carcass weight; however, the cold carcass weight was greater in animals fed control diet, which also had lower weight loss by cooling. The carcass yield was not influenced by diet. The yield of loin and discovered rib commercial cuts differs among animals fed diets with oilseeds. No treatment effect on the muscle, fat and bone percentages, as well as on the muscle:bone r...

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The influence of goat genotype on the production of Capretto and Chevon carcasses. 4. Chemical composition of muscle and fatty acid profiles of adipose tissue

Cited by 30 publications

References 16 publications

Centesimal composition and fatty acids of meat from lambs fed diets containing soybean hulls

Centesimal composition and fatty acids of meat from lambs fed diets containing soybean hulls

Anatomic and tissue characteristics in goats fed for extended periods with residue of castor biodiesel production

Características quantitativas da carcaça e qualitativas do músculo Longissimus dorsi de cabritos ¾ Boer + ¼ Saanen confinados recebendo rações contendo grãos de oleaginosas

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