Desempenho, características de carcaça e resultado econômico de cordeiros criados em creep feeding com silagem de grãos úmidos de milho

Júnior, Gercílio Alves de Almeida; Costa, Ciniro; Monteiro, Alda Lúcia Gomes; Garcia, Cledson Augusto; Munari, Danísio Prado; Neres, Marcela Abbado

doi:10.1590/s1516-35982004000400025

Cited by 32 publications

(15 citation statements)

References 14 publications

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“…Quantitative and qualitative evaluation of the components of the carcass of small ruminants can be influenced by many factors, such as age, gender, breed and, especially, the type of diet (ALMEIDA JUNIOR et al, 2004). In the present study, the anatomical and carcass components were not affected by including detoxified castor meal in the diet.…”

Section: Discussionmentioning

confidence: 40%

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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Section: Discussionmentioning

confidence: 40%

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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“…Da mesma forma, as perdas por resfriamento (0,485 ± 0,164 kg) decorrentes das perdas em umidade da carcaça na câmara fria e as reações químicas ocorridas no músculo durante o resfriamento também não foram influenciadas pelos tratamentos. O índice de quebra por resfriamento (IQ%), encontrado na Tabela 2, foi em média 4,78% e situou-se acima dos valores médios observados em ovinos, próximo aos 3% (Almeida Jr. et al, 2004). Essa maior porcentagem de perda em relação aos ovinos pode ser atribuída à pouca cobertura de gordura nos caprinos, principalmente os animais nativos, como as raças Moxotó e Canindé.…”

Section: Resultsunclassified

Características de carcaça e dos componentes não-carcaça de cabritos Moxotó e Canindé submetidos a dois níveis de alimentação

Mattos

Carvalho²,

Júnior³

et al. 2006

R. Bras. Zootec.

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RESUMO -Foram utilizados 22 cabritos não-castrados (10 Moxotó e 12 Canindé com peso médio inicial de 15 kg) confinados em baias individuais. Os animais foram distribuídos em um delineamento inteiramente casualizado, em arranjo fatorial 2 x 2 (duas raças e dois níveis de alimentação: AV = à vontade e AR = 30% de restrição). Foram avaliados os rendimentos de carcaça quente (RCQ), verdadeiro (RV) e comercial (RC), os cortes da carcaça e o rendimento dos componentes não-carcaça em relação ao peso do corpo vazio (PCV). Cabritos alimentados à vontade apresentaram maiores RCQ e RC e porções comestíveis da carcaça. O rendimento verdadeiro não foi influenciado pelo maior nível de alimentação. Após o abate e resfriamento da carcaça, foram feitos os seguintes cortes: pescoço, paleta, costelas (1ª-5ª), costelas (6ª-13ª), lombo, perna e baixo. Apesar do maior peso (kg) dos cortes dos animais alimentados AV, não foi observada diferença entre seus rendimentos em relação ao peso da carcaça fria. O rendimento da perna foi afetado pelo nível de alimentação, sendo menor para os grupos com nível de alimentação AV. Os rendimentos do fígado, da cabeça e do trato gastrintestinal foram influenciados pelo nível de alimentação. A raça não foi determinante de diferenças nas características de carcaça e dos componentes não-carcaça, assim como no rendimento dos cortes quando o peso e o tamanho à maturidade foram semelhantes. A restrição alimentar afetou o desenvolvimento e a deposição de tecidos nos animais, resultando em menores rendimentos e quilogramas de carcaça fria a ser comercializada. Palavras-chave: caprinos, carne, cortes comerciais, rendimento, vísceras Characteristics of carcass and non-carcass components of Moxotó and Canindé male kids under two feeding levelsABSTRACT -Twenty-two non-castrated male kids (10 Moxotó and 12 Canindé) averaging 15 kg of initial body weight and housed in individual pens were used in this trial. Animals were assigned to a completely randomized design in a 2 x 2 factorial arrangement of treatments [two breeds and two feeding levels: ad libitum (AL) or 30% of feed restriction (FR). Animals fed AL had greater yields of hot carcass, cold carcass, and carcass edible parts compared to those fed FR. It was not observed a significant feeding level effect on true carcass yield. After slaughter and cooling of the carcasses the following cuts were done: neck, shoulder clod, ribs (1 st -5 th and 6 th -13 th ), loin, leg and breast. Although animals fed AL had greater body weights than FR kids, no significant differences were found between treatments for the different carcass cuts when expressed as percentage of cold carcass weight. Hind leg yield was affected by feeding level being lower in animals fed AL. Yields of liver, head, and gut, as percentage of empty body weight, were also affected by feeding level. Feed restriction had a negative effect on development and tissue deposition leading to lower cold carcass yield and weight. It can be concluded that when size and mature weight were similar, breed was not re...

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“…The increase of 1.0% in the level of replacement made it possible to estimate a decrease of 20; 30; 20 and 20 g in the weights, respectively, which is possibly related to a decrease in fat deposition in the body, which, according to Kosloski (2002) is caused by the lower concentration of propionic acid and circulating energy, due to the low content of soluble carbohydrates of the forage cactus (Menezes et al, 2005) and the decrease in the content of metabolizable energy inherent to the level of replacement (2.26 Mcal/kg) compared with the diet with 0% of forage cactus meal (2.75 Mcal/kg). There was no difference in loss by cooling, which is considered adequate, between 3.0 and 4.0%, according to Almeida Junior et al (2004).…”

Section: Resultsmentioning

confidence: 94%

Carcass characteristics and body components of Santa Inês lambs in feedlot fed on different levels of forage cactus meal

Santos¹,

Cézar²,

Sousa

et al. 2011

R. Bras. Zootec.

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-The objective of this study was to evaluate the effect of the replacement of a ground corn diet by a forage cactus meal diet on the carcass characteristics and body components of Santa Inês lambs finished in feedlot. This study was carried out at Estação Experimental de Pendência, belonging to Empresa de Pesquisa Agropecuária da Paraíba S.A. (EMEPA-PB).Forty Santa Inês male lambs in feedlot were used in the experiment. Treatments were randomly assigned to the animals according to a completely randomized design, with four treatments, which consisted of growing replacement levels of ground corn by forage cactus meal: 0, 33, 66 and 100% of substitution and ten replications (lambs). Animals were slaughtered, and the following characteristics were evaluated: body weight, empty body weight, hot carcass weight, cold carcass weight, non-carcass components (NCC), hot carcass yield, cold carcass yield, biological yield, revenue of non components of carcass, revenues of non-carcass components, relative weight and relative value of the commercial cuts, viscera and organs' yield. Averages were submitted to analysis of variance and regression analyses at a 5% level of probability. The replacement levels of ground corn by forage cactus meal had no influence on biological yield, revenue of the non components of carcass, relative weight and relative value of the prime and choice cuts or on the relative weight of viscera and organs. The replacement of ground corn by forage cactus meal, on the ration given to Santa Ines lambs in feedlot does not impact the biological yield, relative weight and relative value of prime and choice cuts or the relative weight of viscera and other organs.

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Desempenho, características de carcaça e resultado econômico de cordeiros criados em creep feeding com silagem de grãos úmidos de milho

Cited by 32 publications

References 14 publications

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

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

Características de carcaça e dos componentes não-carcaça de cabritos Moxotó e Canindé submetidos a dois níveis de alimentação

Carcass characteristics and body components of Santa Inês lambs in feedlot fed on different levels of forage cactus meal

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