Níveis de energia no desempenho e características da carcaça de cordeiros alimentados em creep feeding

Garcia, Cledson Augusto; Costa, Ciniro; Monteiro, Alda Lúcia Gomes; Neres, Marcela Abbado; Rosa, Guilherme Jordão de Magalhães

doi:10.1590/s1516-35982003000600012

Cited by 22 publications

(26 citation statements)

References 12 publications

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“…Similar results were also reported by Garcia et al (2003), who evaluated the productive performance and carcass traits of lambs receiving increasing energy levels in creep feed rations.…”

Section: Resultssupporting

confidence: 87%

Carcass traits and meat cuts of lambs receiving increasing levels of concentrate

Voltolini¹,

Moraes²,

Araújo³

et al. 2011

Rev. Ciênc. Agron.

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-The use of concentrate for sheep grazing Buffel grass may improve the productive performance and carcass traits of animals. The objective of present trial was to evaluate the productive performance and carcass traits of sheep grazing Buffel grass receiving different concentrate levels. The concentrate levels used were: 0; 0.33; 0.66 and 1.0% of dry matter in relation to body weight. Forty lambs were used, ten animals by treatments, with 16.5 ± 2.0 kg of initial body weight and 20.97 kg final body weight, distributed in four groups. The experimental design was a completely randomized with ten replicates by treatments. The concentrate levels did not influence the cold and hot carcass weight. However, the increasing levels of concentrate promoted higher cold and hot carcass yield. Blood, head, hide, heart, lung, kidney and liver (non carcass components) weights and proportion of slaughtered body weight (SBW) and leg, shoulder, brisket, rib, neck and loin weights (commercial meat cuts) were not affected by increasing levels of concentrate. Full intestine in proportion of SBW was lower with the increase of concentrate levels, while the brisket's weight was higher with increase of concentrate.Key words -Buffel grass. Cenchrus ciliaris. Concentrate supplementation.Resumo -O uso de concentrados para ovinos mantidos em pastagens de capim-bufel pode melhorar o desempenho produtivo e os parâmetros de carcaça dos mesmos. O objetivo do presente estudo foi avaliar o desempenho produtivo e os parâmetros de carcaça de ovinos mantidos em pastagens de capim-bufel recebendo doses crescentes de suplemento concentrado. As doses de concentrado utilizadas foram: 0; 0,33; 0,66 e 1,0% na matéria seca do suplemento em relação ao peso corporal dos animais. Foram utilizados 40 cordeiros, dez animais por tratamento, com peso corporal inicial médio de 16,5 ± 2,0 kg e peso final de 20,97 kg, distribuídos em quatro grupos. O delineamento experimental adotado foi o inteiramente casualizado. As doses de concentrado não influenciaram o peso de carcaça quente nem fria. Entretanto, o aumento nas doses de concentrado proporcionou maior rendimento de carcaça quente e fria. O peso e a proporção do peso corporal de abate (PCA) de sangue, cabeça, couro, coração, pulmão, rim e fígado (componentes não carcaça) e o peso e proporção da meia carcaça de pernil, paleta, carré, costela, pescoço e lombo (cortes cárneos comerciais) não foram afetados pelo aumento nas doses de concentrado. O intestino cheio em proporção ao PCA foi menor com o aumento de concentrado, enquanto que o peso do carré aumentou com as maiores doses de concentrado. divided in four paddocks of 1.0 ha. Ten lambs were distributed by paddock. In each week the animals were changed of the paddocks. Palavras-chave -Forty castrated lambs were used (ten by treatment), with initial body weight of 16.5 ± 2.0 kg. The experimental design was a completely randomized with ten replicates by treatments.Petrolina's climate is BSwh' semi-arid, according to Köeppen classification. Climate data regis...

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“…Similar results were also reported by Garcia et al (2003), who evaluated the productive performance and carcass traits of lambs receiving increasing energy levels in creep feed rations.…”

Section: Resultssupporting

confidence: 87%

Carcass traits and meat cuts of lambs receiving increasing levels of concentrate

Voltolini¹,

Moraes²,

Araújo³

et al. 2011

Rev. Ciênc. Agron.

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“…Rib yield was similar to that acquired by Zundt et al (2006), with Santa Inês lambs (8.27%), and average rib weight (0.66 kg) was superior to that obtained by Garcia et al (2003), of 0.37 kg.…”

Section: Resultssupporting

confidence: 85%

“…Gunn et al (2010a;2010b), when feeding sheep with 0 to 45% or 0 to 20% glycerin in the diet, respectively, did not find any effect of glycerin on loin eye area, having reported the values of 17.2 to 20.5 cm 2 . In this study, the longest and shortest loin lengths were superior to those found by Garcia et al (2003), who worked with crossbreed lambs slaughtered at 31 kg, and observed 53.2 mm for longest loin length and 28.6 mm for shortest loin length.…”

Section: Resultscontrasting

confidence: 66%

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Performance and carcass characteristics of lambs fed on diets supplemented with glycerin from biodiesel production

et al. 2011

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-This study was carried out to evaluate the influence of diets supplemented with glycerin as an alternative ingredient to corn on the performance and carcass characteristics of Santa Inês confined lambs. The study involved 27 lambs aged 90 days, having an average initial weight of 26.33 ± 0.15 kg. Lambs were randomly distributed into a control group and groups with diets containing 15 and 30% glycerin in the total feed. Diet was formulated with 40% roughage and 60% concentrate.The experimental design was completely randomized, and the production performance and carcass characteristics were analyzed by analysis of variance, and the subjective carcass characteristics, by general linear models. The daily average gain was 0.21, 0.24 and 0.23 kg/day; feeding conversion was 6.39, 5.73 and 5.92 kg of diet/kg BW for control animals, and those fed with 15 or 30% glycerin, respectively, without treatment differences. Lambs were slaughtered, weighing 34 to 36 kg, and average weight of the cold carcass and commercial carcass yield were evaluated. The results were, respectively, 15.97 kg and 49.18%, for control, 15.96 kg and 48.31% for animals fed with 15% glycerin, and 15.79 kg and 47.87% for those treated with 30% glycerin, with no treatment effects. Meat tenderness and cooking loss averages were not affected by diets, with 5.07 kg and 40.45%, 5.10 kg and 40.81%, and 5.27 kg and 39.04%, respectively, for control, and those fed with 15 or 30% glycerin. Therefore, it is possible to conclude that up to 30% of medium purity glycerin in the dry matter of the diet can be used to replace corn, without any negative effect on lamb performance or carcass characteristics.

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“…Esperava-se, no entanto, que o ganho médio diário dos cordeiros apresentasse comportamento linear positivo e influenciasse também o comportamento da idade ao abate, em virtude dos níveis crescentes, tanto de proteína bruta quanto de energia metabolizável (Tabela 1), como observado por Garcia et al (2003a) ao avaliarem diversos níveis de energia (2,60; 2,80 e 3,00 Mcal/kg MS) na ração de cordeiros Suffolk com acesso a cocho privativo. O resultado obtido neste trabalho pode estar relacionado ao fato de as fontes protéicas e energéticas serem, em boa parte, de suplementos alimentares diferentes, o que resultou em eficiência alimentar.…”

Section: Resultsunclassified

Desempenho e características de carcaça de cordeiros alimentados em comedouros privativos recebendo rações contendo semente de girassol

Macedo¹,

Silveira

Garcia

et al. 2008

R. Bras. Zootec.

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RESUMO -Avaliaram-se o desempenho e as características quali e quantitativas da carcaça de cordeiros alimentados com ração contendo semente de girassol. Utilizaram-se 16 cordeiros distribuídos aleatoriamente em um delineamento inteiramente casualizado com quatro tratamentos (0,00; 6,60; 13,20 weighed every 14 days and kept with the ewes until they reached 28 kg, when were slaughtered, after solid fasting for 18 hours, to obtain slaughter body weight and recording hot carcass weight and gastrointestinal content, used in the calculation of empty body weight. The carcasses were kept for 24 hours in a cold room temperature of 5 o C to obtain cold carcass weight. Sunflower seed levels in the diet did not affect the performance characteristics of lambs. However, the hot carcass weight and cold carcass weight, the weights of neck, low, shoulder, rib, thru rib, loin and carcass commercial yields and rib, thru rib, loin, shoulder, neck and low showed effect of sunflower seed addition. The addition of sunflower seed in the diet does not influence the qualitative and morphometric characteristics of carcass of lambs.Key Words: fatty acids, cuts, sheep IntroduçãoNa última década, as importações nos mercados nacional e internacional de ovinos vivos, carcaças congeladas e carcaças de cordeiros aumentaram 100 e 300% (Couto, 2001). Entretanto, a cadeia agroindustrial nacional não tem eficiência na oferta do produto, pois os animais abatidos geralmente apresentam peso desuniforme ao abate e idade avançada, além de carne de baixa qualidade e de menor aceitação pelo consumidor.

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Níveis de energia no desempenho e características da carcaça de cordeiros alimentados em creep feeding

Cited by 22 publications

References 12 publications

Carcass traits and meat cuts of lambs receiving increasing levels of concentrate

Carcass traits and meat cuts of lambs receiving increasing levels of concentrate

Performance and carcass characteristics of lambs fed on diets supplemented with glycerin from biodiesel production

Desempenho e características de carcaça de cordeiros alimentados em comedouros privativos recebendo rações contendo semente de girassol

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