Urea levels in multiple supplement for lambs grazing on buffelgrass

Voltolini, Tadeu Vinhas; Moraes, Salete Alves de; Araújo, Gherman Garcia Leal de; Oliveira, P. L. T. de; Pereira, L. G. R.

doi:10.4025/actascianimsci.v32i4.7829

Cited by 7 publications

(11 citation statements)

References 9 publications

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“…Voltolini et al (2009a) evaluated the carcass traits of Santa Ines lambs grazing Tifton 85 grass non supplemented or not with 0.20 kg/day and they observed 41.94% of hot carcass weight to non supplemented animals and 43.30% to 44.64% for supplemented animals, in the same region. In addition, Voltolini et al (2009b) found values of 43.89 to 44.50 kg for the hot carcass weight to lambs grazing Buffel grass receiving concentrate supplementation in the dry period in Brazilian Northeast semiarid.…”

Section: Resultsmentioning

confidence: 99%

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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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Section: Resultsmentioning

confidence: 99%

“…However, the production system in this region is characterized as extensive or ultra-extensive, showing low stocking rate of native pastures, low meat and milk yield, low reproductive efficiency of animals and high mortality rate of herds, resulting in a low economic performance to farmers (MOREIRA et al, 2008;VOLTOLINI et al, 2009b).…”

Section: Introductionmentioning

confidence: 99%

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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“…Voltolini et al (2010) evaluated the productive performance of Brazilian Northeast semi-arid native lambs and reported an average daily gain variation of 0.025 to 0.047 kg animal -1 day -1 in the dry period in the same region. These results are similar to the observed in the present trial and indicate a possibility to obtain low to moderate average daily gain in the dry or rainy dry period of year, promoting an opportunity to produce, to avoid weight loss or death of animals.…”

Section: Resultsmentioning

confidence: 99%

Concentrate levels for lambs grazing on buffel grass

Voltolini¹,

Moraes²,

Araújo³

et al. 2011

Rev. Ciênc. Agron.

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-Use of concentrate for lambs grazing buffel grass may improve animal performance and animal traits. The objective of the present trial was to evaluate the final body weight, average daily gain, total weight gain and carcass traits (cold and hot carcass weights, cold and hot dressing percentages) of lambs grazing buffel grass and receiving different concentrate levels (0; 0.33; 0.66 and 1.0% of dry matter in relation to body weight). Forty lambs were used, ten animals by treatment, with 16.5 ± 2.0 kg of initial body weight, distributed in four groups. Experimental design was a completely randomized with ten replicates. Concentrate levels did not influence the final body weight, the average daily gain, total weight gain and cold and hot carcass weights. However, the increase of concentrate levels promoted higher cold and hot carcass yields. Key words -Cenchrus ciliaris. Concentrate supplementation. Lamb 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 peso corporal final, o ganho médio diário e ganho de peso total além dos parâmetros de carcaça (pesos e rendimentos de carcaça quente e fria) de ovinos mantidos em pastos de capim-bufel recebendo doses crescentes de suplemento concentrado (0; 0,33; 0,66 e 1,0% na matéria seca do suplemento em relação ao peso corporal dos animais). Foram utilizados 40 ovinos machos, dez animais por tratamento, com peso corporal inicial médio de 16,5 ± 2,0 kg, distribuídos em quatro grupos. O delineamento experimental adotado foi o inteiramente casualizado com dez repetições. As doses de concentrado não influenciaram o peso corporal final, o ganho médio diário, o ganho de total, os pesos de carcaça quente e fria. Entretanto, o aumento nas doses de concentrado proporcionaram maiores rendimentos de carcaça quente e fria.Palavras-chave -Cenchrus ciliaris. Suplementação com concentrado. Suplementação de cordeiros.

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“…Subsequently, it enters senescence and rapidly loses its nutritional value. Voltolini et al (2010), evaluating performance of sheep grazing deferred buffelgrass supplied with urea, verified no more than 47 g daily gain and stated this low performance is due to difficulty of grazing deferred buffelgrass because pasture had high stem:leaf ratio. Thus, the cut, processing, and use in feedlot could improve animal performance.…”

Section: Introductionmentioning

confidence: 99%

Substitution of soybean meal for urea in diets based on deferred buffelgrass hay for feedlot sheep

et al. 2018

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The objective of this study was to evaluate the effect of substituting soybean meal for urea in diets based on deferred buffelgrass on the performance of feedlot sheep. Thirty mixed-breed sheep with an average initial body weight of 17±1.5 kg were distributed in a completely randomized design in which the experimental treatments consisted of five diets with six replicates. Diets were composed of deferred buffelgrass plus concentrates and calculated to be isoproteic. Treatments were represented by the substitution of soybean meal for the urea levels (0, 25, 50, 75, and 100%). Nutrient intake did not differ among animals fed diets with urea levels. Hot and cold carcass weights, hot and cold carcass dressing percentages, initial and final pH, and weight of commercial cuts did not differ among animal fed diets with urea levels. There was no difference for non-carcass components among animals, except for the empty carcass, gall bladder, and perirenal fat weights, which were influenced by dietary urea levels. Substituting the crude protein from soybean meal for the protein from urea provides a similar performance in sheep consuming deferred buffelgrass.

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Urea levels in multiple supplement for lambs grazing on buffelgrass

Cited by 7 publications

References 9 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

Concentrate levels for lambs grazing on buffel grass

Substitution of soybean meal for urea in diets based on deferred buffelgrass hay for feedlot sheep

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