Bancos de proteína de leucena e de guandu para suplementação de ovinos mantidos em pastagens de capim-buffel

Souza, Ariani Impieri de; Espíndola, Gastão Barreto

doi:10.1590/s1516-35982000000200007

Cited by 9 publications

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“…The Buffel grass (Cenchrus ciliaris) is one of them and may be used (GUIMARÃES FILHO;SOARES, 1999;SANTOS et al, 2005). According to Souza and Espíndola (1999) and Souza and Espíndola (2000) the dormant Buffel grass pasture may produce more than 4,500 kg/year of dry matter.…”

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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-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: 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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“…Using 10 animals ha -1 , like in the present study, Souza and Espíndola (2000) related an average daily gain variation of .012 and .017 kg animal -1 day -1 , while using 4 animals ha -1 , the average daily gain reported was .027 to .050 kg animal -1 day -1 suggesting the use of moderate stocking rate in the pastures of buffel grass in dry or rainy-dry period to improve the individual performance of lambs or to maximize the period of use of dormant buffel grass pastures. 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.…”

Section: Resultsmentioning

confidence: 61%

“…Buffel grass (Cenchrus ciliaris L.) is one of them (GUIMARÃES FILHO;SOARES, 1999;SOUZA;ESPÍNDOLA, 2000;SANTOS et al, 2005). According to Souza and Espíndola (1999) this pasture may produces more than 4,500 kg year -1 of dry matter.…”

Section: Introductionmentioning

confidence: 99%

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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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“…Seu uso na dieta alimentar humana (vagens e sementes) é relatado na América Central e Indonésia (NAS 1977). No Brasil, esta espécie é encontrada nas regiões Sul e Sudeste em beiras de estradas, pomares, terrenos baldios e invadindo áreas de pastagens (Lorenzi 2000) e, no Nordeste, foi introduzida como alternativa para o suprimento forrageiro do gado (Souza & Espíndola 2000). No arquipélago de Fernando de Noronha tem se tornado bastante abundante e ocupado grandes áreas (S. R. Ziller, com.…”

Section: Materials Biológicounclassified

Desempenho germinativo da invasora Leucaena leucocephala (Lam.) de Wit. e comparação com Caesalpinia ferrea Mart. ex Tul. e Caesalpinia pulcherrima (L.) Sw. (Fabaceae)

Fonseca

Jacobi

2011

Acta Bot. Bras.

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). Success in establishing and colonizing new areas is directly related to germination behaviour of seeds under local environmental conditions. Th is work aimed to compare germination performance of the exotic invader Leucaena leucocephala to two legumes (Caesalpinia ferrea, native, and C. pulcherrima, exotic) which are not considered invasive. Non-scarifi ed seeds were exposed to constant temperatures of 15, 20, 25, 30, 35 and 40ºC, within a photoperiod of 12 hours, for 100 days. Both fi nal germination percentage and germination speed showed signifi cant diff erences among the three species. C. ferrea had low germination percentage, with optimal germination temperature at 25ºC, reaching germination percentage of 59% and germination speed of 0.68 seeds d -1. In contrast, C. pulcherrima had high germination percentages at all temperatures tested, with highest germinability from 20 to 40ºC. Seeds of L. leucocephala had the lowest germination percentage and optimal germination temperature was 35ºC. Th e germination performance of this exotic is not outstanding, and factors such as propagule pressure, natural scarifi cation and good performance in other life stages must contribute to its invasiveness.

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Bancos de proteína de leucena e de guandu para suplementação de ovinos mantidos em pastagens de capim-buffel

Cited by 9 publications

References 0 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

Desempenho germinativo da invasora Leucaena leucocephala (Lam.) de Wit. e comparação com Caesalpinia ferrea Mart. ex Tul. e Caesalpinia pulcherrima (L.) Sw. (Fabaceae)

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