High performance of growing lambs grazing Paspalum notatum INIA Sepé with energy-protein supplement including sorghum-DDGS
Alto desempeño de corderos pastoreando Paspalum notatum INIA Sepé con suplementación energético-proteica que incluye DDGS-sorgo
Alto desempenho de cordeiros pastando Paspalum notatum INIA Sepé com suplemento protéico-energético incluindo sorgo-DDGS
Editor(es): Astigarraga, Laura
Resumen:
Sorghum dried distillers’ grain with soluble (S-DDGS) has not been utilized as supplement in lamb growing and finishing diets under grazing conditions in summer. The hypothesis was that the performance of post-weaning lambs grazing Paspalum notatum (PN) INIA Sepé supplemented with an energy-protein diet (whole sorghum grain [SG], and soybean meal [SM]) is not reduced by the inclusion of 40% S-DDGS. During 82 days, in summer, 42 Merino Dohne male lambs (130 ± 7.6 days of age, 32 ± 2.4 kg of body weight [BW], and 2.2 ± 0.2 body condition score [BCS]) were evaluated, in a completely random experimental design with three treatments and two replicates each (n = 14 each one). All lambs grazed PN INIA Sepé and in two treatments they were daily supplemented (1.7% BW) with different components. The treatments were: PN (control group, no supplementation), SGSM (70% SG, 30% SM) and DDGS (45% SG, 40% S-DDGS, and 15% SM). Supplemented lambs had higher (P<0.0001) body weight gain (BWG), final BW and wool growth (140 and 126 g/a/d, 43.5 and 42.4 kg; 1814 and 1892 µg/cm²/d for DDGS and SGSM, respectively) than control lambs (40 g/a/d; 35.5 kg; 1353 µg/cm²/d) (P<0.0001), without differences between supplemented groups. Gastrointestinal nematodes infestation (GIN) was affected by the treatments on day 69, where supplemented animals showed lower infestation levels than control lambs (P=0.0024). The inclusion of S-DDGS in the supplement did not reduce the productive performance of the lambs when the concentration of crude protein and energy remained constant.
El grano de destilería seco con solubles de sorgo (DDGS-S) no se ha utilizado como suplemento en dietas de engorde de corderos bajo pastoreo en verano. La hipótesis planteada es que el desempeño de corderos posdestete pastoreando Paspalum notatum (PN) INIA Sepé y suplementados con una ración energético-proteica (grano entero de sorgo y harina de soja) no se reduce con la inclusión de un 40% de DDGS-S. El diseño experimental fue completamente al azar con tres tratamientos y dos repeticiones cada uno (n = 14 cada uno), evaluando 42 corderos machos Merino Dohne (130 ± 7,6 días de edad, 32 ± 2,4 kg de peso vivo [PV], y 2,2 ± 0,2 de condición corporal [CC]) en verano (84 días). Todos los corderos pastorearon PN INIA Sepé, dos tratamientos fueron suplementados diariamente (1,7% PV). Los tratamientos fueron: PN (sin suplementación), SGSM (70% grano sorgo, 30% harina de soja) y DDGS (45% grano sorgo, 40% DDGS-S y 15% harina de soja). Los corderos suplementados tuvieron mayor (P<0,0001) ganancia de peso, peso final y crecimiento de lana (140 y 126 g/a/d; 43,5 y 42,4 kg; 1814 y 1892 µg/cm²/d para DDGS y SGSM, respectivamente) que los corderos control (40 g/a/d; 35,5 kg; 1353 µg/cm²/d) (P<0,0001), sin diferencias entre los suplementados. La infestación por nemátodos gastrointestinales fue afectada por los tratamientos en el día 69, los animales suplementados mostraron menores niveles de infestación que los corderos control (P=0.0024). La inclusión de DDGS-S en el suplemento no redujo el desempeño productivo de los corderos cuando la concentración de proteína cruda y la energía permanecieron constantes.
Grãos de destilaria desidratados de sorgo com solúveis (DDGS-S) não têm sido utilizados como suplemento em dietas de crescimento e terminação de cordeiros em condições de pastejo no verão. Postulamos que o desempenho de cordeiros pós-desmame em Paspalum notatum (PN) INIA Sepé suplementado com uma ração energético-protéica (grão de sorgo e farelo de soja) não é reduzido pela inclusão de 40 % DDGS-S. Em um delineamento experimental inteiramente casualizado com três tratamentos e duas repetições cada (n = 14 cada um), avaliamos 42 cordeiros Merino Dohne (130 ± 7,6 dias de idade, 32 ± 2,4 kg de peso corporal -PC- e 2,2 ± 0,2 escore de condição corporal) no verão (84 dias). Todos os cordeiros foram alimentados com PN INIA Sepé e dois tratamentos suplementados diariamente (1,7 % do PC). Os tratamentos foram: PN (sem suplementação); SGSM (70 % grão de sorgo, 30 % farelo de soja) e DDGS (45 % grão de sorgo, 40 % DDGS-S e 15 % farelo de soja). Cordeiros suplementados tiveram maior (P<0.0001) ganho de peso corporal, peso corporal final e crescimento de lã (140 e 126 g/a/d; 43,5 e 42,4 kg; 1814 e 1892 µg/cm²/d para DDGS e SGSM, respectivamente) do que cordeiros controle (40 g/a/d; 35,5 kg; 1353 µg/cm²/d) (P<0.0001), sem diferenças entre os suplementados. A infestação por nematóides gastrointestinais foi afetada pelos tratamentos no dia 69, animais suplementados tiveram uma infestação menor do que os cordeiros controle (P=0.0024). A inclusão de DDGS-S no suplemento não reduziu o desempenho produtivo dos cordeiros quando a concentração de proteína bruta e energia desta permaneceu constante.
2022 | |
lambs body weight gain wool growth DDGS grazing corderos ganancia de peso crecimiento de lana pastoreo cordeiros ganho de peso corporal crescimento de lã pastagem |
|
Inglés | |
Universidad de la República | |
COLIBRI | |
https://hdl.handle.net/20.500.12008/31019 | |
Acceso abierto | |
Licencia Creative Commons Atribución (CC - By 4.0) |
Sumario: | Sorghum dried distillers’ grain with soluble (S-DDGS) has not been utilized as supplement in lamb growing and finishing diets under grazing conditions in summer. The hypothesis was that the performance of post-weaning lambs grazing Paspalum notatum (PN) INIA Sepé supplemented with an energy-protein diet (whole sorghum grain [SG], and soybean meal [SM]) is not reduced by the inclusion of 40% S-DDGS. During 82 days, in summer, 42 Merino Dohne male lambs (130 ± 7.6 days of age, 32 ± 2.4 kg of body weight [BW], and 2.2 ± 0.2 body condition score [BCS]) were evaluated, in a completely random experimental design with three treatments and two replicates each (n = 14 each one). All lambs grazed PN INIA Sepé and in two treatments they were daily supplemented (1.7% BW) with different components. The treatments were: PN (control group, no supplementation), SGSM (70% SG, 30% SM) and DDGS (45% SG, 40% S-DDGS, and 15% SM). Supplemented lambs had higher (P<0.0001) body weight gain (BWG), final BW and wool growth (140 and 126 g/a/d, 43.5 and 42.4 kg; 1814 and 1892 µg/cm²/d for DDGS and SGSM, respectively) than control lambs (40 g/a/d; 35.5 kg; 1353 µg/cm²/d) (P<0.0001), without differences between supplemented groups. Gastrointestinal nematodes infestation (GIN) was affected by the treatments on day 69, where supplemented animals showed lower infestation levels than control lambs (P=0.0024). The inclusion of S-DDGS in the supplement did not reduce the productive performance of the lambs when the concentration of crude protein and energy remained constant. |
---|