Effect of a mixed silage of king grass (Cenchrus purpureus) and forage legumes (Leucaena leucocephala or Gliricidia sepium) on sheep intake, digestibility and nitrogen balance

2019 ◽  
Vol 59 (12) ◽  
pp. 2259
Author(s):  
A. A. Santana ◽  
L. Cheng ◽  
D. M. Verdecia ◽  
J. L. Ramírez ◽  
S. López ◽  
...  

Ensiled king grass (Cenchrus purpureus (Schumach.) Morrone) is commonly used as feed in tropical ruminant production. However, ruminant performance can be limited by low nitrogen (N) content in tropical grass silage. A mixed feed of legume–king grass silage may be an option to improve ruminant production. We investigated the effects of feeding an ensiled mixture of king grass forage and foliage of a browse tree legume, either leucaena (Leucaena leucocephala (Lam.) de Wit) or gliricidia (Gliricidia sepium (Jacq.) Walp), on dry matter (DM) intake, DM digestibility, organic matter (OM) digestibility and N balance of Pelibuey sheep. Twelve male lambs 9–11 months old were blocked by initial bodyweight (33 ± 3 kg, mean ± s.d.) into three groups of four lambs and randomly assigned to one of three feed treatments: king grass silage (KS); mixed king grass and leucaena silage (KLS); and mixed king grass and gliricidia silage (KGS). Results showed that DM and OM were similar among silages. The N content was higher (P < 0.001) in KLS and KGS than in KS. DM intake and DM digestibility were higher (P < 0.001) in KLS and KGS than in KS. OM digestibility was higher (P < 0.001) in KLS than in KS. Nitrogen intake, faecal N, urine volume, urinary N, digested N, N digestibility, N retention and retained N:N intake ratio from KLS and KGS treatments were higher (P < 0.05) than from KS. A lower (P < 0.01) urinary N:N intake ratio was detected from KGS and KLS than from KS. This study demonstrated that, compared with silage made from king grass alone, legume–king grass silage mixtures can improve intake and nutrient digestibility in Pelibuey lambs. Further, N retention can be enhanced when legume–king grass silages are used as feed compared with king grass silage alone.

2020 ◽  
Author(s):  
Ezekiel Taiwo Afolayan

AbstractThis work compares the physiological and yield characteristics of white yam (Dioscorea rotundata – Poir) under Arbuscular mycorrhizal fungi (AMF) inoculation, green manures of Gliricidia sepium, Leucaena leucocephala and other soil amendments. The experiment was conducted on the plot of land that had been overcropped, located at the back of the male Hostel, Federal College of Education, Abeokuta, Ogun State, Nigeria. The land was cleared and heaped at 1m x 1m apart. The experimental design employed was a complete randomized design in 5 replicates. The treatments were Glomus deserticola (GD), Glomus fasciculatum (GF), Gliricidia sepium (GS), Leucaena leucocephala (LL), Poultry manure (PM) and NPK fertilizers. Soils were dug from the heaps, 20 g of the inoculums of AMF (GD/ GF) were poured into the dug hole, seeds were laid on it and covered with soil (for GD & GF treatments). Others were applied at one week after sprouting. Growth and yield Parameters were determined at harvest while relative water and chlorophyll contents were measured forth nightly from 10 weeks after treatment. Data obtained were subjected to ANOVA while means were separated by Duncan multiple range test at P> 0.05. Results showed that growth, yield and physiological characters were enhanced in GD, GD+GF, GS and PM treated plants more than in inorganic fertilizers treated plants. There was a positive significant relationship between white yam’s growth, physiology and tuber yield. The study justifies the use of plant/animal manures and Arbuscular mycorrhizal fungi in place of inorganic fertilizers.


1992 ◽  
Vol 1 (3) ◽  
pp. 291-301 ◽  
Author(s):  
Matti Näsi ◽  
Erkki Aimonen

The nutrient digestibility and protein utilization of undehydrated barley fractions: protein (BP), protein fibre mixture (BPF) and distillers solids (DS) at two levels of inclusion in diets fortified to equal lysine content were assayed with growing pigs in a 6 x 6 Latin square. Dried barley fibre (BF), oat protein (OP) and oat fibre (OF) from integrated starch-ethanol production were evaluated as feed ingredients for pigs in three other trials. DS and OP had a higher essential amino acids content than BP, especially with respect to lysine. All fractions had a rather high ether extract content 46-196 g/kg and their fatty acid composition is presented. BP showed higher protein digestibility than DS (0.931 vs. 0.857) and pigs on BP-diet retained more N than on DS-diet. BF showed a low digestibility of OM and CP and 0.1 inclusion of BF mixed with BP depressed CP digestibility and N-retention. A higher protein supply from cereal protein in the diet promoted N-retention but decreased protein utilization. OP had high digestibility and OF was more digestible than BF. The study confirmed the high digestibility and energy values of the proteinous grain fractions and a high protein utilization when adequately fortified with lysine. The fibrous fractions have a rather low nutrient digestibility and their use in pig diets is therefore limited.


2016 ◽  
Vol 7 (2) ◽  
pp. 56-72
Author(s):  
Litsy Gutiérrez Castro ◽  
Andrea Yamily Güechá Castillo

En este documento se destaca la importancia de las especies arbóreas empleadas en la alimentación de animales de interés zootécnico, y cómo las diferentes alternativas de conservación permiten suministrar un alimento de excelente calidad nutricional en periodo de escasez. Como es sabido, la alimentación eficiente es uno de los aspectos más importantes en la producción animal, puesto que de ésta depende no solo el rendimiento zootécnico de los animales, sino también la rentabilidad económica del productor. Para brindar una buena dieta, se deben suministrar alimentos con la cantidad necesaria de nutrientes en las condiciones físicas óptimas para qué los mismos sean utilizados metabólicamente de forma eficiente, y así poder obtener el máximo rendimiento en la producción. El suministro del alimento en forma no convencional permite explorar nuevas alternativas que brinden alimentos de buena calidad. En la búsqueda de fuentes alimenticias de bajo costo en el trópico, se ha incluido la evaluación de follajes arbóreos por su alta disponibilidad; la utilización de harinas de follajes de plantas se ha considerado como opción para la sustitución parcial o total de proteína proveniente principalmente de granos y cereales para la alimentación animal, siendo en la actualidad una de las estrategias de mayor investigación, en donde al facilitar su inclusión en las dietas balanceadas de los animales, se convierte en una alternativa económica que permitirá sustituir en parte el uso de alimento concentrado comercial. Especies arbóreas como el matarratón (Gliricidia sepium), leucaena (Leucaena leucocephala), guacimo (Guazuma ulmifolia), cayeno (Hibiscus rosa-sinensis) y morera (Morus alba) son de interés para el productor debido a su potencial de producción (21.93-30.6 ton/ha/MS).


2016 ◽  
Vol 48 (5) ◽  
pp. 1057-1064 ◽  
Author(s):  
Nguyen Thien Truong Giang ◽  
Metha Wanapat ◽  
Kampanat Phesatcha ◽  
Sungchhang Kang

2019 ◽  
Vol 2 (6) ◽  
pp. 19-36 ◽  
Author(s):  
Patricia Moreno-Casasola ◽  
Dulce Infante Mata ◽  
Carolina Madero-Vega

Las selvas bajas caducifolias proveen recursos importantes a las comunidades, por lo que conocer la percepción de este recurso permite identificar cuáles son las especies más convenientes para iniciar la restauración de su cobertura arbórea y diversidad. A través de entrevistas se determinaron 98 especies útiles en la región costera de Actopan, Veracruz. Los usos más frecuentes fueron leña, construcción, postes, cerca viva, carbón, comestible y medicinal. Se eligieron a Gliricidia sepium y a Leucaena leucocephala para realizar experimentos de germinación y el establecimiento en una plantación en dunas costeras, ubicando plántulas debajo del dosel de los árboles (sombra) y en áreas cubiertas por vegetación herbácea (exposición al sol). La germinación de semillas recién colectadas de L. leucocephala fue de 50% en condiciones de sombra y de sol; sin embargo, conforme pasa el tiempo pierden viabilidad. Las semillas de G. sepium presentaron 75% de germinación en varios de los tratamientos aplicados, además no perdieron viabilidad después de ocho meses de almacenamiento. Para las plántulas la condición más benéfica para su establecimiento fue la de sombra con una supervivencia de 86% para L. leucocephala y de 38% para G. sepium. El uso de hidrogel contribuyó a obtener dicha respuesta durante la temporada de secas, al reducir la necesidad de riego.


2019 ◽  
Vol 94 (1) ◽  
pp. 251-268 ◽  
Author(s):  
Ahmed Bageel ◽  
Michael D. H. Honda ◽  
James T. Carrillo ◽  
Dulal Borthakur

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