Herbage yields of pigeonpea (Cajanus cajan) accessions in a humid tropical environment as affected by pruning management

1995 ◽  
Vol 125 (2) ◽  
pp. 227-232 ◽  
Author(s):  
J. Cobbina

SUMMARYTwelve accessions of pigeonpea (Cajanus cajan [L.] Millsp.) were grown on an Alfisol in a humid ecozone in Nigeria in 1989. At 4 and 8 months after planting (MAP), the primary growth was cut to determine the effect of age at first pruning on stump survival and coppice regrowth, and also on total herbage yield in a 12-month pruning cycle. It was clear that a height of 3 m or more is adequate for pigeonpea to receive its first cut with only 10% stool mortalities. Cutting the primary shoot at 8 MAP (in the dry season) ensured greater stump survival and also stimulated rapid coppice shoot regrowth, indicating the advantage of coppicing in the dry season and also at maturity. The total leaf and wood dry matter (DM) production in a 12-month cycle is greatest if the primary shoot was first cut at 8 MAP. This suggests that allowing the trees to become established is beneficial in the pruning management of pigeonpea. Accessions 11563 and 11575 have the ability to produce 7 t/ha of leaf DM from two prunings when first cut at 8 MAP, and significantly outperformed the local variety. The study revealed that pigeonpea does not coppice well and its biomass yields are much lower than that of Leucaena leucocephala.

2019 ◽  
Vol 17 (1) ◽  
Author(s):  
Ruslan A. Gopar ◽  
S. Martono ◽  
Muhamad N. Rofiq ◽  
Windu N.

The objective of this experiment was to obtain forage/ cover crops productivity and carrying capacity for ruminant animals in Pelalawan Regency, Riau in the dry season. Data were collected from civil palm oil plantations at the aged 7, 10 and 14 years in the end of dry season with a destructive sampling method. Sampling used line intercept method which every hectare were picked 10 points by using a pair of 1 m2 sized quadrant. The result showed that the number of vegetations/ cover crops in oil palm plantations aged 7, 10 and 14 years was 42 types.The proportion of forage which consist grass, legume and ferns was diverse at each age of oil palm plantations. Forage production under oil palm plantations aged 7, 10 and 14 years were 2,571 kg/ha, 1479.76 kg/ha and 1417.22 kg/ha as fed and amounted to 811.41 kg/ ha, 471, 15 kg/ ha and 456.91 kg/ ha in the dry matter production. Average carrying capacities of oil palm plantations aged 7, 10 and 14 years was 0.36 Animal units (AU)/ha/year, 0.21 AU/ha/year and 0.20 AU/ ha/year.Penelitian ini bertujuan untuk mengetahui potensi jumlah covercrop dan kapasitas tampungnya di kebun sawit sebagai sumber pakan hijauan ruminansia pada musim kemarau di kabupaten Pelalawan, Riau. Pengambilan data dilakukan di perkebunan kelapa sawit yang berumur 7, 10 dan 14 tahun milik rakyat pada akhir musim kemarau. Pengambilan sampel dengan destructive sampling method menggunakan metode garis berpetak memakai kuadran berukuran 1m2 dengan jumlah sampel tiap area sebanyak 10 titik. Berdasar hasil pengukuran diperoleh hasil jumlah vegetasi/ covercrop yang ada di kebun sawit berumur 7, 10 dan 14 tahun sebanyak 42 jenis yang bervariasi tiap umur tanaman sawit. Proporsi hijauan yang ada meliputi jenis rumput, legume dan paku-pakuan bervariasi pada tiap umur kebun sawit. Produksi hijauan yang ada di bawah kebun sawit berumur 7, 10 dan 14 tahun berturut-turut 2.571 kg/ha, 1.479,76 kg/ha dan 1.417,22 kg/ha dalam bentuk segar serta sebesar 811,41 kg/ha, 471,15 kg/ha dan 456,91 kg/ha dalam bahan kering. Kapasitas tampung dari kebun sawit berumur 7, 10 dan 14 tahun adalah 0,36 satuan ternak (ST)/ha, 0,21 ST/ha dan 0,20 ST/ha.Keywords: cover crops, oil palm plantation, forage, ruminant, dry season, Pelalawan


2004 ◽  
Vol 34 (3) ◽  
pp. 947-949 ◽  
Author(s):  
João Tavares Nascimento ◽  
Ivandro de França da Silva

Para uso como adubo verde em um experimento em Alagoinha-PB, avaliaram-se doze espécies de leguminosas: crotalária (Crotalaria juncea L), guandu (Cajanus cajan L), guandu anão (Cajanus cajan (L) Millsp), calopogônio (Calopogonium mucunoides L), feijão-de-porco (Canavalia ensiformis L), lab-lab (Dolichos lab lab L), kudzu tropical (Pueraria phaseoloides L), siratro (Macroptilium atropurpureum L), leucena (Leucaena leucocephala L), cunhã (Clitoria ternatea L), mucuna preta (Styzolobium aterrimum L), e mucuna cinza (Styzolobium cinereum Piper e Tracy), no DBC com 12 tratamentos, em parcelas de 20m2, com três repetições. Constataram-se as maiores produções de fitomassa para leucena, guandu, mucuna preta, kudzu tropical, feijão-de-porco e cunhã, enquanto que para a crotalária, a menor produção. A fitomassa do kudzu tropical mostrou-se com melhor qualidade para a incorporação.


Bragantia ◽  
2008 ◽  
Vol 67 (4) ◽  
pp. 875-882 ◽  
Author(s):  
Andréia Araújo Lima Leite ◽  
Altamiro Souza de Lima Ferraz Junior ◽  
Emanoel Gomes de Moura ◽  
Alana das Chagas Ferreira Aguiar

O cultivo em aléias tem sido recomendado como alternativa para a substituição da agricultura de corte e queima, no trópico úmido, devido à grande capacidade de produção de matéria orgânica e de reciclagem de nutrientes, mas algumas dúvidas quanto à sustentabilidade e à competição interespecífica são persistentes. O objetivo no trabalho foi avaliar a viabilidade da cultura do milho em um sistema de cultivo em aléias de leguminosas arbóreas. O delineamento experimental utilizado foi em blocos casualisados, com quatro repetições dos tratamentos: aléias de sombreiro (Clitoria fairchildiana), ingá (Inga edulis), guandu (Cajanus cajan) e leucena (Leucaena leucocephala) e uma testemunha sem aléias. Foram avaliadas a remobilização de carbono e nitrogênio, massa de grãos, massa de mil grãos e competição interespecífica entre as cultivares de milho e as leguminosas. A produção de grãos foi maior nas parcelas com C. fairchildiana e L. leucocephala. A produtividade do híbrido de milho foi superior à da variedade em todos os tratamentos. A produtividade e a massa de mil grãos de milho não são negativamente afetadas pela distância da linha da leguminosa arbórea. Esse estudo conclui que o sistema de aléias com leguminosas arbóreas é uma alternativa importante ao manejo sustentável dos agroecossistemas no tropico úmido. Além disso, nessa região a produtividade em grãos na cultura do milho é favorecida no sistema de aléias preeestabelecidas com as leguminosas arbóreas sombreiro, ingá e leucena e pela utilização de genótipos eficientes no aproveitamento do nitrogênio, cujo sincronismo entre a liberação e a absorção do N aplicado por meio das leguminosas deve ser aprimorado.


2006 ◽  
Vol 35 (2) ◽  
pp. 613-617 ◽  
Author(s):  
Cristina Mattos Veloso ◽  
Norberto Mario Rodriguez ◽  
Gleidson Giordano Pinto de Carvalho ◽  
Aureliano José Vieira Pires ◽  
Gerson Barreto Mourão ◽  
...  

Foram determinadas as degradabilidades in situ da MS e PB dos folíolos de três leguminosas tropicais leucena (Leucaena leucocephala (Lam.) de Wit), guandu (Cajanus cajan (L.) Millsp.) e soja perene (Neonotonia wightii) e de folhas de outras duas forrageiras tropicais rami (Boehmeria nivea (L.) Gaudich) e mandioca (Manihot esculenta Crantz). Amostras de 3 g (guandu, soja e rami) ou 5 g (leucena e mandioca) do material foram incubadas no rúmen de quatro novilhos por períodos de 3, 6, 12, 18, 24 e 48 horas. As degradabilidades efetivas da MS e da PB para a taxa de passagem de 5% hora foram elevadas (acima de 60%). As taxas de degradação, exceto a do guandu, também foram consideradas elevadas. As forrageiras apresentaram alta digestibilidade total da proteína (acima de 88%), exceto os folíolos de guandu (69%). O guandu foi a forrageira com menor potencial de degradação da proteína.


1987 ◽  
Vol 109 (3) ◽  
pp. 445-452 ◽  
Author(s):  
M. J. Nicholson

SummaryThe effects of night enclosure and walking 3000 km on growing and breeding cattle were examined over an 8-month period. Walking consisted of an 8 h walk of 40 km every 3rd day and experimental cattle were enclosed each night for 11 h. In addition, all cattle were allowed water once every 3 days. In cattle which both walked and were enclosed, a reduction of nearly 40% in grazing time was recorded. This was associated with a depression of dry-matter intake of only 12%, suggesting an intensification of eating in response to a restriction of grazing time. The overall effects of walking and enclosing on productivity, as determined by adult weight loss, calf and weaner growth, calving percentage and birth weight, were negligible and masked by the greater effects of poor nutrition during the dry season which affected all the animals. It is concluded that the additional energetic requirements for walking are small and this is attributed to adaptation, fitness and a possible depression of metabolic rate. These factors may explain why the observed costs of walking were lower than those reported in the literature.


2017 ◽  
Vol 155 (5) ◽  
pp. 832-838 ◽  
Author(s):  
R. C. WATERMAN ◽  
W. L. KELLY ◽  
C. K. LARSON ◽  
M. K. PETERSEN

SUMMARYCobalt (Co) is essential for rumen microbial metabolism to synthesize methane, acetate and methionine. It also serves as a structural component of vitamin B12(cobalamin), which functions as a coenzyme in energy metabolism. A study was conducted to determine if Co form (carbonatev. glucoheptonate) supplemented above the National Research Council requirements would improve digestibility of a low-quality forage diet and change serum cobalamin concentrations. Nineteen ruminally cannulated cows (577 ± 13 kg) were fed individually in a completely randomized experimental design. Cows were fed a grass hay diet that contained (79·2 g/kg crude protein, 565 g/kg total digestible nutrients, 633·2 g/kg neutral detergent fibre (NDF), 874·2 g/kg dry matter) at a rate of 0·02% of body weight on a as fed basis for a 62-day study, which consisted of three periods; acclimation (AC), treatment (TR) and residual (RE). Measurements taken in the AC period were used as covariates for analysis in the TR and RE periods. Cows were stratified by age (5 ± 0·4 years) and lactational history, and assigned to receive 12·5 mg supplemental Co in one of two forms: (1) 27·2 mg of Co carbonate (CC,n= 11 cows) or (2) 50 mg of Co glucoheptonate (CGH,n= 8 cows). Supplement was administered daily via a gelatin capsule placed directly into the rumen 2 h after feeding. During the last 96 h of each period, forage digestibility was measured using anin situnylon bag technique. Blood samples were collected 4 and 6 h following feeding, and 24 h before the end of each period. A treatment × period interaction was detected forin situorganic matter (OM) disappearance at 96 h; (TR period: 684 and 708 ± 81 g/kg; RE period: 676 and 668 ± 75 g/kg, for CC and CGH, respectively). Once inclusion of Co in the CGH group was removed, OM disappearance was reduced by 4·01% compared with 0·82% in the CC cows. The NDF disappearance (OM basis) was less for the TR compared with the RE at 48 h (629 and 652 ± 39 g/kg, respectively). However, by 96 h NDF disappearance was greater for TR than the RE (704 and 689 ± 44 g/kg; respectively). No differences were detected for cobalamin serum concentrations or rate of fibre fermentation. The outcomes of the current research signify that there may be a slight residual effect of Co supplementation on fermentation; there was also an indication that Co source may enhance the overall extent of fermentation.


2000 ◽  
Vol 29 (3) ◽  
pp. 871-879 ◽  
Author(s):  
Cristina Mattos Veloso ◽  
Norberto Mário Rodriguez ◽  
Ivan Barbosa Machado Sampaio ◽  
Lúcio Carlos Gonçalves ◽  
Gerson Barreto Mourão

Este experimento foi realizado com o objetivo de avaliar o pH e a concentração de nitrogênio amoniacal (N-NH3) do líquido ruminal coletado 3, 6 e 12 horas após a alimentação de quatro novilhos mestiços Europeu-Zebu, providos de cânulas ruminais permanentes, assim como a relação folhas:hastes e as degradações ruminais in situ da fibra em detergente neutro (FDN) e da fibra em detergente ácido dos folíolos de três leguminosas tropicais: leucena (Leucaena leucocephala (Lam.) de Wit), guandu (Cajanus cajan (L.) Millsp.) e soja perene (Neonotonia wightii) e das folhas de outras duas forrageiras tropicais: rami (Boehmeria nivea (L.) Gaudich) e mandioca (Manihot esculenta Crantz). Amostras de 3 g de guandu, soja e rami ou 5 g de leucena e mandioca foram incubadas no rúmen dos animais por períodos de 3, 6, 12, 18, 24 e 48 horas. O delineamento experimental utilizado foi o de parcelas subdivididas, em que as parcelas eram representadas pelas forrageiras e as subparcelas, pelos seis horários de incubação do material no rúmen, sendo os quatro animais considerados blocos. Os valores de pH e N-NH3 no rúmen provavelmente permitiram adequada fermentação microbiana. As relações folhas:hastes das forrageiras variaram entre si e em relação à literatura. As degradabilidades efetivas (DE) da FDN das forrageiras avaliadas foram em torno de 50%, sendo menores para os folíolos de guandu (19,25%), que também demonstraram as menores taxa de degradação (2,5%/h) e degradabilidade potencial (57,76%). Os valores de DE da FDN foram negativamente correlacionados aos conteúdos de nitrogênio insolúvel em detergente ácido das forragens (r = -0,986). O guandu foi a pior forrageira quanto ao aproveitamento dos componentes estruturais.


2020 ◽  
Vol 45 (2) ◽  
pp. 256-264
Author(s):  
T. F. Mbahi ◽  
S. Maidadi ◽  
Z. A. Gworgwor ◽  
Y. Danladi

An experiment was conducted to evaluate the effect of growth, biomas yieds and nutritive value of Lablab purpureus, Centrosema pubescens and Mucuna pruriens under rain fed condition in Yola, Adamawa State, Nigeria. The field experiment was laid in a randomized complete block design with the plot divided into three main plots and replicated three times measuring 5x5m with inter and intra row spacings of 0.5m. The five harvesting stages are 6, 8, 10, 12 and 14 weeks, respectively. The growth in height increases with stage of growth and declined with reduction in rainfall. Higher growth were recorded in T3 (3.8 -354.8cm) followed by T2 (2.96-260.20cm) and then T1 (1.50-213.00cm) and the results were presented graphically. The result of the chemical composition of all the legumes showed that the crude protein decreases with stage of growth from weeks 6 -14 (14.40, 12.26, 10.65-10.08, 6.79, 6.49) and ADF and NDF (25.20, 32.15, 27.35-42.13, 40.33, 36.50 and 32.20, 54.45, 47.00- 51.24, 63.53, 66.33), respectively. The biomass yields were significantly different (P<0.05) for all the legumes at different harvesting stages T1 (2744.53-3186.93), T2 (2696.47- 3006.70) and T3 (2843.73-3147.63). It is therefore concluded that legumes could best be harvested between weeks 10 and 12 when the yield and quality are at levels to sustain the animals both for maintenance and production.


2021 ◽  
Vol 32 (1) ◽  
pp. 88-93 ◽  
Author(s):  
O. A. Fasae ◽  
J. A. Alokan ◽  
G. E. Onibi

Four Yankasa sheep, weighing between 19 and 24kg live weight and with age range between 15-24 months were used in a metabolism study to determine the intake and the digestibility of Leucaena leucocephala leaf residue (LLLR) while diets B, C and D had 15, 30 and 45% LLLR inclusion respectively. Dry matter and dietary crude protein intake by trhe environmental animals decreased with increasing level of LLLR inclusion in the diets, although these values were not significant (P>0.05). Also, digestion rates for dry matter and nutrients decreased as protein level of the diets decreased but variation were not significant (P<0.05). Inclusion of 15% LLLR in the dust produced the best weight gain, though this was significantly (P>0.05) different from other treatments. None of the animals developed any health problem and none was underfed as they all recorded an increase in weight. The diet with 15% LLLR produced performance similar to the control both in nutrient intake and weight gain


2019 ◽  
Vol 97 (Supplement_3) ◽  
pp. 431-432
Author(s):  
Cibelle B Figueiredo ◽  
Mauricia B Silva ◽  
Juliano Fernandes ◽  
Alana M Calaça ◽  
Higor Rocha ◽  
...  

Abstract The aim of this trial was to evaluate the effect of encapsulated calcium ammonium nitrate as a partial substitute for soybean meals in the concentrate dry matter intake, average daily gain and feed efficiency of Nellore young bulls under grazing conditions, during the dry season. Sixty-four weaned Nellore (initial BW = 177.46±3.77 kg and 9 mo old) were used in a completely randomized assay. The study lasted 84 days on the dry season. Animals were allotted into 16 paddocks of 1.0 ha each of Urochloa brizantha, randomly assigned into one of two treatments: (CTL) supplement with 25% CP, without nitrate inclusion and; (ENP): supplement with 25% CP, with a inclusion of 50 g of encapsulated calcium ammonium nitrate to each 100 kg of body weight. Animals were fed with concentrate at 1.0% of body weight. Concentrate offered was monitored daily as well as his refusals were collected and weighed to determine daily concentrate dry matter intake (DMI) and feed efficiency (F:G). Animals were weighed every 28 d for calculating average daily gain (ADG). Data were analyzed as a completely randomized design, using ANOVA (α = 0.05). No effects of treatments (P &gt; 0.3487) were observed for final BW (246.69 kg). The same for concentrate dry matter intake (P &gt; 0.0550). Animals consumed 2.34 kg of supplement per day. The average daily gain (0.832 kg, P &gt; 0.2649) and feed efficiency (0.356 kg, P &gt; 0.7315) were not affected by the inclusion of nitrate. The inclusion of encapsulated calcium ammonium nitrate in supplement to Nellore young bulls under grazing conditions during the growing phase did not affect the performance.


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