Agronomic characteristics and nutritive value of pigeon pea [Cajanus cajan (L.) Millsp.] harvested at different stages of maturity.

1969 ◽  
Vol 95 (3-4) ◽  
pp. 193-210
Author(s):  
Víctor M. Figueroa ◽  
Abner A. Rodríguez ◽  
Paul F. Randel
Keyword(s):  
Chemical Composition ◽  
Cajanus Cajan ◽  
Small Ruminants ◽  
Pigeon Pea ◽  
Neutral Detergent Fiber ◽  
Agronomic Characteristics ◽  
Whole Plant ◽  
Plant Maturity ◽  
Voluntary Intake ◽  
Tropical Grass

This study was divided into three parts. The first evaluated the effects of five stages of plant maturity (60, 75, 90,120 and 180 d) on the agronomic characteristics, chemical composition and in vitro degradability (IVDMD) of pigeon pea [Cajanus cajan (L.) Millsp.] 'Kaki' and its anatomical fractions, leaves and stems. In the second part, the selective consumption of this legume was studied. In the third part, the effects of the inclusion of pigeon pea in diets based on tropical grass hay for goats on voluntary intake, and digestibility of dry matter (DM), crude protein (CP) and neutral detergent fiber (NDF) were determined. Plant height increased and leaf :stem ratio decreased, as the plants grew. In the whole plant, DM and NDF content increased (P < 0.05) by 13.9 and 19.2 percentage units, but CP content numerically decreased by 4.8 units as plant maturity progressed from 60 to 120 d. At the five successive stages evaluated, CP content in the leaves exceeded that of the stems, whereas NDF content showed the opposite trend. The IVDMD values were 69.6% in the whole plant, 73.9% in the leaves, and 50.4% in the stems. Whole plant IVDMD decreased (P < 0.05), with advancing plant maturity, from 71.2% at 60 d to 55.8% at 180 d. In the selective consumption trial, intake of fresh pigeon pea was compared with that of fresh native tropical grass (NTG) or NTG hay. A high selection of pigeon pea was observed for the first 10 minutes, but during the following 20 minutes this selection decreased. In the voluntary intake and digestibility trial that utilized six goats (26.4 kg live weight) to evaluate the inclusion of 25% of pigeon pea in a NTG-based diet, CP intake was markedly higher (P < 0.05) with legume supplementation. Dietary inclusion of the legume also tended to improve the digestibility of DM and CP but not at the P < 0.05 level of significance (56.7% vs. 51.4% and 58.7 vs. 51.2%); however, it did not affect NDF digestibility. As the pigeon pea plant increased in height, changes occurred in leafistem proportions and chemical composition. The IVDMD results suggest that the interval from 75 to 120 d of growth is favorable for possible utilization of pigeon pea as fresh forage in diets for small ruminants.

scholarly journals Effects of the Harvest Stage of Maize Hybrids on the Chemical Composition of Plant Fractions: An Analysis of the Different Types of Silage

Agriculture ◽  
2021 ◽  
Vol 11 (8) ◽  
pp. 786
Author(s):  
Egon Henrique Horst ◽  
Valter Harry Bumbieris Junior ◽  
Mikael Neumann ◽  
Secundino López
Keyword(s):  
Chemical Composition ◽  
Lignin Content ◽  
Neutral Detergent Fiber ◽  
Maturity Stage ◽  
Important Distinction ◽  
Maize Hybrids ◽  
Acid Detergent Lignin ◽  
Whole Plant ◽  
Grain Formation ◽  
Early Harvest

The chemical composition of plant components of three maize hybrids harvested at the beginning of six reproductive stages of maturity was compared. The hybrids evaluated included Maximus VIP3, Defender VIP and Feroz VIP, which were evaluated at each of following stages: R1 (grain formation), R2 (milky grain), R3 (pasty grain), R4 (floury grain), R5 (hard grain) and R6 (ripe grain). The advancement in maturation was linearly related to the crude protein (CP) content of the stem, whole plant, and leaves, and there was a difference among the hybrids. Between R4 and R5 stages, Maximus and Defender presented the highest CP contents for husk (6.58 and 5.42% for Maximus; 5.54 and 5.17% for Defender). The neutral detergent fiber (NDF) of the leaves showed a quadratic relationship with the advancement of maturation but did not differ among the hybrids. For all the hybrids, the NDF content in the husk and cobs increased linearly during the reproductive stages (>77 and 78%, respectively, for the three hybrids in R6). Defender had the lowest NDF content of the cob in R3. The acid detergent lignin contents did not differ among stages in the stems, and showed a linear decrease throughout the whole plant, though the contents did not differ among the hybrids. Due to the differences observed, recommendations for harvest based on the maturity stage for each hybrid should be taken into consideration. There seems to be no important distinction among hybrids for harvesting and use of straw. Despite the reduction in grain yield, an early harvest for earlage or snaplage can provide lower lignin content in husk and cob, as well as higher protein content in the husk, favoring the nutritional value of the vegetative fraction (husk and/or cob).

scholarly journals PROPRIEDADES QUÍMICAS E CÔMPUTO QUÍMICO DOS AMINOÁCIDOS DA FARINHA E CONCENTRADO PROTÉICO DE FEIJÃO GUANDU (Cajanus cajan (L.) Millsp)

2000 ◽  
Vol 18 (2) ◽  
Author(s):  
IVONE YURIKA MIZUBUTI ◽  
LUIZ WALDEMAR DE OLIVEIRA SOUZA ◽  
OSWALDO BIONDO JÚNIOR ◽  
ELZA IOUKO IDA
Keyword(s):  
Amino Acids ◽  
Chemical Composition ◽  
Cajanus Cajan ◽  
Soluble Sugars ◽  
Extraction Procedure ◽  
Chemical Properties ◽  
Pigeon Pea ◽  
Protein Concentrate ◽  
Chemical Score ◽  
Sulphur Amino Acids

Esta pesquisa teve por objetivo investigar as propriedades químicas e cômputo químico dos aminoácidos da farinha e de concentrado protéico de feijão guandu (Cajanus cajan (L.) Millsp). A farinha apresentou composição química adequada em relação a outras leguminosas. O procedimento de extração aquosa de proteína, a partir de grãos de feijão guandu com 25,73% de proteína, permitiu a obtenção de concentrado protéico com 52,47% de proteína, em base seca, compreendendo concentração da ordem de 103,85%. O concentrado protéico de feijão guandu apresentou composição química adequada, sendo que cinzas e açúcares solúveis foram concentrados 122,17 e 21,86%, respectivamente, em relação ao grão. Os níveis de aminoácidos no concentrado protéico foram similares aos de farinha de guandu, porém, a metionina foi concentrada em 42,64%. O cômputo químico indicou que os aminoácidos limitantes primários na farinha e concentrado protéico foram os sulfurados totais. A composição química da farinha e do concentrado protéico de guandu indicou potencialidade para utilização de ambos como componentes de alimentos para seres humanos e animais. Abstract The aim of this work was the investigation of the chemical properties of Pigeon pea (Cajanus cajan) (L.) Millsp) flour and protein concentrate. The flour presented suitable chemical composition in comparison to other legumes. The water extraction procedure of protein, from Pigeon pea grains with 25,73% of protein allowed to obtain a protein concentrate with 52,47% of protein in dry basis, resulting an increase in order of 103,85%. The protein concentrate of Pigeon pea showed suitable chemical composition, having an increase of 122,17% in ashes and 21,86 % in soluble sugars in relation to the crude grain. The amino acids levels in the concentrate were similar to those in the flour, however there were an increase of 42,64% in methionine concentration. The chemical score suggest that the primary limiting amino acids in the flour and in the concentrate were the total sulphur amino acids. The chemical composition of the flour and concentrate of Pigeon pea showed perspectives of its utilization as feed components for humans and animals.

Antifungal activity of some new fiavones and fiavone glycosides of Echinops echinatus

1988 ◽  
Vol 66 (9) ◽  
pp. 1901-1903 ◽  
Author(s):  
U. P. Singh ◽  
V. B. Pandey ◽  
K. N. Singh ◽  
R. D. N. Singh
Keyword(s):  
Phenolic Compounds ◽  
Antifungal Activity ◽  
Cajanus Cajan ◽  
Control Measure ◽  
Pigeon Pea ◽  
High Efficacy ◽  
Alternaria Tenuissima ◽  
Whole Plant ◽  
Blight Disease ◽  
First Time

Four phenolic compounds, viz., apigenin, apigenin-7-O-glucoside, echinacin, and echinaticin, were isolated from the whole plant of Echinops echinatus Roxb.; the latter two compounds were isolated for the first time. The two derivatives echinacin permethyl ether and apigenin-5,4′-dimethyl ether were obtained by methylation of echinacin and apigenin-7-O-glucoside permethylate, respectively. All the compounds were assayed against germination of conidia of Alternaria tenuissima (Kunz. ex Pers.) Wiltshire, which incites leaf blight disease in pigeon pea (Cajanus cajan (L.) Millsp.). All showed high efficacy against the pathogen at concentrations ranging from 25 to 150 μg mL−1. Echinacin, which was highly effective at 150 μg mL−1, is considered the most promising of these compounds and its use as a control measure against Alternaria blight of pigeon pea under field conditions has been suggested.

scholarly journals CHEMICAL COMPOSITION, IN VITRO DEGRADABILITY, AND INTAKE AND DIGESTIBILITY BY GOATS OF PIGEON PEA (CAJANUS CAJAN CV. GUERRERO) AND GUINEA-GRASS HAY MIXTURES

1969 ◽  
Vol 94 (3-4) ◽  
pp. 269-273
Author(s):  
Abner A. Rodríguez ◽  
Denise Carmona ◽  
Laura González ◽  
Paul F. Randel ◽  
Elide Valencia
Keyword(s):  
Chemical Composition ◽  
Cajanus Cajan ◽  
Pigeon Pea ◽  
Grass Hay ◽  
Guinea Grass

CHEMICAL COMPOSITION, IN VITRO DEGRADABILITY, AND INTAKE AND DIGESTIBILITY BY GOATS OF PIGEON PEA (CAJANUS CAJAN CV. GUERRERO) AND GUINEA-GRASS HAY MIXTURES

scholarly journals Comparison of Chemical Composition and Rumen Degradation Kinetics of Three Forages: Whole Plant Barley, Whole Plant Foxtail Millet and Grass-Legume Hay

2016 ◽  
Vol 8 (6) ◽  
pp. 1
Author(s):  
H. A. Lardner ◽  
R. Kumar ◽  
E. Darambazar ◽  
D. Damiran ◽  
J. J. McKinnon
Keyword(s):  
Chemical Composition ◽  
Crude Protein ◽  
Nutritive Value ◽  
Soluble Fraction ◽  
Degradation Kinetics ◽  
Foxtail Millet ◽  
Neutral Detergent Fiber ◽  
Rumen Degradation ◽  
Whole Plant

<p>The objective of this study was to determine the chemical composition and <em>in situ</em> rumen degradability of whole plant barley (<em>Hordeum vulgare</em>), whole plant foxtail millet (<em>Setaria italica</em>) and smooth bromegrass (<em>Bromus inermis</em> <em>Leyss</em>)-alfalfa (<em>Medicago sativa </em>L.) (grass-legume) hay, collected during a companion field grazing study. Relative to grass-legume hay, barley and millet were higher (P = 0.05) in crude protein (CP) and soluble CP, and lower (P = 0.02) in neutral detergent fiber (NDF), acid detergent fiber (ADF), lignin, neutral detergent insoluble CP, and acid detergent insoluble crude protein. The potentially undegradable fraction of CP averaged 32% lower for barley and millet, compared to grass-legume hay, while CP soluble fraction was 36 and 64% higher (P &lt; 0.05) for barley and millet, respectively, than for grass-legume hay. Millet had the highest NDF degradability (P = 0.03) and grass-legume hay the least. Barley and millet had greater (P = 0.02) effective degradability of dry matter (DM), CP, and NDF than grass-legume hay. Millet had the highest (P = 0.01) degradable and lowest undegradable fractions of DM and NDF, and lowest soluble fraction of NDF and rate of CP degradation (P &lt; 0.05). Results indicate that whole plant barley and millet have greater nutritive value than grass-legume hay and may be suitable annual forages for extensive grazing.</p>

Evaluation of tropical legumes: Chemical composition, in vitro degradability, and ingestive selectivity by bovines and caprines.

1969 ◽  
Vol 94 (1-2) ◽  
pp. 121-130
Author(s):  
Abner A. Rodríguez ◽  
María Vázquez ◽  
Jorge Olivares ◽  
Francisco Rivera ◽  
Luis Cruz ◽  
...  
Keyword(s):  
Organic Matter ◽  
Chemical Composition ◽  
Crude Protein ◽  
Dry Matter ◽  
Lignin Content ◽  
Neutral Detergent Fiber ◽  
Arachis Glabrata ◽  
Tropical Legumes ◽  
Voluntary Intake

An experiment, divided into three trials, was conducted to determine the chemical composition, in vitro degradability, and ingestive selectivity of the tropical legumes (TL) Stylosanthes guianensis (Stylo; SG), Cajanus cajan (pigeon-pea; CC) and Arachis glabrata (rhizome perennial peanut; AG). In the first trial the organic matter (OM), inorganic matter (IM), crude protein (CP), neutral detergent fiber (NDF), acid detergent fiber (ADF, hemicelulose), cellulose, lignin and acid detergent insoluble nitrogen (ADIN) content in the whole plant and botanical components (stems and leaves) of the three TL were determined. The second trial evaluated the in vitro apparent (AIVDMD) and true dry matter degradability (TIVDMD) of the three TL during 48 h of incubation in bovine and caprine ruminal fluid. Trial three, of cafeteria type, evaluated the voluntary intake by goats and heifers of the three TL during one hour. In all trials tropical grass hay (HG) was used as control forage. A qualitative scale (none, low, medium and high) was used to express the intake of TL and GH. Organic matter content was lower (P < 0.05) but IM was higher (P < 0.05) in AG than in CC, SG, and GH. In all three TL, the CP content was higher (P < 0.05) than inTG, but NDF was lower (P < 0.05). AmongTL species, CP content was higher (P < 0.05) in AG than in SG and CC, but NDF content was similar. ADF content was also lower (P < 0.05) in AG than in CC and in SG, but hemicelulose percentage was higher (P < 0.05). Lignin was lower (P < 0.05) in GH than in the three legumes, and CC showed the highest (P < 0.05) ADIN content among the forages evaluated. For all three TL, CP in leaves was higher than 20%. Leaf NDF content was lower (P < 0.05) in CC than in AG and in SG, whereas ADF was higher (P < 0.05) in SG than in AG and CC. Leaves of AG also had higher (P < 0.05) hemicelulose but lower (P < 0.05) cellulose values than CC and SG. Lignin content was similar in leaves of the three TL, but ADIN content was higher (P < 0.05) in CC. Crude protein content of stems was lower (P < 0.05) in CC than in AG and SG.The NDF content and its fractions (ADF, cellulose and hemicelulose) were lower (P < 0.05) in AG stems than in those of SG and CC.The highest (P < 0.05) lignin content and lowest (P < 0.05) ADIN content were observed in CC and SG stems, respectively. In the second trial, use of either ruminal inoculum type gave AIVDMD and TIVDMD values that were, in descending order, highest (P < 0.05) in AG than in SG, GH and CC. In trial three a greater intake was observed in goats and heifers offered AG and GH than when offered SG and CC. Based on nutrient content, in vitro dry matter degradability, and voluntary intake, AG showed greater potential as a forage source than SG and CC. However, all three TL showed promise as potential alternatives for use as an integral part of ruminant feeding systems in the tropics.

scholarly journals Pigeon pea (Cajanus cajan) fodder cutting management in the Guinea Savanna Agro-Ecological Zone of Ghana

2021 ◽  
Author(s):  
E. A. Tenakwa ◽  
A. Z. Imoro ◽  
T. Ansah ◽  
F. Kizito
Keyword(s):  
Chemical Composition ◽  
Cajanus Cajan ◽  
Biomass Yield ◽  
Pigeon Pea ◽  
In Vitro Digestibility ◽  
Ecological Zone ◽  
Guinea Savanna ◽  
Affected Plant ◽  
Cutting Regimes

AbstractThis study evaluated the effect of cutting regime on biomass yield and nutrient composition of pigeon pea (Cajanus cajan (L) Millsp.) fodder in the Guinea Savanna Agro-Ecological Zone of Ghana. Three cutting regimes (12, 16 and 20 Week After Planting [WAP]) in RCBD were imposed on Cajanus cajan at both initial establishment and regrowth. At each harvest, biomass yield was estimated after which samples of the fodder were separated into leaf and stem botanical fractions for chemical composition and in vitro digestibility. Cutting regime significantly affected plant height, number of branches and stem diameter in both the initial establishment and regrowth. Biomass yield was significantly affected by cutting regime in the initial establishment but not the regrowth. The biomass yield was highest in the harvest at 20WAP (6515kgDM/ha) while 12WAP (3175 kg/ha) recorded the lowest biomass yield in the initial establishment. All chemical composition parameters were significantly affected by cutting regime and botanical fractions except hemicellulose in the initial establishment. Cutting regime also significantly affected DM, CP and ash concentrations in the regrowth with botanical fraction significantly (P < 0.05) influencing CP, NDF, ADF and ash. The highest CP was obtained in the leaf fraction harvested at 12 WAP and 20 WAP in the initial establishment and regrowth respectively. Cutting regime, botanical fraction and their interaction were significant in gas produced at 24 h, SCFA and ME in both the initial establishment and regrowth stages. In conclusion, harvest at 20WAP produced the highest biomass yield but lower CP in the initial establishment whiles in the regrowth, harvest at 20WAP produced higher biomass yield, CP and ME.

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