Yield and nutritional quality potential of three fodder grasses in the Northern region of Sri Lanka

Sarmini, M.; Premaratne, S.

doi:10.4038/tar.v28i2.8194

Cited by 11 publications

(21 citation statements)

References 6 publications

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“…The CF content of all fodder species was above 35%. The proximate composition of corn and sorghum are in agreement with other workers (Chaudhary et al, 2012;Heuze et al, 2016;Sarmini and Premaratne, 2017). The DM, CP and ash contents of palmyrah leaves found in the present study were in agreement with the report of Mohanajeyaluxmi (1986) and Perera (1992).…”

Section: Proximate Compositions Of Pre-ensiled Materialssupporting

confidence: 93%

Ensiling property and nutritional quality of palmyrah (Borassus flabellifer) leaves incorporated corn (Zea mays) or sorghum (Sorghum bicolor (L.) moench) silage

Sarmini

Premaratne

Premalal³

et al. 2017

Trop. Agric. Res.

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A laboratory experiment was designed to examine the effects of inclusion of palmyrah (Borassus flabellifer) leaves on the ensiling and nutritional quality of silage prepared with forage sorghum (Sorghum bicolor (L.) moench) or corn (Zea mays). Corn and sorghum were replaced with different proportions of palmyrah leaves (viz. 0%, 10%, 20%, 30% (w/w)) in fresh matter basis in preparing eight treatments for the experiment where silage prepared with only corn or sorghum were considered as controls (viz. 0% palmyrah leaves). Silage was packed air tightly in laboratory silos and kept for four weeks in a temperature controlled room at 30  C. Chemical composition and ensiling parameters were determined using standard procedures. Dry matter, crude fiber, pH and water soluble carbohydrate contents of the silage increased with the increase of palmyrah leaves, but ash and lactic acid contents decreased. Further, the increase of palmyrah leaves increased (p < 0.05) the crude protein content of corn silages but decreased (p < 0.05) the crude protein content of sorghum silages. The results revealed that the treatment of 10% replacement with palmyrah leaves was acceptable when the chemical composition and ensiling parameters of silage were considered. Therefore, a mixture of 10% palmyrah leaves with corn or sorghum is recommended for making quality silages.

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Section: Proximate Compositions Of Pre-ensiled Materialssupporting

confidence: 93%

Ensiling property and nutritional quality of palmyrah (Borassus flabellifer) leaves incorporated corn (Zea mays) or sorghum (Sorghum bicolor (L.) moench) silage

Sarmini

Premaratne

Premalal³

et al. 2017

Trop. Agric. Res.

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“…A field study (Samarawickrama et al, 2018)in Peradeniyaat the 42 days after planting reported a lower number of leaves ( 51) with different spacing. The leaves count per plant are very important as the leaves have a higher nutritive value than the stem (Sarmini and Premaratne, 2017).…”

Section: Growth Characteristicsmentioning

confidence: 99%

Evaluation of growth and yield performances of Napier grass cultivar pakchong-1 under different spacial patterns in the Kilinochchi district, Sri Lanka

Sathees

Santhiralingam

2022

J. Agro-Technol. Rural Sci.

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Inadequacy of quality forage production is a major limiting factor for dairy production in the Sri Lankan dry zone. Napier grass cv Pakchong-1 (Pennisetum purpureum x Pennisetum glaucum) is a tropical grass with fastgrowing and high yielding ability. The study aims to determine the growth parameters and yield performance of Pakchong-1 grass under three different spacing of 30cm x 30cm, 90cm x 90cm and 120cm x 90cm in the Kilinochchi district, dry zone of Sri Lanka, from April 2019 to March 2020. A complete randomized design with three replicates was used in this study. Growth parameters were measured bi-weekly up to the 8th week and harvested the foliage after the 8th week in 56 days intervals. Plants at 30cm x 30cm spacing have shown the highest plant height of (153.00cm), the higher number of leaves (93.67), longer leaf length (95.33cm), wider leaf width (3.82cm)and higher leaves per tiller (11.33) at 8 weeks after planting (P<0.05). While the highest (P<0.05) the number of tillers (10.00) was recorded at 120cm× 90cm spacing. Fresh matter yields were highest (P<0.05) at 30cm x 30cm spacing in all cutting frequencies. The second cutting at the 14th week has shown the highest fresh matter yield(P<0.05) in all spacing. Pakchong -1 can be suggested for the Sri Lankan dry zone regions at 30cm x 30cm spacing to provide the highest fresh matter output and optimal growth performance.

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“…Each plant has a specific phytochemical profile consisting of both primary and secondary metabolites that form the basis of host selection and discrimination by an insect (Del Campo et al ., 2001). For example, maize and rice plants contain similar nutritive values (Butterworth, 1963; Sarmini & Premaratne, 2017) but with distinct phytochemical profiles (Nawaz et al ., 2018; Wang et al ., 2018). These chemicals notify the foraging insects about the suitability of a plant as a food source (Renwick, 1994; Schoonhoven & van Loon, 1998), and therefore determine an insect's food choice and its subsequent performance (Chen et al ., 2019).…”

Section: Introductionmentioning

confidence: 99%

Role of digestive protease enzymes and related genes in host plant adaptation of a polyphagous pest, Spodoptera frugiperda

Hafeez

Zhang

et al. 2021

Insect Science

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The evolutionary success of phytophagous insects depends on their ability to efficiently exploit plants as a source of energy for survival. Herbivorous insects largely depend on the efficiency, flexibility, and diversity of their digestive physiology and sophistication of their detoxification system to use chemically diverse host plants as food sources. The fall armyworm, Spodoptera frugiperda (J.E. Smith), is a polyphagous pest of many commercially important crops. To elucidate the ability of this insect pest to adapt to host plant mechanisms, we evaluated the impact of primary (corn) and alternate (rice) host plants after 11 generations on gut digestive enzymatic activity and expression profiles of related genes. Results indicated that the total protease and class-specific trypsinand chymotrypsin-like protease activity of S. frugiperda significantly differed among host plant treatments. The class-specific protease profiles greatly differed in S. frugiperda midguts upon larval exposure to different treatments with inhibitors compared with treatments without inhibitors. Similarly, the single and cumulative effects of the enzymespecific inhibitors TLCK, TPCK, and E-64 significantly increased larval mortality and reduced larval growth/mass across different plant treatments. Furthermore, the quantitative reverse transcription polymerase chain reaction results revealed increased transcription of two trypsin (SfTry-3, SfTry-7) and one chymotrypsin gene (Sfchym-9), which indicated that they have roles in host plant adaptation. Knockdown of these genes resulted in significantly reduced mRNA expression levels of the trypsin genes. This was related to the increased mortality observed in treatments compared with the dsRED control. This result indicates possible roles of S. frugiperda gut digestive enzymes and related genes in host plant adaptation.

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Yield and nutritional quality potential of three fodder grasses in the Northern region of Sri Lanka

Abstract: ABSTRACT. Feeding standards of ruminant livestock could

Cited by 11 publications

References 6 publications

Ensiling property and nutritional quality of palmyrah (<i>Borassus flabellifer</i>) leaves incorporated corn (<i>Zea mays</i>) or sorghum (<i>Sorghum bicolor</i> (L.) moench) silage

Ensiling property and nutritional quality of palmyrah (<i>Borassus flabellifer</i>) leaves incorporated corn (<i>Zea mays</i>) or sorghum (<i>Sorghum bicolor</i> (L.) moench) silage

Evaluation of growth and yield performances of Napier grass cultivar pakchong-1 under different spacial patterns in the Kilinochchi district, Sri Lanka

Role of digestive protease enzymes and related genes in host plant adaptation of a polyphagous pest, Spodoptera frugiperda

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