FORAGE QUALITY ASSESSMENTS OF RED CLOVER (TRIFOLIUM PRATENSE L.) THROUGH NEAR INFRARED SPECTROSCOPY

D. DUNEA, GH. MOTCĂ

Abstract


This paper provides measurements of the chemical composition of the red clover (Trifolium pratense L.) and hybrid ryegrass (Lolium hybridum Hausskn) forage through NIRS measurements in different development stages of the first crop production cycle during the first year of growth in Târgovişte Plain. The overall aim of this work was to perform a detailed analysis of red clover, as a component of a grass-clover mixture. Red clover soled crop (three diploids and three tetraploid cultivars), and hybrid ryegrass intercropping 50-50% were used in order to define the stability and sustainability boundaries of a reliable intensive system. Experimental trials were performed in Târgovişte Plain (Dobra), Romania (2004- 2006). Hays were harvested at pre-bloom – F1, at early bloom – F2, and mid-bloom F3 of red clover. Relative feed value (RFV) decreased with the development stages both in clover and hybrid ryegrass. In Târgovişte plain, red clover has accumulated 280.6 kg crude protein/ha in pre bloom and 697.7 kg/ha in mid bloom. The mineral elements content showed 1.41-1.93% calcium, 1.2-2.2% potassium and 0.29-1.41% phosphorous according to the phenological stages.


Keywords


red clover hays; Near Infrared Reflectance Spectroscopy; feed value; chemical composition

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LUCRARI STIINTIFICE ZOOTEHNIE SI BIOTEHNOLOGII (SCIENTIFIC PAPERS ANIMAL SCIENCE AND BIOTECHNOLOGIES)

ISSN print 1841 - 9364
ISSN online 2344 - 4576
ISSN-L  1841 - 9364
(former ISSN 1221-5287, E-ISSN 1841-9364)

PUBLISHER: AGROPRINT Timisoara, Romania
PAPER ACCESS: Full text articles available for free
FREQUENCY: Semiannual
PUBLICATION LANGUAGE: English
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Banat´s University of Agricultural Sciences and Veterinary Medicine "King Michael I of Romania" from Timisoara
Faculty of Animal Science and Biotechnologies
300645, Timişoara, Calea Aradului 119, Romania

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