The study of Nutritive Value and Phenolic Compounds of Prosopis Cineraria and Prosopis Juliflora in different growth stages

Moslemi Nia, M. (2010) The study of Nutritive Value and Phenolic Compounds of Prosopis Cineraria and Prosopis Juliflora in different growth stages. Masters thesis, University of Zabol.

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The objective of this study was to determine chemical compositions, phenolic compounds and nutritive value of Prosopis cineraria and Prosopis julifora in different growth stages. For this purpose, fresh leaves and twigs collected in phonological stages of vegetative growth, flowering and seed ripping from three regions of Jiroft County at early April until end October. After collecting samples, they are dried in shade and milled base on standard method. Chemical compositions (dry matter (DM), organic matter( OM), ASH, crude protein ( CP), cell wall (NDF) and cell wall without hemicellulose ( ADF) and phenolic compounds (total phenolic (TPH)), total tannin (TT) and condensed tannins ( CT)) were determined . For dry matter degradability trial, two rumen fistulae bulls were used. Nylon bags, which were approximately (10×17cm) containing 5 g samples (2 mm screen), were incubated in the rumen of fistulae bulls with and without polyethylene glycol (PEG) for 0, 3, 6, 12, 24, 48, 72 and 96 h. The gas production was recorded after 2, 4, 6, 8, 12, 24, 48, 72 and 96 h of incubation with and without PEG and the equation of P=B(1-e CT) was used to describe the kinetics of gas production. The data was analyzed using factorial design with SAS software. Results showed that CP content was higher in P. cineraria than P. julifora and decreased with growing of trees. However, NDF content in both species increased with progress of growth. Phenolic compounds of P. cineraria were higher than P. juliflora. DM disappearances were significantly different among treatments. Adding of PEG has improved DM disappearance in P. cineraria. Gas production volume was high in treatments with PEG. There was positive correlation with CP and negative correlation with NDF and ADF. Adding of PEG caused that nutritive value is improved. Therefore, phenolic compound can decrease nutritive value in Prosopis species. Overall, Prosopis leaves can be suitable for feeding at small ruminant and it is better that they become detained, before feeding of leaves and twigs, with ash or PEG.

Item Type: Thesis (Masters)
Uncontrolled Keywords: Prosopis cineraria, Prosopis juliflora, Nutritive value, In vitro, In situ
Subjects: S Agriculture > SF Animal culture
Depositing User: Mrs najmeh khajeh
Date Deposited: 11 Apr 2016 04:32
Last Modified: 09 Oct 2022 07:00

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