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Articles by R. Foroughbakhch
Total Records ( 2 ) for R. Foroughbakhch
  R. Foroughbakhch , J.L. Hernandez-Pinero and A. Carrillo-Parra
  In the semiarid and subtropical regions of Northeastern Mexico, leaves, young stem, fruit and pods of shrubs and herbs are important forage complement into ruminant feeding. In order to determine the effectiveness of the use of shrubs as fodder by goats, floristic compositions, voluntary intake and nutritive value of diets were determined. It was observed in a total of 100 goats (10 goats month-1) grazing in a semiarid shrubland Northeastern Mexico during 10 months. Plant selectivity by goats was obtained using the Multi-Minute Method. Crude Protein (CP), Ether Extract (EE), ash, Crude Fiber (CF), Nitrogen Free Extract (NFE), cellulose and hemicellulose content were determined. Leaves and stem were also analyzed for lignin and condensed tannins. Data on both the consumption of plants and their chemical composition were analyzed using the ANOVA Model. Results from chemical analysis revealed significant (p<0.05) differences in nutrient values between species. Shrub species constituted 78% of the animal diet during the growing season followed by herbs (12-18%) and grasses (6-10%). Furthermore, during the fruit production stage shrub species such as Cordia boissieri, Prosopis sp. and Acacia sp. ranked the highest percentage in the diet (>80%). Among the shrubs most consumed with higher preference index were Cordia boissieri (10.4%), Pithecellobium pallens (10.2%), Acacia rigidula (9.4%), Celtis pallida (8.4%), Acacia farnesiana (8.1%) and Forestiera angustifolia (5.7%). These species offered a good nutritional level with values between 16.5 and 21.9% of crude protein, 13.8-22.9% crude fiber, 11.1-22.4% cellulose and 30.7-50.5% nitrogen free extract.
  R. Foroughbakhch , A. Carrillo-Parra , M.L. Cardenas-Avila and S. Moreno-Limon
  Pods and leaves as an energy supplement is a basic forage, rich in protein and highly digestible. The nutritional values of pods and leaves differ among trees due to highly specific proteins of different digestibility. To estimate and compare seasonally, the chemical composition and in vitro digestibility of nutrients in leaves and entire pods of Gleditsia triacanthos L. plants were harvested from a native shrubs and trees during Fall 2004, Winter, Spring and Summer 2005. The in vitro technique was used to measure the digestibility of Dry Matter (DM) and Crude Protein (CP). The crude protein content varied within range of 7.8% (Winter) to 9.4% (Summer) for leaves and from 12% (Spring) to 15% (Fall) for entire pods. The annual means of acid detergent fiber (19.5%) and neutral detergent fiber (35.8%) content in leaves was lower than the alfalfa (26%) as feed reference. However, the annual means of ADF for pods (30.6%) was higher than the (Medicago sativa). The lignin content was high both in leaves (10.4%) as well as in pods (12.1%) in comparison to the alfalfa (9%). In general, during the Spring (71.4%) and Summer (73.4%) the entire pods were higher in CP and DM digestibility and during Winter (56.3-64.2%) were low.
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