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Effects of saponin from Biophytum petersianum Klotzsch on ruminal fermentation, microbial protein synthesis and nitrogen utilization in goats

Santoso, B. ; Kilmaskossu, A. ; Sambodo, P.

Animal feed science and technology, 2007-09, Vol.137 (1), p.58-68 [Periódico revisado por pares]

Amsterdam: Elsevier B.V

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Título:
Effects of saponin from Biophytum petersianum Klotzsch on ruminal fermentation, microbial protein synthesis and nitrogen utilization in goats
Autor: Santoso, B. ; Kilmaskossu, A. ; Sambodo, P.
Assuntos: Ammonia–N ; animal feeding ; Animal productions ; Biological and medical sciences ; Biophytum ; Biophytum petersianum ; Elephantidae ; feed additives ; Feed and pet food industries ; feed grains ; Food industries ; Fundamental and applied biological sciences. Psychology ; goats ; Grass silage ; herbs ; liquids ; microbial activity ; natural additives ; nitrogen balance ; nutrient utilization ; plant extracts ; protein metabolism ; Protozoa ; Purine derivatives ; rumen fermentation ; rumen protozoa ; Ruminantia ; saponins ; Terrestrial animal productions ; Vertebrates
É parte de: Animal feed science and technology, 2007-09, Vol.137 (1), p.58-68
Notas: http://dx.doi.org/10.1016/j.anifeedsci.2006.10.005
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SourceType-Scholarly Journals-1
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Descrição: Four Kacang goats were used in a 4 × 4 Latin square experiment to determine effect s of saponin from Biophytum petersianum Klotzsch on ruminal fermentation characteristics ( i.e., pH, ammonia–N and volatile fatty acids (VFA)), protozoal numbers, microbial protein synthesis and N utilization in goats fed a silage-based diet. The goats were fed twice daily (08:00 and 16:00 h) with a basal diet consisting of elephant grass silage and a grain-based concentrate (70:30 on a dry matter (DM) basis). Treatments consisted of Biophytum aqueous extract administrated orally in amounts of 0 (control), 160, 239 and 319 ml twice daily, corresponding to 0, 13, 19.5 and 26 mg of saponin/kg body weight. Results show that ruminal ammonia–N concentrations decreased linearly (P<0.01) with increasing saponin and pH values, ranging from 6.91 to 7.02, increased linearly (P<0.01) with added saponin. There were linear decreases (P<0.05) of total VFA concentration and proportions of butyrate and iso-acids, as well as protozoal numbers, in response to increased saponin feeding. There were linear decreases in urinary N (P<0.01) and total N excretion (P=0.05) per unit N intake with increased saponin feeding. Retained N as a proportion of N digested and efficiency of microbial N synthesis, increased linearly (P<0.01) in response to saponin feeding. Results indicate that B. petersianum water extract can be used to modify ruminal fermentation in order to increase retained N per unit N digested and reduce total N excretion per unit N intake. This may contribute to mitigating environmental pollution from ruminants.
Editor: Amsterdam: Elsevier B.V
Idioma: Inglês

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Effects of saponin from Biophytum petersianum Klotzsch on ruminal fermentation, microbial protein synthesis and nitrogen utilization in goats

Santoso, B. ; Kilmaskossu, A. ; Sambodo, P.

Amsterdam: Elsevier B.V

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