Effect of Tithonia diversifolia (Hemsl.) Gray (Giant Mexican Sunflower) on the population of rumen protozoa and methanogens under in vitro conditions

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Juana Galindo
Niurca Gonz?lez
Areadne Sosa
Tom?s E. Ruiz
Verena Torres
Ana Irma Aldana
Humberto D?az
Onidia Moreira
Luc?a Sarduy
Aida C. Noda

Abstract

The objective of this work was to evaluate the effect of Tithonia diversifolia on the population of rumen protozoa and methanogens under
in vitro conditions. The treatments were designed according to the level of T. diversifolia and were: (A) 0 (control); (B) 10 % and (C) 20 %. The rest of the diet consisted of star grass (Cynodon nlemfuensis). The experimental design was completely randomized. The samplings were performed at 0, 2, and 4 hours after the start of the fermentation. The chemical composition of the plant showed the following values: 23.95 % CP, 33.43 % NDF, and 29.54 % ADF. The phytochemical screening proved the presence of tannins and saponins. The population of protozoa was 3.75, 3.25, and 1.5 x 105 cells. mL-1 for A, B, and C, respectively. The methanogenic bacteria were reduced 1.64 and 2.7 folds with 10 and 20 % of T. diversifolia, respectively. The 10 % inclusion activated the population of cellulolytic bacteria although
the 20 % did not differ from the control. No effects were found on the population of rumen fungi. It is concluded that Tithonia diversifolia
reduces the population of rumen protozoa and methanogens under in vitro conditions.
Key words: rumen, Tithonia diversifolia, protozoa, methanogens, cellulolytic bacteria.

Article Details

How to Cite
Galindo, J., Gonz?lez, N., Sosa, A., Ruiz, T. E., Torres, V., Aldana, A. I., D?az, H., Moreira, O., Sarduy, L., & Noda, A. C. (2011). Effect of Tithonia diversifolia (Hemsl.) Gray (Giant Mexican Sunflower) on the population of rumen protozoa and methanogens under in vitro conditions. Cuban Journal of Agricultural Science, 45(1). Retrieved from https://cjascience.com/index.php/CJAS/article/view/185
Section
Animal Science
Author Biographies

Juana Galindo

Instituto de Ciencia Animal, Apartado Postal 24, San Jos? de las Lajas, Mayabeque, Cuba

Niurca Gonz?lez

Instituto de Ciencia Animal, Apartado Postal 24, San Jos? de las Lajas, Mayabeque, Cuba

Areadne Sosa

Instituto de Ciencia Animal, Apartado Postal 24, San Jos? de las Lajas, Mayabeque, Cuba

Tom?s E. Ruiz

Instituto de Ciencia Animal, Apartado Postal 24, San Jos? de las Lajas, Mayabeque, Cuba

Verena Torres

Instituto de Ciencia Animal, Apartado Postal 24, San Jos? de las Lajas, Mayabeque, Cuba

Ana Irma Aldana

Instituto de Ciencia Animal, Apartado Postal 24, San Jos? de las Lajas, Mayabeque, Cuba

Humberto D?az

Instituto de Ciencia Animal, Apartado Postal 24, San Jos? de las Lajas, Mayabeque, Cuba

Onidia Moreira

Instituto de Ciencia Animal, Apartado Postal 24, San Jos? de las Lajas, Mayabeque, Cuba

Luc?a Sarduy

Instituto de Ciencia Animal, Apartado Postal 24, San Jos? de las Lajas, Mayabeque, Cuba

Aida C. Noda

Instituto de Ciencia Animal, Apartado Postal 24, San Jos? de las Lajas, Mayabeque, Cuba

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