NDLI: Rumen function in vivo and in vitro in sheep fed Leucaena leucocephala

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Rumen function in vivo and in vitro in sheep fed Leucaena leucocephala

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Rumen function in vivo and in vitro in sheep fed Leucaena leucocephala

Content Provider	World Health Organization (WHO)-Global Index Medicus
Author	Barros-Rodríguez, Marcos Antonio Solorio-Sánchez, Francisco Javier Sandoval-Castro, Carlos Alfredo Klieve, Athol Rojas-Herrera, Rafael Antonio Briceño-Poot, Eduardo Gaspar Ku-Vera, Juan Carlos
Description	Author Affiliation: Barros-Rodríguez MA ( Facultad de Medicina Veterinaria y Zootecnia, Universidad Autónoma de Yucatán, Carretera Mérida-Xmatkuil km 15.5. Apdo. 4-116 Itzimná, 97100, Mérida, Yucatán, México, ma_barrosr@yahoo.es.)
Abstract	The effect of Leucaena leucocephala inclusion in sheep diets upon rumen function was evaluated. Nine Pelibuey sheep, 32.6 ± 5.33 kg live weight (LW), fitted with rumen cannula were used. A complete randomized block design was employed. Two experimental periods of 60 days each, with 60-day intervals between them, were used. Experimental treatments were as follows (n = 6): T1 (control), 100 % Pennisetum purpureum grass; T2, 20 % L. leucocephala + 80 % P. purpureum; T3, 40 % L. leucocephala + 60 % P. purpureum. In situ rumen neutral detergent fiber (aNDF) and crude protein (CP) degradation, dry matter intake (DMI), volatile fatty acids (VFA) production, estimated methane $(CH_{4})$ yield, rumen pH, ammonia nitrogen $(N-NH_{3}),$ and protozoa counts were measured. The aNDF in situ rumen degradation of P. purpureum and leucaena was higher (P < 0.05) in T2 and T3. Leucaena CP degradation was higher in T2 and T3 but for P. purpureum it was only significantly higher in T3. Leucaena aNDF and CP degradation rate (c) was 50 % higher (P < 0.05) in T2 and T3, but only higher in T3 for P. purpureum. Voluntary intake and rumen $(N-NH_{3})$ was higher in T2 and T3 (P = 0.0001, P = 0.005, respectively). Molar VFA proportions were similar for all treatments (P > 0.05). Protozoa counts and in vitro gas production (48 h) were lower in T2 and T3 (P < 0.05, P < 0.0001). Estimated methane yield (mol $CH_{4}/day)$ was higher in sheep fed leucaena (P < 0.0001). However, $CH_{4}$ yield relative to animal performance (mol $CH_{4}/g$ LW gain) was lower in T2 and T3 (P < 0.0001). In summary, these results indicate that including L. leucocephala in sheep diets did not modify rumen fermentation pattern (same VFA ratios) nor reduce the amount of $CH_{4}$ per unit of DMI (mol $CH_{4}/g$ DMI). However, leucaena inclusion does increase rumen $N-NH_{3},$ aNDF and CP digestibility, and voluntary intake.
File Format	HTM / HTML
ISSN	00494747
Issue Number	4
Volume Number	47
e-ISSN	15737438
Journal	Tropical Animal Health and Production
Language	English
Publisher	Springer
Publisher Date	2015-04-01
Publisher Place	United States
Access Restriction	One Nation One Subscription (ONOS)
Subject Keyword	Discipline Veterinary Medicine Discipline Tropical Medicine Animal Feed Animal Nutritional Physiological Phenomena Fabaceae Rumen Metabolism Animal Husbandry Animals Diet Veterinary In Vitro Techniques Male Sheep Journal Article Randomized Controlled Trial Research Support, Non-u.s. Gov't
Content Type	Text
Resource Type	Article
Subject	Animal Science and Zoology Food Animals

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Productive performance and urinary excretion of mimosine metabolites by hair sheep grazing in a silvopastoral system with high densities of Leucaena leucocephala.

Partial replacement of dried Leucaena leucocephala (Lam.) de Wit leaves for noug (Guizotia abyssinica) (L.f.) Cass. seed cake in the diet of highland sheep fed on wheat straw.

Rumen function in vivo and in vitro in sheep fed Leucaena leucocephala

Evaluation of bovine rumen contents as a feed for lambs.

The value of Leucaena leucocephala bark in leucaena-grass hay diets for Thai goats.

Effect of water hyacinth (Eichhornia crassipes) hay inclusion in the diets of sheep.

Cassava peel as a replacement for corn in the diet of lactating cows.

Effect of forage inclusion and particle size in diets of neonatal lambs on performance and rumen development.

Effects of supplementing rice straw with Leucaena (Leucaena leucocephala) and Madras thorn (Pithecellobium dulce) foliages on digestibility, microbial N supply and nitrogen balance of growing goats.

Rumen function in vivo and in vitro in sheep fed Leucaena leucocephala

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Rumen function in vivo and in vitro in sheep fed Leucaena leucocephala