Ruminal volatile fatty acid concentration and methane gas production in sheep (Ovis aries) fed two types of basal diets with of without Gliricidia sepium legume forage supplementation
Journal Title: Annals of Tropical Research - Year 2023, Vol 45, Issue 2
Abstract
The aim of this study was to clarify whether the type of forage diets, Napier grass (Pennisetum purpureum) vs. urea-treated rice straw, and supplementation with Gliricidia sepium affect rumen VFA production and methane emission as well as intake and digestibility in ruminants. The experiment was set up in a randomized complete block design (RCBD) composed of four treatments namely: Napier grass (T1), Napier + legume forage (T2), urea-treated rice straw (T3), and urea-treated rice straw + legume forage (T4). Each treatment was divided into four blocks (n=16) based on body weight and sex combination. The daily dry matter intake tended to increase from treatments supplemented with G. sepium (T2 and T4) compared to treatment-fed pure basal diet alone (T1 and T3). Intake relative to metabolic weight (BW 0.75) is high in T2 and T4. The molar concentration of volatile fatty acid was higher in T1, which was found comparable with T2 and T3, while T4 has the lowest. The molar proportion of acetate tended to increase in T1 and T3, while the propionate concentration was significantly high in T2 and T4 leading to lesser CH4/CO2 production respectively. These results confirmed the potential of G. sepium as a methane-mitigating supplement to basal diets such as Napier and urea-treated rice straw as feed to ruminants.
Authors and Affiliations
R-Jun Frederick A. Gaspe, Lolito C. Bestil, Taketo Obitsu
Influence of potassium fertilization on the functional components and antioxidant activity of pummelo [Citrus maxima (Burm. Ex Rumph.) Merr.] fruit
This study aimed to determine the influence of potassium (K) fertilization on the functional components and antioxidant activity of 13-year-old ‘Magallanes’ pummelo [Citrus maxima (Burm. Ex Rumph.) Merr.]. The field expe...
Amphibians and reptiles from Leyte Sab-a Basin Peatland: A unique wetland habitat in Leyte, Philippines
The Leyte Sab-a Basin Peatland (LSBP) is a unique wetland ecosystem that is an important refuge for biodiversity. However, the diversity of wildlife communities in peatland ecosystems, particularly herpetofauna (amphibia...
Surfacing development needs of a marginal upland community through participatory tools: The case of village in Samar, Philippines
Efforts to alleviate the productivity of marginal uplands necessitate the use of participatory approaches to identify development needs of the community. However, despite the popularity of participatory methods for asses...
Biology of Tortoiseshell Beetle (Aspidomorpha miliaris Fabr.) on Sweetpotato (Ipomoea batatas Lam) and Its Relatives as Affected by Hosts’ Nutritional Profile
Several insect pests attack the foliage of sweetpotato at different stages of crop growth which contribute to yield reduction. Weeds belonging to the same genera as the main host can act as alternate hosts of insect pest...
Genetic parameters of body weight in japanese quails (Coturnix japonica Temminck & Schlegel, 1849) in the Philippines
The establishment of breeding and selection programs to improve the genetic potential of poultry necessitates estimation of genetic parameters for different production and reproduction traits, Restricted maximum likeliho...