The effect of raw material (cow and chicken manure) and reactor type for improving and maximizing biogas production.

Biomass energy is a type of renewable energy and animal waste is one of the main resources for its production. The purpose of this study is to investigate the effect of raw material type (cow and chicken manure) and the type of reactor (digester) on the biogas produced by measuring the amount of methane in the product. Three types of digester (metal, simple PVC, and PVC with leachate rotation) with the same volume (10 L) were prepared.

Determining Optimal Nonlinear Regression Models for Studying the Kinetics of Fatty Acid Ruminal Biohydrogenation In Vitro.

The accurate estimation of in vitro ruminal biohydrogenation (BH) kinetics of fatty acids (FA) allows for a more accurate understanding of their dynamics and develop targeted strategies to enhance desirable FA bypass. This study comprises a comprehensive evaluation of 33 nonlinear regression models to determine the most suitable model for accurately estimating the in vitro BH kinetics of individual FA. The data set utilized in the present research originates from a recent investigation on the effects of micronization and vitamin E on the in vitro ruminal BH of rapeseed.

Effect of micronization and meal size of corn grain on glycemic response and in vitro hindgut acidosis potential in horses.

This study aimed to 1) evaluate the interaction of corn grain micronization and starch levels per meal on equine plasma glucose, and 2) determine if micronization affects the risk of hindgut acidosis. Six mature (aged 6 to 10 years), healthy, non-pregnant mares (initial body weight [BW]: 301 to 463 kg) were used in a 2×3 factorial cross-over design. The treatments included two forms of corn grain (ground and micronized flaked) at three levels of starch (1, 1.

WITHDRAWN:The Effect of Intermittent Watering on Performance, Blood Metabolites, and Nutrient Digestibility in Baluchi Lambs.

Objective: This study was conducted to evaluate the effect of intermittent watering on Baluchi lambs, regarding their performance, blood metabolites, and nutrient digestibility.

Methods: Twenty male Baluchi lambs, 120 ± 5 days of age and 29 ±2.2 kg body weight were randomly assigned to four watering treatments: (T1) free access to water during the day, (T2) watered ad libitum twice a day, (T3) watered ad libitum once a day, (T4) watered ad libitum once every two days.

Influence of barley grain treated with alkaline compounds or organic extracts on site and extent of digestion of starch.

Objective: Two e experiments were conducted to verify the effect of barley grain () treated with alkaline compounds (AC) including alum, ammonium, and sodium hydroxide or cation-exchanged organic extracts (OE) prepared from alfalfa hay, sugar beet pulp and , on extent and digestion of starch.

Methods: In the first study, the first order disappearance kinetic parameters of dry matter (DM), crude protein (CP) and starch were estimated using a non-linear model (D = D · e + I, where: D = potentially digestible residues at any time, D = potentially digestible fraction at any time, k = fractional rate constant of digestion (/h), I = indigestible fraction at any time). In the second experiment, the ruminal and post-ruminal disappearance of DM, CP, and starch were determined using mobile nylon bag.