Insect Growth Regulators and In Vitro Volatile Fatty Acid Production
نویسندگان
چکیده
منابع مشابه
In vitro lactic acid inhibition and alterations in volatile fatty acid production by antimicrobial feed additives.
Batch culture fermentations were used to determine the effects of avoparcin, lasalocid, monensin, narasin, salinomycin, thiopeptin, tylosin, virginiamycin, monensin + tylosin combination, and two new ionophore compounds (RO22-6924/004 and RO21-6447/009) on lactic acid and volatile fatty acid (VFA) production. Ruminal fluid from cattle fed a high alfalfa hay diet was incubated with glucose for 1...
متن کاملMonensin and dichloroacetamide influences on methane and volatile Fatty Acid production by rumen bacteria in vitro.
The effect of monensin (0 or 33 mug/g of diet) upon rumen fermentation in the presence and absence of methanogenesis was determined in vitro by using mixed rumen organisms continuously cultured for 17 days. Methane was inhibited by dichloroacetamide (DCA; 32 mg/day) or by a pH of 5.1. Monensin effected a significant decrease in the ratio of acetic to propionic acid in the presence or absence of...
متن کاملPhysiological Responses and In-Vitro Volatile Fatty Acid Production in Cattle
Dairy cattle that are raised under extensive conditions and fed on tropical grasses suffer during the lean period, when the production of grass is reduced and a drastic change in the chemical composition of the diet occurs. The sharp increase in energy content and the decrease in the levels of crude fiber increase the digestibility, leading to higher productivity and growth (Gonzalez et al., 20...
متن کاملInoculant effects on alfalfa silage: in vitro gas and volatile fatty acid production.
Alfalfa silages from 2 similar trials were analyzed for in vitro ruminal gas production. In both trials, there were 15 treatments: alfalfa treated at ensiling with 1 of 14 lactic acid bacterial inoculants or untreated alfalfa. First-cut (477 g of dry matter/kg) and second-cut (393 g of dry matter/kg) alfalfa were ensiled in glass jars for a minimum of 35 d at room temperature (approximately 22 ...
متن کاملVolatile Fatty Acid Production in the Rumen of Sheep
It is not known whether the concentrations of volatile fatty acids (VFA) in the rumen are simply related to their rates of production. A technique which uses a continuous intraruminal infusion of carbon-14 labelled organic acid [14C] has been developed and permits the measurement of the rate of production of a single acid (acetic, propionic or butyric acid) at one time (Leng and Leonard 1965). ...
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ژورنال
عنوان ژورنال: Journal of Dairy Science
سال: 1976
ISSN: 0022-0302
DOI: 10.3168/jds.s0022-0302(76)84203-8