Duodenal infusions of methionine and ly-sine have been shown to increase milk protein yield in dairy cows given a dehydrated maize diet (Rulquin, 1987). As du-odenal amino acids (AA) profiles vary according to diet (Le Henaff, unpublished), a trial was undertaken to test the lactational responses of dairy cows to methionine and lysine infusions with 3 other diets based on either maize silage (M...

The abundant growth of molds and thermophilic actinomycetes in stored hay decreases its quality and can be hazardous for the producer who inhales these contaminants when the moldy hay is fed in closed barns. These microbes are responsible for a respiratory disease called farmer's lung. Products, including bacterial cultures that can be inoculated in hay, are available to prevent hay deteriorati...

Timothy is grown as a high value forage crop in California. Thrips (Anaphothrips obscurus Müller) have recently been implicated causing damage by increasing the quantity of brown leaves and lowering the value of this crop. Minimal studies have explored the relation of thrips levels to yield and damage in timothy and management options for this pest are extremely limited. We performed studies in...

1. Sixteen first-calf Friesian heifers were used in a continous treatment design experiment. For 2 weeks after calving they were given a 750 g concentrate, 250 g hay/kg ration with 169 g crude protein (nitrogen X 6.25; CP)/kg dry matter (DM). They were then divided into two groups of eight and given a high-protein (223 g CP/kg DM) or low-protein (107 g CP/kg DM) ration at the rate of 10.8 kg co...

Although allergic diseases such as asthma and hay fever are a major cause of morbidity in industrialized countries, most studies have focused on patterns of prevalence among children and adolescents, with relatively few studies on variations in prevalence by race/ethnicity and socioeconomic position among adults. Our study examined racial/ethnic and socioeconomic patterns in the prevalence of a...

Many horse owners find round bales convenient, less labor intensive, and more affordable than other hay types, but report an inability to control horse BW gain and excessive hay waste. The objectives were to compare hay waste, hay intake, and payback of 9 round-bale feeders and a no-feeder control when used during horse feeding. Nine round-bale feeders were tested: Cinch Net, Cone, Covered Crad...

in order to investigate the effects of foliar application with plant growth promoters on morphological characteristics of maize (single-cross 704), an experiment with three replications and sixteen treatments conducted with priming and spraying of growth promoters (organser, mas-raiz, dulzee and control)  as factorial based on complete randomized block design. analysis of variance showed that t...

Context Leucaena leucocephala (leucaena) is a leguminous shrub adapted to higher rainfall (>600 mm) in frost-free areas of Australia. It can be source high-quality forage for cattle grazing tropical grass-based pastures that are seasonally deficient the nitrogen content required adequate levels performance. contains bioactive compounds may reduce methanogenesis rumen, helping achieve Austral...