1. The experimental barley samples included 4 hulled and one hull-less low-phytate barley cultivars and two commercial barley varieties as controls. 2. The diets were provided in meal form, with the experimental barley samples constituting the cereal source. Two additional treatments were added for each of the control varieties in which intermediate and recommended levels of phosphorus were pro...

The apparatus to be described was designed to investigate certain phenomena of pregnancy by enabling (a) the measurement of the total ingesta and excreta of a mouse, including the exchange of water and gases, for periods of approximately 24 hr. under conditions as normal as possible, and (b) the repetition of such daily measurements for long periods (up to the duration of pregnancy) with a mini...

Abstrac t -1 . Three fluorescing materials have been discovered in excreta from the American cockroach, Periplaneta americana (L.), and found to increase in concentration as dietary nitrogen increases. 2. These compounds have been identified as kynurenic, xanthurenic and 8-hydroxyquinaldic acids. 3. Feeding cockroaches antibiotic eliminates 8-hydroxyquinaldic acid production, presumably by inhi...

Abstract Better understanding of N2O emissions from interactions between urine or feces, with different levels nitrogen (N) fertilization on tropical pastures would be helpful in developing strategies to mitigate and improve inventories. The objective this study was evaluate feces samples collected Nellore young bulls, isolated association N fertilizer. Study designed as completely randomized b...

A simple, inexpensive, non-invasive method for urine collection was used in 28 consecutive infants for periods of 48 hours (n = 10) and 72 hours (n = 18). The incidence of urine collector detachment was low on the first and second days (< 4%) and increased significantly on the third day (28%). Volume of urine leaked was < 4% of the total volume collected daily. This method is applicable to both...

Introduction Conducting real-world research, in particular for the novice researcher, is not easy (Casey 2004). Choices have to be made concerning each stage of the process, all of which are governed by the research question and/or aims of the study. In making these choices researchers resort to textbooks as well as research studies. Both sources are helpful, however, the latter may sometimes b...