A few previous studies have shown that heat processing may increase the bioavailability of phytate-P in some foodstuffs. Therefore, two chick experiments were conducted to determine the effect of various increased heat processing treatments on bioavailability of P in DDGS. In addition, two precision-fed cecectomized rooster assays were conducted to evaluate the effects of the heat treatments on...

Despite the practice of spiking flocks with younger males, reproductive problems increasingly impact the capability of flock managers to produce needed chicks and increase the cost of chick production. The problem also impacts breeders and producers using artificial insemination (AI). Recognizing that the problem is partially caused by poor semen quality, flock managers might consider evaluatio...

Meat and fish serve as important protein sources in the companion animal diet; however, limited protein digestibility data are available for assessing protein digestibility differences among good-quality protein sources. Beef loin, pork loin, chicken breast, pollock fillet, and salmon fillet were evaluated for composition, protein digestibility, and AA bioavailability using the immobilized dige...

The usual method of obtaining large quantities of plasma from fowl is to bleed the animals from the carotid artery under ether anesthesia. When it is considered that these animals have small heads but huge lower extremities, the advantages of using the ischiadic artery' become apparent at once. To obtain an accurate comparison of the sizes of the vessels, segments of the carotids and of the isc...

background : china has become an aging society, and the mental health problem of the elderly is increasingly becom-ing prominent. this paper aimed to analyze the effect of air pollution and rural-urban difference on mental health of the elderly in china. methods : using the data from the china health and retirement longitudinal survey (charls, 2013), after control-ling the social demography var...