Effect of long-term heat stress on some performance traits and plasma enzyme activities in Naked-neck chickens and their F1 crosses with commercial layer breeds

Effects of dietary supplementation of selenium‐enriched probiotics on production performance and intestinal microbiota of weanling piglets raised under high ambient temperature

“…As is known, thyroid hormones play important roles in animal growth performance and animal adaptation to environmental challenges, as T3 and T4 can increase the basal metabolic rate, enhance glucose utilization, modify lipid metabolism and stimulate protein synthesis (Todini et al., ). Previous studies found that the levels of the two thyroid hormones were decreased, and the function of thyroid was inhibited due to high environmental temperature or hyperthermia in summer (Baccari et al., ; Tuckova et al., ; Mustafa et al., ; Melesse et al., ). This present study showed that the serum T3 level was increased while T4 level was decreased in the SeP or ISe group than in the Con or Pro group of pigs on days 28 and 42 post‐treatment.…”

Significance of scavenging chicken production in the rural community of Africa for enhanced food security

“…Considerable work has been done on the crossbreeding of local breeds with exotics in some African countries such as Ethiopia (Melesse et al, 2005;2011b;2011c). On the other hand, crossbreeding offers a chance to exploit heterosis and the development of synthetic lines.…”

Effects of Dietary Nano-Selenium Supplementation on Growth Performance, Antioxidative Status, and Immunity in Broiler Chickens under Thermoneutral and High Ambient Temperature Conditions

“…Modern broiler breeds are more susceptible to heat stress than earlier genotypes. High ambient temperature reduces feed intake, live weight gain, feed efficiency, and immune response of chicken broilers (Siegel, 1995;Melesse et al, 2011). Moreover, hyperthermia may promote reactive oxygen species (ROS) formation (Mujahid et al, 2005).…”