A solar power-assisted system was developed and installed to create optimum, healthy environmental conditions inside the animal house. An improved animal house of 48 m2 including a manger and urine collection system was selected. The developed system consists of two…
The objective of this study was to investigate the effect of seasonal thermal stress on serum hormones, oxidative status, and immune response of periparturient dairy cows. A total of 32 healthy Holstein dairy cows in the perinatal period with the…
The objective of the current study was to evaluate the effects of dietary supplementation with chromium yeast (Cr-yeast) and dihydropyridine (DHP) on nutrient utilization, milk composition, and antioxidative status of prepartum dairy cows under heat stress. Twenty-four perinatal dairy cows…
The objective of this study was to evaluate the effect of dietary onion (Allium cepa) and ginger (Zingiber officinale) supplementation on growth, carcass quality, antioxidant status, and immune response in broilers under heat stress. A total of 700 day-old Hubbard…
Heat stress is a major challenge for dairy cows in summer. Sprinklers at feed bunks are commonly used to cool cows. These sprinklers use groundwater, which is becoming limited. There is a need to explore a more efficient use of…
This study was conducted to investigate the effect of heat stress on the physiology of dairy cows and to detect the relationship between rectal temperature (RT) and respiration rate (RR), heart rate (HR), and plasma concentrations of cortisol, thyroxine, and…
Heat stress is one of the main environmental factors that hamper the efficiency of poultry production. Heat stress is known to be less harmful to yellow-feathered chickens (YFC) than to commercial broilers, especially in its effect on the relative weight…
The dietary supplementation of trace minerals and probiotics has long been practiced to reduce the harmful effects of high environmental temperature in poultry. The study aimed to assess the effect of single or combined supplementation of ZnSO4•H2O and probiotic (Protexin®)…
In this study, the authors evaluated the comparative effects of dietary supplementation of ginger (Zingiber officinale), vitamin E and L-carnitine on certain blood parameters of two strains of broilers in summer. A total of 320 broiler chicks (Hubbard and Cobb)…
Thirty-six castrated male pigs were used to determine the influence of thermal environment and reduction of consumption on performance and carcass composition. Animals were housed in two climate chambers. In one, animals were in thermal comfort (TN) (22 °C), and…
Heat stress proteins are important factors in protecting cells against environmental stress. The HSP70.1 gene is one of the most important members of the heat stress protein family, which is essential for life, production and reproduction. In this study, partial…
The aim of this study was to investigate the effect of thermal conditioning of broiler chickens during embryonic development on subsequent performance under standard rearing conditions. During incubation eggs from 32-, 45- and 56-week old Ross 308 broiler parent stock…
A total of 497 Merino ewes were allocated to one of four experimental groups for the period 1996 to 1998. The treatments were designed to provide data on the effect of shade during an autumn lambing season and the effect…
The effect of a shade structure on the behaviour of lactating Friesian cows in open camps (dry lots) was determined over two consecutive summer periods. The daily activities of cows were observed and recorded on 9 separate 24-h periods. Shade…
The effect of a shade structure on some physiological parameters of lactating Dutch-type Friesian cows was determined over three consecutive summer periods. Plasma cortisol concentration of no-shade cows was significantly (P < 0.05) higher than that of shade cows during…
The effect of a shade structure on the feed intake, water intake, milk production and milk composition of Dutch-type Friesian cows in a temperate climate was determined over three summer seasons. The shade structure reduced (P < 0.01) radiation as…
