Two experiments were conducted to evaluate the possible interaction of nursery space allocations and grow-finish space allocations in swine. In Exp. 1, crowding was achieved by varying the number of pigs per pen. During the nursery phase, decreasing the space allocation (0.16 m2/pig vs 0.25 m2/pig; 8 and 12 pens per treatment, respectively) by increasing the number of pigs per pen (18 vs 12) re...

Two series of trials were conducted to evaluate alternative methods of administering monensin to pasture cattle. In a series of five trials, monensin was incorporated into supplements at 440 mg/kg to provide an average intake of 200 mg X head-1 X d-1 for growing cattle on pasture. Comparisons were made between daily and alternate-day feeding of the supplements. A control treatment consisting of...

the effect of different levels of dried purslane powder (dpp) in broiler diets on performance, immune response and some of blood factors was studied with 160 one day old chicken ross 308 in a completely randomized design with four treatments (diets included with levels zero (control), 2.5, 5 and 7.5 percent dpp), four replicates and 10 chicks in each replication. at 22-42 and 1-42 days differen...

effects of partial docking on feedlot performance and body fat characteristics were studied in a fat-tailed sheep breed. thirty-eight male lambs with an average weight of 4.44 ± 0.48 were randomly divided into two groups. the lambs in one group were partially docked at 3-4 h after birth, using rubber rings, and the lambs in another group remained intact (control). after weaning, 20 male lambs f...

this study was conducted in two separate experiments. four rumen-cannulated sheep were allocated in the first experiment to evaluate date by-product (dbp) and date seed (ds) nutrients degradation in rumen. in experiment two eighteen fattening lambs were allocated in three different treatments (6 animals/treatment) to evaluate dbp effects on animal performance and nutrients’ digestibility. three...

Seven experiments were conducted with 280 crossbred pigs to investigate the effect of excess choline on rate and efficiency of gain of weanling, growing and finishing swine Choline additions were made to a conventional corn-soybean meal diet. Daily gain of weanling pigs was reduced slightly by 6,000 ppm excess choline compared with 0, 500, 1,000, 2,000 or 4,000 ppm excess choline. Excess supple...

In sheep, susceptibility to scrapie is associated with the prion protein (PrP) gene polymorphism. In this study the association between selected growth traits (daily weight gain from birth to weaning and in farm fattening performance test, as well as body weight at one and two years) and PrP genotypes ARR/ARR, ARR/XXX and XXX/XXX (XXX representing AHQ, ARQ, ARH or VRQ) has been investigated in ...

Objective To determine the influence of daily use of spectacles to correct a refractive error, on the vestibulo-ocular reflex (VOR) gain measured with the video head impulse test (vHIT). Study design This prospective study enrolled subjects between 18 and 80 years old with and without a refractive error. Subjects were classified into three groups: (1) contact lenses, (2) spectacles, and (3) c...

To investigate the association between percentage of total daily energy intake consumed at breakfast and weight change in middle-aged men and women, the authors analyzed data from a prospective population-based cohort study from Norfolk, United Kingdom. Participants were 6,764 men and women aged 40-75 years at baseline (1993-1997). Participants completed a 7-day food diary at baseline, and obje...