We investigated the variation in eating speed by individual pregnant sows and the influence of feeding dry compared to wet feed. A total of 39 Norwegian Landrace × Yorkshire dry sows, 13 primiparous and 26 multiparous, were included in the experiment. In experimental period 1, each sow was offered 2.2 kg of a standard concentrate feed without added water. In experimental period 2, the sows were...

The study was conducted to determine optimum dietary inclusion level of Glyricidia leaf protein concentrate (GLPC), for growing rabbits. Thirty five weaned rabbits of mixed sexes were weighed and randomly allocated to five dietary treatments which contained 0, 5, 10, 15 and 20% GLPC for diets 1 to 5, respectively in a completely randomized design. Diet 1 served as the control diet.Each treatmen...

Profitability of different grouping criteria was simulated in a dairy farm with 153 lactating cows that were divided into three groups of high (79), medium (40) and low (34) cows based on the milk records. Animals were reassigned to the new groups based on the following criteria using a decision support tool and the same three groups scenario: fat corrected milk 4%, days in milk (DIM), dairy me...

This study was conducted to evaluate the effects of the different levels of vermi (Eisenia fetida) meal on fermented ration in broiler chicken growth and profitability under two management systems. For this purpose, 120 day old broiler chickens (cobb vantress) were tested in a Completely Randomized Design with four (4) dietary treatments: first, the commercial feeds (control), second, 2% vermi ...

Enrichment of live foods by essential nutrients such as highly unsaturated fatty acids is an important tool for improvement of larval fish quality. In this study, nutritional effects of Artemia urmiana enriched by fish and plant oils on growth, survival rate, body compositions and resistance against thermal, salinity and hypoxic stresses in rainbow trout, Oncorhynchus mykiss were examined. Six ...

Interest in selection for improved feed efficiency is increasing, but before any steps are taken toward selecting for feed efficiency, correlations with other economically important traits must first be quantified. The objective of this study was to quantify the genetic associations between feed efficiency measured during performance testing and linear type traits, BW, live animal value, and ca...

in nutritional experiments the animals are kept in metabolic cage and are fed according to the planned interval times. a machine was designed and fabricated to feed the sheep every one or two hours. the machine operates with 220 volts electricity and the feed storing capacity is designed for three days feeding. the weight of sheep and type of feed determines the amount of feed required. by chan...

A growth-performance trial and a metabolism trial were conducted to evaluate the influence of a 20% fluctuation in daily feed intake on performance and digestive function in Holstein steers. Steers were programmed to gain 1.1 kg/d. Treatments consisted of a 92% concentrate fed at a constant or variable rate. Overall, feed intake was the same for both groups. However, the variable feeding group ...