The objective in this work was to determine the nutritive value of high and low tannin high-moisture sorghum grain silage in horse feeding by means of digestibility. A total of eight crossbred geldings at the age of six years and an average body weight of 330 kg were used in a complete randomized design with samples replicated on the same animals. The test-diets consisted of the ensiled high and low tannin sorghum grains replacing 30% of the dry matter of […]

This experiment was carried out to evaluate the reproductive and zootechnical performance, and lipid deposition in the liver tissue of the Nile tilapia males fed diets containing different levels of digestible energy obtained from inclusion of soybean oil. Four hundred 400 broodfish (300 females and 100 males) were assigned to a completely randomized design composed of five levels of digestible energy (2,700, 2,950, 3,200, 3,450 and 3,700 kcal digestible energy.kg of feed-1) and four replications. The breeding were fed diets […]

This experiment was conducted to evaluate the effect of including defatted corn germ meal in diets for laying hens. It was assigned two hundred and forty laying hens to a randomized design, with six diets and five replicates of eight hens per diet. Experimental diets were formulated by inclusion of defatted corn germ meal at 0, 6, 12, 18, 24 and 30% level. The period experiment was carried out for four 28-day cycles and performance (feed intake, egg production, egg […]

The aim of this study was to evaluate the inclusion of an enzimatic complex in diets for Nile tilapia (Oreochromis niloticus) on performance, carcass chemical composition as well as water quality. The experiment was performed in 62 days. It was used two hundred reverted fingerlings (14.57 ± 1.24 g) distributed in a complete randomized design in 20 500 L-tanks with four treatments and five replicates, considering a box with 10 fish as a experimental unit. The fish were fed diets […]

The objective of this study was to evaluate the effect of digestible threonine levels on performance and carcass composition of barrows of high genetic potential for meat deposition. Eighty barrows with initial weight of 95.87 ± 1.26 kg were distributed in a randomized block design, with five treatments (0.470; 0.497; 0.528; 0.557; 0.587%, corresponding to digestible threonine:digestible lysine ratio of 58.0; 61.0; 65.0; 69.0 and 73.0%, respectively) with eight replications and two animals in each experimental unit. The experimental feeds […]

Corn replacement with triticale in Nile tilapia diets was assessed. The fish were submitted to a performance test in a system of aquariums (50 L) with controlled temperature and water recirculation. Fingerlings weighing from 1.7 ± 0.08 g were stocked in 30 aquaria in a randomized complete block with five replacement levels (0.0, 25.0, 50.0, 70.0 and 100.0%) of corn with triticale and six replications. The performance parameters analyzed were: survival, weight gain, apparent feed conversion, feed intake, cost, hepato-somatic […]

The objective of this study was to the evaluate physiological, hematological and biochemical parameters of eventing horses fed diets containing soybean oil and submitted to physical effort tests. Twelve horses were used in a completely randomized design with two diets and six replications. The diets used were: diet without soybean oil inclusion (control) and diet with inclusion of 10% soybean oil. The experiment lasted 82 days, with three exercise tests: at the beginning, 60th and 82th day of the experiment. […]

The objective of this study was evaluate the influence of feeding bullfrog tadpoles on commercial feed containing 28% crude protein (CP), on their digestive enzyme performance and activities. The experiment lasted 60 days, at the density of one tadpole/L in boxes containing 30 L water. A hundred and twenty tadpoles at the 25 Gosner stage averaging weight and length was 0.046 g and 6.22 mm, respectively, were used. Survival rate, length, final weight, weight gain, feed consumption, apparent food conversion, […]

This study was carried out to determine the best digestible energy and digestible protein ratio in feeds for Nile tilapia (Oreochromis niloticus) juveniles 30.0 ± 4.21 g) based on digestible amino acids and the ideal protein concept). Twelve rations were formulated with protein levels 22.0; 26.0; 30.0 and 34.0% of digestible protein and levels 3,000, 3,300 and 3,600 kcal/kg digestible energy. The digestible energy/digestible protein ratio was between 8.94 and 15.19 kcal/g. Three hundred and twenty four tilapias were randomly […]

Supplementation of 5 ppm of ractopamine, associated or not to feed restriction in diets with a high total lysine content (1.04%) was evaluated on performance and nitrogen balance. In experiment 1, 60 hybrid castrated male swine (76.2 ± 2.3 kg) were housed in pairs according to a randomized complete block design in a factorial treatment arrangement (2 ×2 + 1) with or without ractopamine supplementation, two forms of feeding, ad libitum and feed restriction with 1.04% lysine, and an additional […]