A trial was conducted to evaluate the effect of reduced CP, amino acid-supplemented diets on performance of castrated males swines on high environmental temperature (32ºC). A total of sixty crossbred piglets (Landrace x Large White) averaging initial weight of 15.2 kg was allotted to completely randomized experimental design with five treatments (18, 17, 16, 15, and 14% of CP), six replications and two animals per experimental unit. The experimental diets were fed to swine ad libitum until the end of […]

This study was carried out to evaluate the effect of environmental temperature on performance, carcass composition and physiological parameters of pigs from 30 to 60 kg of weight. Thirty six barrow (Landrace x Large White) with initial weight of 29.94 ± 0.49 kg, were assigned to a completely randomized experimental design with three treatments six replicates and two animals per experimental unity. The experimental period lasted 35 days. The treatments consisted of T1 Animals on heat stress (32ºC) fed ad […]

The experiment was carried out with the objective of determining the apparent and true ileal digestibilities of amino acids from five different poultry by-product. Ten crossbreed swines, castrated males, averaging 31.11 ± 3.88 kg were used in the experiment. The animals were previously submitted to the surgery for simple T canula implantation and, then, allotted to a randomized block design with five treatments, four replicates and one animal per experimental unit. At the end of the first and second replicates, […]

Sixty swine (Landrace x Large White) with initial weight of 14.97 ± 0.33 kg and 50.36 ± 3.29 days old were allotted to a blocks randomized experimental design, with five treatments (0.465, 0.511, 0.558, 0.605, and 0.652% digestible methionine + and cystine)and six replicates of two animals, to determine the sulphurous amino acids requirements for barrows on a high temperature environment from 15 to 30 kg. Diets and water were fed ad libitum until the end of the experimental period, […]

Forty-eight (24 barrows and 24 females) Landrace x Large White pigs (averaging 22.69 kg of initial body weight) were assigned to four treatments to evaluate the effect of feeding sunflower cake (SC) on performance and carcass characteristics for swine in the growing and finishing phases. The following increasing dietary levels of sunflower cake (SC) were used: (0, 5, 10 and 15%). Daily weight gain (DWG), daily feed intake (DFI) and feed:gain ratio (FGR)in the growing I (20 to 50 kg […]

This trial was conducted to evaluate the effect of antimicrobial supplementation (association of 50 ppm of colistin, 50 ppm of zinc bacitracin and 50 ppm of olaquindox) or herbal extract (based on thyme, clove and oregano at levels of 0, 700, 1,400 and 2,100 ppm) on Bacteria population of duodenum, jejunum, ileum and cecum of swine at 56 days old. Denaturing gradient technique in polyacrylamide gel electrophoresis (DGGE) of amplicons from 16S rDNA V3 region was used. The number of […]

Two experiments were carried out to evaluate the inclusion of exogenous enzymes in diets with different protein levels and sources for pigs during the nursery period. In the first experiment, 80 pigs from 21 to 51 days of age, weaned at 14 days of age, were assigned to a randomized blocks experimental design, in a 2x2x2 factorial (two protein levels; with or without meat and bone meal; with or without enzyme), with five replicates and two pigs/box, and fed a […]

An study was conducted to evaluate the influence of reduction of crude protein (CP) levels and amino acid supplementation in diets on the performance of castrated swines (Landracex Large White) maintained in a termoneutral environment. Fifty crossbreed piglets (average initial body weight of 30.2 kg) were allotted to a completely randomized experimental design with five treatments (17, 16, 15, 14 and 13% CP) and five replications and two animals per experimental unit. Experimental diets and water were fed ad libitum […]

The use of defatted corn germ meal (DCGM) for swine feeds was evaluated by two experiments. The first experiment was represented by a digestibility test with two treatments and four replicates, where eight pigs were allocated in metabolic cages during 12 days and submitted a total feces and urine collect. The second experiment aimed to evaluate the performance on growing I (20 to 50 Kg live weight), growing II (50 to 80 kg live weight) and finishing (80 to 100 […]

An experiment was carried out to evaluate the effects of nebulization and artificial ventilation on the performance and skin temperature of finishing swine. Castrated males and females (n = 137; Landrace x Large White x Duroc) were allotted to two treatments by using a radomized bolck design, with eight replicates: T1 = pens without either nebulization or artificial ventilation; T2 = pens with both nebulization and artificial ventilation. There was an average of eight animals per each pen. During the […]