Ninety-six barrows from 63 to 103 days of age were used to evaluate the effects of dietary digestible lysine levels on performance and carcass traits of two genetic lines selected for lean deposition. Pigs with initial body weight of 23.800 ± 1.075 kg were allotted in a completely randomized block design, within a 4 × 2 factorial arrangement (four digestible lysine levels: 0.80, 0.90, 1.00, 1.10%, and two genetic lines), with six replicates and two pigs per experimental unit. There […]

In order to evaluate the effects of dietary digestible lysine levels on performance and carcass traits of two genetic lines of pigs selected for meat deposition, from 60 to 100 days of age, a total of 120 crossbred barrows, with initial average body weight of 25.42 ± 2.08 kg were used. Pigs were allotted in a complete randomized block design, within a 4 × 2 factorial arrangement (four digestible lysine levels: 0.90, 1.00, 1.10, and 1.20%, and two genetic lines: […]

The objective of this work was to verify the occurrence of compensatory growth in Malaysian prawn (Macrobrachium rosenbergii) reared in pens, after being stocked in cages under high densities during nursery phase. The experiment was carried out in 0.5 m2 cages and 2-m2 pens set in natural bottom pond with 2,400 m2. Prawn post-larvae (PL) with an average weight of 0.026 ± 0.012 g (nursery phase) were initially stocked in 16 cages at the densities of 50, 400, 800 and […]

An experiment was conducted with the objective to evaluate the type of whole soybean processing to be used in the feeding of growing-finishing swine. Sixty pigs, gilts and barrows, with initial average weight of 24.96 kg and age of 70 days, were distributed to a complete randomized block design, with five treatments, each one with 12 replicates, and six per each sex. The experimental unit was composed by one animal in an individual box. Experimental diets were isonutritious and based […]

Fifty barrows (30.10 ± 0.48 kg to 60.08 ± 0.49 kg live weight were assigned to a completely randomized blocks design, with five digestible methionine plus cystine levels (0.448, 0.490, 0.531, 0.573, and 0.615%), five replicates and two animals per experimental unit, to evaluate the requirement of digestible methionine plus cystine The digestible methionine and cystine levels of the diet influenced the average daily gain that increased in a linear way. However, the linear response plateau model was what best […]

A static deterministic model was used to evaluate productivity and efficiency of growing and finishing beef steers systems in Rio Grande do Sul State differing at steers slaughter age (IA): 54, 42, 36, 30, 24 and 18 months (IA54, IA42, IA36, IA30, IA24 e IA18, respectively), or in market live weight for buying and sale (cattle growing systems from 150 to 250 kg -R1, from 250 to 350 kg -R2, or finishing cattle from 350 to 450 kg -R3). Feeding […]

Eighty piglets, half weaned at 20 days of age and half weaned at 25 daysof age, weighing 4.55 ± 0.67 and 6.62 kg ± 0.92 kg, respectively, were allotted to an experimental randomized block design in a factorial scheme, with five replicates of four animals per experimental unit, to evaluate two diets and two weaning periods and its effects in the growing and finishing phases. Different characteristics of diets were obtained with inclusion levels of ingredients: dried skin milk, sugar […]

Seventy two piglets weaned at 21 days of age with live weight of 5.01 ± 0.90 kg were allotted to a randomized block design, replicated six times with four animals per experimental unit. The treatments were constituted of diets with the following protein sources: soybean meal, macerated full fat soybean and micronized soybean. The diets were fed from weaning to 42 days (initial-1 phase) and from 43 to 56 days of age (initial-2 phase). The residual effects of the treatments […]