The increase of the world population generates the need to raise the production of food of vegetal and animal origin. In Brazil, livestock farming has evolved, demonstrating the important role of the country in the production of food. In this way, researchers of this productive chain have been looking for technologies related to production and reproduction, above all, to the use of reproduction biotechnologies,...
Achatina fulica, known as Giant African Snail (GAS), was introduced in Brazil as a substitute for the European escargot, Helix aspersa maxima. However, its cultivation was abandoned and the mollusk became an invasive species, found throughout Brazil and causing damage to health and the environment. In this context, this study analyzed the knowledge of the population about the damage caused by GAS, seeking to r...
Two experiments were carried out to determine the performance of rabbits fed on diets including cassava hulls dried (CHD), fiber variety for growing rabbits. In the digestibility assay, 22 rabbits at 50 days of age were used in a randomized design with two treatments and 11 replicates. Reference and test diets were used in which CHD substituted 25% of dry matter of control diet. The digestible values of the dry...
Forty rabbit does were distributed in a completely randomized experimental design, with four treatments (oil-free ration and rations with 3% canola oil, 3% corn oil or 3% soybean oil) and 10 replications. Blood samples were collected on the 16th day of their first and second pregnancies, and on the 11th day after the first birth. Concentrations of total triglyceride, total cholesterol, high (HDL), low (LDL) and...
Semen was evaluated in forty rabbit distributed in a completely randomized design, with four treatments (oil-free ration and rations with 3% of canola oil, 3% of corn oil or 3% of soybean oil) and 10 replications. Ten semen collections were taken, twice a week, for five weeks. Parameters consisted of volume, pH, color, vigor, progressive motility, spermatozoa concentration/mm3, total spermatozoa per ejaculation...
One hundred and twenty rabbit does, were evaluated during two productive cycles. The animals were distributed in a completely randomized experimental design, with four treatments (oil-free rations and 3% canola oil, corn oil or soybean oil rations) and 30 replications. While data of live weight of rabbit does were collected in each breeding, on birth, on the 21st and the 35th days of lactation, those on feed in...
Effects of super-ovulation on 40 rabbit does were evaluated. Females were distributed in a completely randomized design, with four treatments (oil-free ration and rations with 3% canola oil, corn oil or soybean oil) and 10 replications. Each doe received a unique intramuscular dose of 40 UI of equine corionic gonadotrophin (eCG); 48 hours later they underwent breeding. After 72 hours of breeding, the does were ...
One experiment was carried out to study the amylase activity in the small intestine (jejunum and ileum) of rabbits from litters maintained on different feeding patterns. Two hundred White New Zealand rabbits were analyzed, out of which 40 35- days-old rabbits, 80 50-days-old rabbits and 80 70-days-old rabbits were slaughtered. To modulate the pattern of feed and milk intake before weaning, the litters were modu...