A total of 256 one-day-old chicks were allocated into a completely randomized design with 4 treatments and 4replicates to evaluate growth, feed conversion ratio (FCR), and nutrient digestibility (ND) of Noi chickens. The treatments consisted of control diets (Lys0) containing 1.0 and 0.9% lysine for birds 1 to 28 and 29 to 56 daysof age respectively; 3 other treatments (Lys1; Lys2; Lys3) had 0.1, 0.2, 0.3% of lysine added to diets respectively. Dietary crude protein (CP) was calculated to 19% and 17% for 1 to 28 and 29 to 56 days old, but dietary ME was2.900 kcal/kg of feed for the entire duration of the study. On the last seven days of each period, one male and one female per replicate were selected to be assessed for apparent ND by ferric oxide (Fe2O3) marker. Birds were fed, provided fresh water ad libitum, and vaccinated to prevent some common diseases. Results showed that lysine supplemented 0.2 to 0.3% and 0.3% in diets for the birds between 1 to 28 and 29 to 56 days old significantly improved the growth and FCR of the chickens (P<0.05). Also, an additional 0.1-0.3% of lysine in the Noi chickens’ diets dramatically increased CP and average amino acid apparent digestibility (P<0.05),but did not effect the calcium and phosphorus digestibility of the Noi broilers.

This research was conducted to evaluate the financial efficiency of some crop production models for adaptation in salinity zones in Thanh Phu District, Ben Tre Province. This research is imperative to offer effective sustainable production solutions that are suitable to the current situation of the salinity zone. The total number of samples surveyed at the households were 136 using the convenient sampling method. The multivariate regression model has been applied to determine the factors affecting financial performance. The analysis shows that there is a linear relationship between profitability and the dependent variables of the farmerswho are farming the Shrimp - Rice; Coconut; Mango models in Thanh Phu District with at least one of the factors being an independent variable included in the model; and the independent variables selected in the model are quite high R2 = 0,648; R2 = 0,745; R2 = 0,474 respectively. Variance inflation factor (VIF) was within the limit (VIF <10). Factors such as the number of laborers involved in the farm production, with technical sciencetraining, farming experience and seed origin  knowledge were identified as having a majorimpact on the various farms income.

A feeding experiment was carried  out in a randomly completed design with threetreatments to be three supplementary levels of probiotics (0%; 1%; 3%), and three replicates of ten birds for each in order to evaluate effects of added probiotics on efficiencies of feed use and slaughter characteristics. Birds were  vaccinated against Newcastle, bird flu, Gumboro, and chicken pox. Feed and water were supplied in adlibitum in all treatments. One male and one female for each experimental unit were slaughtered at the finishing trial. Results showed that supplementing 3% probiotics caused birds to increase their bodyweight gain differently compared to the control treatment at 4.33 and 3.77 g/bird/day in 0-4 week-age period; 6.14 and 5.18 g/bird/-day in 5-8 week-age period. In addition, when 3% probiotics was added, resulted in decreasing birds’ FCR significantly from 2.577 to 2.016; influencing on carcass ratio, thigh, and breast weight; however, it did not affect feed intake, birds’ FCR of 0-4 week-age period, breast and thigh ratio, spleen, heart, and liver weight.