In this experiment was conducted for study on effects of different levels of cassava leaves silage as feed on growth performance in growing fattening pigs at farm of Faculty of Agriculture, NUOL. With the aims of determine technical cassava leaves silage making and growth performance of pigs when they were replaced with different levels cassava leaves silage. The hypothesis to be test is that: the biological growth performance will be responded to levels of Cassava leaf silage feed. Fifteen castrated crossbred pigs from Nongtang Pig Breeding Center with average body weight of 10 ± 2 kg were allocated to three treatments (herein, completed feed as control, then it was replaced by cassava leaves silage levels 60% and 80% respectively). During the experiment, feeds offer and refusal, body live weight, and feed intake will be collected. After 105 days, data basis will be analyzed following Completely Randomized Design with 5 replications by using GenStat program. The chemical compositions of silage in different times were not significant (P>0.05), dry matter feed intake was higher tendency in control and decreased when CLS were offered to the growing pig, but they were not also significant (P>0.05) here in crude protein (CP) intake of CLS60  (26.86 DMkg/h) was highest tendency (P>0.05) and then decreased in control (25.23 DMkg/h) and CLS80 (23.38 DMkg/h) respectively. Growth performance of pigs fed basal diet and combining  of basal diet with cassava leaves silage was not different (P>0.05). However, weight gain and average dairy gain were higher tendency in control (55.92 kg and 532.62g/h/d), CLS60 (48.15 kg and 458.57g/h/d) and CLS80 (40.27 kg and 383.57g/h/d) respectively. Due to feed intake was not significant (P>0.05) affecting on FCR in fresh matter of control was lowest (2.64) comparing to 4.09 and 4.72 in CLS 60 and CLS 80 (P<0.01) respectively. Therefore, when the pigs were fed byproduct as cassava leaf, farmer should consider to hidrocyanic (HCN) and crude fiber (CF) on early weaning pigs causing of their digestive physiology are not perfected. 

Fulltext