|
MEKARN Conference 2010 |
Cashew tree (Anacardium occidentale L.) was grown popular in the tropical countries. One of their by products is cashew nut oil meal (COM) used as fertilizer. The aim of this study is to evaluate the nutritive value of COM pigs. There are two parts:
1) Evaluation the chemical compositions of COM (%): 86.7% dry matter, 29.7 – 31.0% crude protein; 12.7 - 16.4% Ether extract; 2.5 - 2.82% crude fiber and 4.40 - 4.61% ash. The total EAAs content is 28.7 % as feed in which the content of Thr; Met +Cys; Lys , Try are 1.05; 1,08; 1.29; 0.38% respectively.
2) Three feeding trials were performed to evaluate the effect of using COM in the diets for pigs
- Experiment 1: Effect on inclusion COM in the diets of Growing-Finishing pig: A Feeding trial was carried out on 36 cross-breed of growing pig selected from 8 families, the average of initial weight was around 22.5 kg. They were divided into four treatments in which COM was replaced to soybean meal at ratio of 0; 1/3; 2/3 and 3/3 of protein content from SBM. It was equivalent to 0; 12; 24 and 36 % of COM in the diets. Pigs were randomly allocated with sex and family among treatments. The result showed that there were the increasing DWG and reduced FCR with increasing replacing level of COM. There were no significant differences in carcass quality. The effects of COM on quality and iodine index of fat were 65.2; 65.7; 68.0; and 72.6 P<0.01 for the treatments, respectively.
- Experiment 2: Effect of inclusion COM in the diet of weaned piglet
240 weaned piglets at 38 days old. The initial weight was around 9.5 kg/pig; they were randomly allocated into 4 treatments with were randomly allocated with sex and family among treatments. equal weight, sex. The replacement of COM protein to that of SBM was similar to previous experiment. It was equivalent to inclusion levels of 0; 5.6; 11.0 and 16.8 % in the diets. Result showed that COM can replace to soybean meal protein in the diet of weaned piglet. And the inclusion level can be up to 11% in the diet.
- Experiment 3: Effect of inclusion COM in the diets of lactating sows
44 sows of Yorkshire and Landrace at 15 days before farrowing were divided into 4 treatments in which the protein of COM was replaced to that of SBM at the ratio similar to previous experiment. It was equivalent to 0; 11.65; 23.3 and 35% of COM in the sow diets. Sow were from litter 1 to 6th and raised in individual cages until weaning piglets
The results showed that COM can be used to replace up to 67% of protein of SOM (equal 23.3% COM in sow diet). Its can stimulate the sow palability, increased feed intake, milk production and reduced the weight loss during the lactation period. For that reason, using COM can increase the number of weaned piglet, and their weight gain.
Due to cheaper price compare to SBM, include COM to the diets for pigs can reduce the cost production of all experiments