Title:

Using ensiled mixed foliage (Taro leaves-stems + banana pseudo-stems and Sweet potato vines) as replacement of rice bran for Mong Cai sows kept in small holder farms in Thua Thien Hue province of Central Vietnam (for Poster)

(Hoang Nghia Duyet HUAF, Vietnam; Email: hoangnghiaduyet@gmail.com)

Abstract

Two experiments were tested:

Experiment 1: Ensiling mixed foliage (Taro leaves-stems + banana pseudo-stems and sweet potato vines): Banana pseudo-stem, Taro foliage and sweet potato leaves were chopped into small pieces (1 to 2 cm) and wilted in sunlight to reduce the moisture to about 75-80%, after that mixing together and ensiling in rigid plastic containers of 2 litters capacity with 5 replications of treatment. A separate container were opened at 0, 3, 8, 15 and 21 days for measurement of pH, DM, CP. Results shown that:

 pH were reducing very quickly by the time ensiled (0 day 6.54; 3 days: 4.36; 8 days: 4.08; 15 days: 3.88 and 21 days: 3.72) .

DM and CP of ensiling mass were not changed (DM: 0 day: 17.37; 21 days 17.56; CP: 0 day: 22.50 and 21 day 22.71).

It mean that mix foliage (taro leaves-stems + banana pseudo-stems and sweet potato vines) could be ensiling and storing for long time.

Experiment 2: Replacing rice bran with ensiled mixture of bananas pseudo-stem + taro foliage and sweet potato vines in the diet of Mong Cai sows: 20 Mong Cai sows from parity third with live weight of about 80kg, from farms in Phu Da commune (Phu Vang district, Thua Thien Hue province) were selected  and divided into 3 treatments by randomly (5 sows/ treatment): Treatment EBTS100 (100% ensiled mixture foliage and 0% Rice bran), treatment EBTS50 (50% ensiled mixture foliage + 50% rice bran); Treatment EBTS0 (0% ensiled mixture foliage + 100% rice bran). In first 90 days of sow pregnant were feeding 1.5 kg DM/ day; 24 days of last pregnancy period were feeding 1.7 kg DM; in lactation period were feeding ad-libitum after 5 days of farrowing.

Results shown that: Litter size at birth were none significant differences between treatments: EBTS100 (11.00 ± 0.32; then treatment EBTS50 (11.40 ± 0.40; and treatment EBTS0 (11.40 ± 0.25),  (P>0.05)

For litter size at weaning (piglets/ litter), they were not significant differences between treatments: EBTS100 (10.60 ± 0.245), EBTS50 (10.80 ± 0.20), EBTS0 (11.00 ± 0.00), (P>0.05).

For birth weight: it were lowest in treatment EBTS100 (0.595 ± 0.001 kg), it is significant differences between treatment BT100 with BT50 and BT0 (P<0.05), but none significant difference between treatment EBTS50 (0.645± 0.01 kg) and EBTS0 (0.640 ± 0.002 kg), (P>0.05).

For weaning weight: It were lowest in treatment EBTS100 (6.68 ± 0.008 kg), it were significant differences between treatment EBTS100 with EBTS50 and BT0 (P<0.05), but none significant difference between treatment EBTS50 (8.08 ± 0.07 kg) and EBTS0 (7.95 ± 0.004 kg), (P>0.05).

For Feed intake during pregnancy period were lower in treatment EBTS100 (1.38±0.01 kg/ sow/ day), and higher in treatment EBTS50 (1.50±0.00 kg) and treatment EBTS0 (1.48±0.00), it were significant difference between EBTS100 with EBTS50 and EBTS0 (P<0.05), but none significant difference between EBTS50 and EBTS0 (P>0.05);

For feed intake in lactation period: it was lowest in treatment EBTS100 (1.68±0.05 kg/ sow/ day), then in treatment EBTS50 (2.53±0.02 kg/ sow/ day) and highest in treatment EBTS0 (3.01±0.05 kg/ sow/ day). It were significant difference between treatment EBTS100 with treatment EBTS50 (P<0.05), and also significant difference between treatment EBTS50 with treatment EBTS0 (P<0.05).

For live weight lost (%) of the sows during lactation period, it was highest in treatment EBTS100 (24.78±1.21%), then treatment EBTS50 (15.51±0.67%) and lowest in treatment EBTS0 (11.74±0.92%). It were significant differences treatment EBTS100 with treatment EBTS50 (P<0.05) and between treatment EBTS50 with treatment EBTS0 (P<0.05).

For time re-mating of the sows after weaning piglets: It was highest in treatment EBTS100 (18.06±0.93 days), lower in treatment EBTS50 (7.00±0.32 days) and treatment EBTS0 (7.20±0.2 days), it were significant differences between treatment EBTS100 with two other treatments (P<0.05), but none significant difference between treatment EBTS50 with treatment EBTS0 (P>0.05).

For FCR (kg feed/ kg LW of piglets): It was higher in treatment EBTS100 (3.75±0.09 kg), then treatment EBTS0 (3.60±0.03 kg) and lower in treatment EBTS50 (3.48±0.07). It were significant differences between treatment EBTS100 with two other treatments (P<0.05), and none significant differences between treatment EBTS50 and treatment EBTS0 (P>0.05).

Conclusion: We can replacement 50% of rice bran in feed stuff by mixture of ensiled taro foliage + banana pseudo-stems and sweet potato vines, but did not made to reduce reproductive performance of Mong Cai sows kept in small hold farms in Central Vietnam.