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Effects of Mexican sunflower (Tithonia diversifolia) replacing soybean meal in beef cattle feed formulas on in vitro gas production kinetics and degradability |
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| รหัสดีโอไอ | |
| Creator | Suban Foiklang |
| Title | Effects of Mexican sunflower (Tithonia diversifolia) replacing soybean meal in beef cattle feed formulas on in vitro gas production kinetics and degradability |
| Contributor | Ratthapon Pontian, Sineenart Polyorach, Anusorn Cherdthong, Narakamol Laorodphan |
| Publisher | Faculty of Agriculture |
| Publication Year | 2569 |
| Journal Title | Khon Kaen Agriculture Journal |
| Journal Vol. | 54 |
| Journal No. | 2 |
| Page no. | 354-365 |
| Keyword | Mexican sunflower, in vitro degradability, gas production kinetics |
| URL Website | https://li01.tci-thaijo.org/index.php/agkasetkaj |
| Website title | Khon Kaen Agriculture Journal |
| ISSN | 3027-6497 (Online) |
| Abstract | Mexican sunflower (Tithonia diversifolia) is widely found in upper northern Thailand, where it is commonly cultivated for ornamental purposes as a tourist attraction. However, it has high nutritional value, especially protein, but has not yet been utilized as animal feed in Thailand. Therefore, this study aimed to investigate the effects of replacing soybean meal with Mexican sunflower in beef cattle diets on gas production kinetics and in vitro degradability. A completely randomized design (CRD) was employed, divided into 6 treatments (T1–T6) with 3 replications per treatment. Soybean meal was replaced with Mexican sunflower (on a dry matter basis) at ratios of 100:0, 80:20, 60:40, 40:60, 20:80, and 0:100 in the concentrate diets, respectively. The results showed that Mexican sunflower contained 85.46% dry matter, 18.39% crude protein, 53.25% neutral detergent fiber (NDF), 42.29% acid detergent fiber (ADF), 2.25% ether extract, and 13.4% ash. Regarding gas production kinetics, the insoluble fraction (b), potential gas production (a + b), and cumulative gas production at 96 h were significantly different (P<0.01). The highest b value was observed in group T1 (133.85 ml/0.5 g DM), and the lowest was in T6 (115.80 ml/0.5 g DM). For the a + b value, the highest was in group T3 (135.57 ml/0.5 g DM), and the lowest was in T6 (119.35 ml/0.5 g DM). Cumulative gas production at 96 h was highest in T3 (130.97 ml/0.2 g DM) and lowest in T6 (114.33 ml/0.5 g DM). The soluble fraction (a), gas production rate (c), in vitro dry matter degradability, and in vitro organic matter degradability showed no significant differences (P>0.05). In conclusion, Mexican sunflower can replace soybean meal up to 60% without affecting the fermentation process and in vitro degradability, demonstrating its potential as an alternative animal feed resource. |
