• Asian-Australasian Journal of Animal Sciences
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• 제2권1호
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• pp.43-49
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• 1989

In spite of the well confirmed advantages of wilting on the fermentation quality, wilting silages are difficult to make at optimum dry matter content. The prolonged wilting, especially in humid condition, result in lower water soluble carbohydrate (WSC) contents, extensive protein breakdown and sometimes higher total volatile fatty acid (VFA) during wilting an ensilage. Apart from difficulty of controlling moisture content, another problem associated with wilted silages is different evaluation on the potential productivity. In temperature climate of Asia, therefore further researches on the effects of wilting on the silage fermentation and potential productivity seen to be necessary.

• Animal Bioscience
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• 제34권1호
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• pp.48-55
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• 2021

Objective: This study was conducted to investigate the effects of wilting and microbial inoculant treatment on the fermentation pattern and quality of Italian ryegrass silage. Methods: Italian ryegrass was harvested at heading stage and ensiled into vinyl bags (20 cm×30 cm) for 60d. Italian ryegrass was ensiled with 4 treatments (NWNA, no-wilting noadditive; NWA, no-wilting with additive; WNA, wilting no-additive; WA, wilting with additive) in 3 replications, wilting time was 5 hours and additives were treated with 106 cfu/g of Lactobacillus plantarum. The silages samples were collected at 1, 2, 3, 5, 10, 20, 30, 45, and 60 days after ensiling and analyzed for the ensiling quality and characteristics of fermentation patterns. Results: Wilting treatment resulted in lower crude protein and in vitro dry matter digestibility and there were no significant differences in acid detergent fiber (ADF), total digestible nutrient (TDN), water-soluble carbohydrate (WSC), ammonia content, and pH (p>0.05). However, wilting treatment resulted in higher ADF and neutral detergent fiber content of Italian ryegrass silage (p<0.05), and the WNA treatment showed the lowest TDN and in vitro dry matter digestibility. The pH of the silage was higher in the wilting group (WNA and WA) and lower in the additive treatment group. Meanwhile, the decrease in pH occurred sharply between the 3-5th day of storage. The ammonia nitrogen content was significantly lower in the additive treatment (p<0.05), and wilting had no effect. As fermentation progressed, the lactic and acetic acid contents were increased and showed the highest content at 30 days of storage. Conclusion: The wilting treatment did not significantly improve the silage fermentation, but the inoculant treatment improved the fermentation patterns and quality of the silage. So, inoculation before ensiling is recommended when preparing high quality of Italian ryegrass silage, and when wilting, it is recommended to combine inoculation for making high quality silage.

• Asian-Australasian Journal of Animal Sciences
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• 제16권6호
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• pp.843-851
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• 2003

An experiment was conducted to investigate the effects of pre-wilting Bana grass (Pennisetum purpureum x P. americanum) herbage under sunny conditions for 0, 6, 18, 24, 32 and 48 h and ensiling it with maize meal. Four levels of maize meal(viz., 0, 5, 10 and 15% on fresh weight (Fw) basis) were tested. The experiment had a split-plot design. Wilting increased the concentration of water soluble carbohydrates (WSC) significantly (p<0.001) on a Fw basis, although there were no significant changes on DM basis. Unwilted grass contained $36.1g{\cdot}WSC{\cdot}kg^{-1}{\cdot}Fw$ ($127.6g{\cdot}kg^{-1}{\cdot}DM$) and this increased to $64.1g{\cdot}WSC{\cdot}kg^{-1}{\cdot}Fw$ ($116.7g{\cdot}kg^{-1}{\cdot}DM$) after 48 h of pre-wilting. Wilting also increased the DM content of herbage significantly (p>0.001) from 250 to $620g{\cdot}kg^{-1}$, between 0 and 48 h respectively. The concentration of fermentation end-products decreased (except butyric acid) and pH increased when the period of wilting increased, indicating that fermentation was restricted. In particular, lactic acid content declined from 50.8 to $26.2g{\cdot}kg^{-1}{\cdot}DM$ (p<0.01) and the residual WSC contents of silage increased from 2.7 with fresh herbage to $18.1g{\cdot}kg^{-1}{\cdot}DM$ with 48 h of wilting (p<0.001). Rapid wilting for 24 h, to a DM of $450g{\cdot}kg^{-1}$ was optimum since important increases in pH, residual WSC and DMD occurred at this level of wilting. Acetic acid, butyric acid and ammoniacal-N contents were lowest with 24 h of wilting. There were no significant interactions between length of wilting and the incorporation of maize meal. Wilting had a greater influence on fermentation than the incorporation of maize meal. Addition of maize meal facilitated fermentation by increasing forage DM content and reducing effluent production. In addition, the maize meal increased DMD. It was concluded that maize meal should generally be incorporated at a level of 5% on fresh weight basis.

• Asian-Australasian Journal of Animal Sciences
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• 제33권2호
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• pp.254-263
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• 2020

Objective: The objective of this study was to investigate the effects of wilting and additives on the fermentation quality, structural and non-structural carbohydrate composition of mulberry silages. Methods: The selected lactic acid bacteria strains Lactobacillus plantarum 'LC279063' (L1), commercial inoculant Gaofuji (GF), and Trichoderma viride cellulase (CE) were used as additives for silage preparation. Silage treatments were designed as control (CK), L1, GF, or CE under three wilting rates, that is wilting for 0, 2, or 4 hours (h). After ensiling for 30 days, the silages were analyzed for the chemical and fermentation characteristics. Results: The results showed that wilting had superior effects on increasing the non-structural carbohydrate concentration and degrading the structural carbohydrate. After ensiling for 30 days, L1 generally had a higher fermentation quality than other treatments, indicated by the lower pH value, acetic acid, propionic acid and ammonia nitrogen (NH₃-N) content, and the higher lactic acid, water soluble carbohydrate, glucose, galactose, sucrose, and cellobiose concentration (p<0.05) at any wilting rate. Wilting could increase the ratio of lactic acid/acetic acid and decrease the content of NH₃-N. Conclusion: The results confirmed that wilting degraded the structural carbohydrate and increased the non-structural carbohydrate; and L1 exhibited better properties in improving fermentation quality and maintaining a high non-structural carbohydrates composition compared with the other treatments.

• 한국조경학회지
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• 제22권4호
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• pp.75-80
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• 1995

It is important to estimate the possibility of recovery in physiologically damaged woody plant. It is suggested that C.E.R(cambial electrical resistance) might be a useful method to predict the permanent wilting point. D/A and A/D converter can be used to measure the C.E.R and it took only 10-20 msec for a measurement and the values were stable during this study. A computer could be used for the continual measurement of C.E.R. There were very big daily changes of C.E.R. was changed according to the changes of indoor temperature, but the phase was slightly different. It is reasoned that daily changes in C.E.R. is induced by the changes of water potential and cambial thickness. It was difficult to detect the changes of C.E.R. caused by changes in soil moisture under high soil water potential. Under low soil water potential, the changes in soil moisture under high soil water potential. Under low soil water potential, the changes of C.E.R. can be detected. After wilting, C.E.R. is increased very rapidly. When C.E.R. is not decreased by watering, it will be permanent wilting point. But it takes several days to confirm the permanent wilting point. To predict the possibility of recovery from wilting, the values of C.E.R. have no meaning. But the changes of C.E.R. are significant. Therefore we can predict the permant wilting point in woody plant by monitoring the change of C.E.R. by the computer.

• Asian-Australasian Journal of Animal Sciences
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• 제14권9호
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• pp.1233-1237
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• 2001

A study was conducted to determine the effects of maturity at harvest and wilting days on the quality of round baled rye (Secale cereale L.) silage. This study was a $3{\times}3$ factorial arrangement in a split plot design with 3 replicates. The main plot was 3 harvesting dates at the stage of boot (20 Apr.), heading (29 Apr.) and flowering (14 May). The subplot was wilting day : 0 (unwilted), 0.5 and 1 day (0, 1, and 2 days at boot stage). Acid detergent fiber (ADF) and neutral detergent fiber (NDF) contents of rye silage were significantly greater than those of rye before ensiling, but crude protein (CP) content and in vitro dry matter digestibility (IVDMD) were vice versa. Buffering capacity (BC) of rye harvested at flowering stage was decreased from 264 to 202 meq/kg at 1 day wilting, however, it was increased when harvested at boot or heading stage. The pH in wilted silage was the highest while that of flowering stage was the lowest. Water soluble carbohydrate (WSC) content of wilting rye was lower than that of unwilted, and the lowest at late harvesting stage. All plots had minimal WSC content for silage fermentation. Wilting treatment and delayed harvesting date caused an increase in dry matter (DM) content of round bale silage. The content of ammonia-N expressed as a portion of total N showed negative correlation with DM content. High quality silage according to ammonia-N content could be obtained from mid-harvest with wilting. There were highly significant differences in each organic acid between harvesting dates and wilting periods. Acetic and butyric acid contents were increased with delayed harvesting and prolonged wilting period, the lactic acid content, however, was decreased. This study demonstrated that harvest of rye from heading to flowering stage with wilting would be a recommendable method for making high quality rye silage using round bale system.

• 한국초지조사료학회지
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• 제20권3호
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• pp.185-192
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• 2000

This experiment was canied out to determine the effect of management practices on the quality of round baled oat silage at experimental field of Grassland and Forage Crops division, National Livestock Research Institute, RDA, Suwon from 1997 to 1998. The experiments are consist of randomized block design with 3 replications. The treatments are 3 wilting dates(0, 2 and 4 days), 3 wrap colors(white, black and green and 3 inoculant(untreated, Inoculant A and Inocuant B). The crude protein(CP) content was increased by prolonged wilting periods, but the effect of wrap color and inoculant were not founded. Acid detergent fiber(ADF) and neutral detergent fiber(NDF) content of all silages were not founded significant difference, but in vitro dry matter digestibility of oat silage with inoculant was significantly higher compare with control. Wilting treatment increased the mean silage acidity compare with control and inoculant treatment significantly reduced silage acidity. Wrap color did not influence the silage acidity. Wilting or inoculant treatments increased lactic acid content but, decreased the content of acetic and butyric acid. The quality grade of all silage were grade 3, except inoculant treated silage. Wilting or inoculant decreased silage DM loss, but wrap color did not effect on siage DM loss. The result of this study indicate that wilting for 2-4 days and inoculant will improve the silage fermentation and quality of round baled oat silage. (Key words : Oat, Wilting, Inoculant, Wrap color, Round bale silage)

• 한국식품저장유통학회지
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• 제13권3호
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• pp.299-303
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• 2006

수박꼭지의 시듦 현상을 지연시키기 위해 수박꼭지에 바셀린, 왁스, 대두유, 접착라벨지 등을 처리한 후 $7^{\circ}C$ 저온에서 저장한 결과, 수박꼭지에 바셀린을 발랐을 때 시듦이 가장 지연되었고, 접착라벨지를 처리한 경우 외관상 상품성이 가장 우수하였다. 왁스와 대두유의 경우 개선효과가 없었다. 수박꼭지의 시듦에 미치는 요인을 조사하였는데, 수박꼭지의 수분함량은 수박꼭지의 시듦과 밀접한 관계가 있었으며, 수박꼭지의 수분함량이 높을수록 수박꼭지의 시듦은 지연되었다. 반면 일반 세균의 경우 어떤 유의성도 없었다. 수박꼭지의 저장수명과 수박과육의 저장수명을 비교한 결과, 수박꼭지의 시듦 현상이 수박과육의 부패 현상보다 빨리 진행되어 수박꼭지의 시듦이 수박의 상품성을 판단하는 하나의 방법임을 밝혔다.

• 한국농공학회지
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• 제35권4호
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• pp.31-38
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• 1993

For efficient irrigation of structured horiculture and upland crops, a new technique of drip irrigation using the turbo-tape for Autumn Chinese cabbage was developed. The turbo-tape worked well, and based on this study The following results were obtained ; 1. The emission uniformity of the turbo-tape was very good with a uniformity coefficient of 92.5%. 2. Starting point of irrigation at 80% of the wilting point was better than at the wilting point itself. 3. The irrigation amounts for the Autumn Chinese cabbage cultured ranged 315 to 470mm depending upon the irrigation methods, turbo-tape irrigation method could conserve irrigation water about 37% compared to the furrow irrigation method. 4. Average yields were 2, 430g when the starting point of irrigation was at the wilting point, while 2, 680g when it was at 80% of the wilting point.

• 한국유기농업학회지
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• 제17권4호
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• pp.519-527
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• 2009

수수$\times$수단그라스 교잡종 사일리지의 큰 문제점은 낮은 건물률과 품질이다. 본 시험은 수수$\times$수단그라스 교잡종을 재배하는 포장에서 예건으로 사일리지의 건물률과 품질을 향상시키기 위하여 실시하였다. 시험구배치는 5처리 3반복의 완전임의배치법으로 하였다. 시험구의 처리는 비예건(대조구), 예건 0.5일, 예건 1일, 예건 2일 및 예건 3일의 5수준을 두었다. 예건한 수수$\times$수단그라스 교잡종 사일리지의 pH는 4.0 이하였으나, 비예건 사일리지의 pH는 4.30으로 가장 높았다(p<0.05). 비예건 사일리지의 건물률은 17.6%였으나 예건한 사일리지의 건물률은 예건 1일 후부터는 25.1% 이상이었다(p<0.05). 예건한 사일리지의 침출수는 예건을 많이 함에 따라 감소하였으나, 비예건 사일리지의 침출수는 283mL/kg로 가장 많았다(p<0.05). 예건을 함에 따라 사일리지의 조단백질 및 조지방 함량은 감소하였으나, 조회분함량은 증가하였다(p<0.05). 비예건보다 예건 사일리지의 ADF 및 NDF 함량은 증가하였으나, 비섬유성탄수화물(NFC) 함량은 감소하였다(p<0.05). 젖산 및 유기산 함량은 예건 일수를 증가함에 따라 증가하였으나 예건 1일부터는 변화가 없었다(p<0.05). 유산양의 기호성도 예건 1일이 가장 높았다. 이상의 결과를 종합해 볼 때 수수$\times$수단그라스 교잡종 사일리지 제조시 예건이 건물률 증가에 의하여 침출수를 줄이고, pH와 사일리지 품질을 개선하는 효과가 있었으며 예건일수는 1일이 가장 적합하였다.