Soil Science Commons^™

Effect Of Lactobacillus Plantarum On Fermentation Quality Of Alfalfa Silages Mixed With Different Proportions Of Jujube Powder, Jipeng Tian, Zhu Yu, Zhongkuan Liu, Zhenyu Liu, Qing Zhang, Xujiao Li, Yu Wang

IGC Proceedings (1977-2023)

Hebei province is one of the main production areas of alfalfa (Medicago sativa) in China. While alfalfa is used to make silages, it is necessary to improve the fermentation quality of alfalfa silage. Jujube powder which contains a high content of sugar, might be a good material to ensile mixed with alfalfa. On the other hand, the effect of lactic acid bacteria (LAB) has been documented and has been used as an additive to achieve good preservation of silage.

The objective of this study was a) to screen different ratios of jujube powder in the mixed silage of …

Forage Intake And Nitrogen Retention In Wethers Fed Ryegrass Haylage Supplemented With Maize Silage, João G. R. Almeida, Henrique M. N. Ribeiro Filho, Ederson A. De Andrade, Gabriela C. Guzatti, Paulo G. Duchini, Gutierri T. Raupp, Fabiana R. Ramos, Rémy Delagarde

IGC Proceedings (1977-2023)

Many decision support tools have been developed to predict herbage intake with herbivore ruminants indoors (Faverdin 1992) or at grazing, both using short-term (Baumont et al. 2004) or daily scale input variables (Heard et al. 2004; Delagarde et al. 2011). However, the ingestive and digestive interactions when diets with more than one type of forage are used have not been sufficiently studied. The aim of this study was to assess the effects of maize silage supplementation to wethers receiving ryegrass haylage on OM intake, OM digestibility, microbial protein synthesis and N retention.

Characterization And Identification Of Lactic Acid Bacteria Isolated From Silage Prepared In Lao Pdr, Yimin Cai, Huili Pang, Viengsakoun Napasirth

IGC Proceedings (1977-2023)

Silage is now the most common preserved cattle feed in many countries and lactic acid bacteria (LAB) play an important role during silage fermentation process. In order to establish an animal feed production system to cover the shortage of animal feed in the dry season of Lao PDR, silage fermentation technology is needed that has potential application in poor villages. Therefore, the characterization of LAB in various forage crops and their species identification requires further study. In the present study, the characterization of LAB species isolated from forage crops in Lao PDR was examined. In order to determine their taxonomic …

The Effect On Long-Chain Fatty Acids In Lucerne Silage With Jujube Powder And Lactobacillus Plantarum, Zhu Yu, Yu Wang, Jipeng Tian, Xujiao Li, Qing Zhang

IGC Proceedings (1977-2023)

The major nutrients of lucerne silage are well documented. However, forages are also an important dietary source of α-linolenic acid (C18:3n-3) and linoleicacid (C18:2n-6) that are biohydrogenated in the rumen, originating a complex pattern of C18 fatty acids (Jenkins et al. 2008). Studies have reported slight effects on the fatty acid (FA) composition of grass silages by the use of additives like formalin, formic acid, or enzymes (Alves et al. 2011) However, there are no studies on the addition of jujube powder in lucerne silage, which has a high sugar content. The effect of Lactobacillus plantarum (LA) on …

Increased Sugar Concentration With Pm-Cutting And Wide Swathing Improves Alfalfa Silage Fermentation, Gaëtan F. Tremblay, Chantale Morin, Gilles Bélanger, Annick Bertrand, Yves Castonguay, Réal Michaud, Robert Berthiaume, Guy Allard

IGC Proceedings (1977-2023)

Extensive protein degradation during silage fermentation reduces the efficiency of N utilization by ruminants and excess N is excreted in the environment. Forage nonstructural carbohydrates (NSC) represent the main source of readily fermentable energy for lactic bacteria during silage fermentation. Increasing forage NSC concentration can enhance silage fermentation, lactic acid production, and the decline in pH with an overall reduction in the extent of protein degradation.

The NSC concentration increases during the day in alfalfa (Medicago sativa L.) to reach a maximum by the end of the afternoon. Under good wilting conditions, PM-cut alfalfa wilted in wide swaths had …

Effect Of Associations Of Additives On Ph And Ndf In Sugar Cane Silages (Saccharum Officinarum), C. A. Da Silva, A. A. R. Athayde, A. O. Ribeiro, A. R. Evangelista, P. C. Leite, A. C. A. F. F. Paula

IGC Proceedings (1977-2023)

An alternative to the seasonality of forage production in grazing-lands is the maintenance of feed supplies through the use of silages (Carvalho et al. 2007). Sugar cane stands out for silage production, mainly because of its high yield per hectare. There are, however, restrictions to its use in cattle production systems including the daily cutting demands, low digestibility of fiber and low contents of protein and minerals. Sugar cane ensiling can solve, or even reduce the seasonality of the crop and the losses by fire or frost, and has been utilized in cattle raising for these logistic and operational …

A Lactic Acid Bacterium Isolated From Grass In Native Grassland In Northern China, Qing Zhang, Zhu Yu, Jipeng Tian, Xujiao Li, Yu Wang

IGC Proceedings (1977-2023)

The epiphytic LAB converts sugar into lactic acid during the ensiling process. As a result, the pH is reduced, and the forage is preserved. Therefore, further study of epiphytic LAB species is required, especially the screening of excellent LAB. However, to our knowledge, limited information is available on the epiphytic microflora on grass in native grassland. The present study set out to screen, isolate and identify the LAB from grass silages made in native grass-land in northern China.

A Bayesian Model Of Pasture Curing, Helen G. Daily, Ross Corkrey

IGC Proceedings (1977-2023)

Curing percentage (the percentage of dead material in the sward) is a necessary component of fire behaviour modelling and subsequent fire danger ratings in grasslands. Current methods of estimating curing have limitations. Curing is controlled by leaf turnover in grasses but individual leaf turnover rates of themselves do not give estimates of curing. Bayesian modelling provides the potential to incorporate leaf turnover rates representing the entire life cycle of each leaf into a standalone model of curing from which statistical summaries can be generated and used in field models. In this study, curing percentage was estimated over thermal time for …

Effect Of Adding Functional Lactic Acid Bacteria At Ensiling On The Fermentation Quality And Nutritive Value Of Oat Silage, Kohei Takahashi, Keigo Asano, Takashi Koyanagi, Motohiko Ishida

IGC Proceedings (1977-2023)

Livestock are exposed to stressors from the environment such as temperature, humidity and intensive feeding. Strong stress can cause animals to perform an atypical behavior and/or result in lower productivity, and livestock weanlings, which do not have as strong a body as the adult livestock, are more severely affected by stress. Functional silage that increases the stress tolerance of livestock may thus be beneficial. Some lactic acid bacteria (LAB) in human food were found to have a probiotic effect to ease stress, but it has not been established whether these LAB can affect the qualities of silage fermentation. Here we …

Nutritive Quality Of Hay And Silage From Natural Grazing Land In South Western Nigeria, Victoria O. A. Ojo, Alaba O. Jolaosho, Oluwasanmi M. Arigbede, Peter A. Dele, Samson A. Adeoye, Ronke Y. Aderinboye, Oluwaseun J. Idowu, Oludotun O. Adelusi

IGC Proceedings (1977-2023)

In the tropics, inadequate nutrition caused by scarcity of forages and its low quality constitutes a major constraint to good performance of ruminant animals (Lukuyu et al. 2011). Herbage availability during the wet season often exceeds animal requirements (Chakoma et al. 1999). As the dry season sets in, the protein level of the accumulated forages drops and the fibre level increases, with an increase in lignin content while voluntary intake decreases. Due to lack of quality forage especially in the dry season, animals feeding on them tend to lose weight and their productivity will be negatively affected.

In …

Statistical Analysis Of Nutrient Loads From The Mississippi-Atchafalaya River Basin (Marb) To The Gulf Of Mexico, Phyllis Okwan, Yi Zhen, Huan Feng, Shinjae Yoo, Murty S. Kambhampati, Abreione Walker, Shayne Boykin, Joe Omojola, Noel Blackburn

Department of Earth and Environmental Studies Faculty Scholarship and Creative Works

This study investigated the annual and seasonal variations in nutrient loads (NO₂⁻ + NO₃⁻ and orthophosphate) delivered to the Gulf of Mexico from the Mississippi-Atchafalaya River Basin (MARB) and examined the water quality variations. The results indicate that (1) annually, the mean NO₂⁻ + NO₃⁻ and orthophosphate loads showed a steady increase during 1996–1999, a persistent level during 2000–2007, and a moderate increase during 2008–2016; (2) seasonally, NO₂⁻ + NO₃⁻ and orthophosphate in MARB in spring and summer were higher than those in autumn and winter. Analysis of …

Impact Of Grazing On The Silage Yield Of Forage Oat Crops, Keith G. Pembleton, Matthew T. Harrison, Richard P. Rawnsley

IGC Proceedings (1977-2023)

Winter forage oat crops are increasing in acreage on Tasmanian dairy farms. Such crops can be grazed multiple times during vegetative development in winter then later harvested for silage at the booting or soft dough growth stages in spring. Although effects of grazing on grain yield of winter cereal crops have been well characterised (Harrison et al. 2011), little research has been conducted on the influence of grazing on the forage and silage yield potential of oats grown in Tasmania.

We aimed to explore the influence of grazing management on the yields of forage for grazing and ensiling of …

Effects Of Additives On The Quality Of Leymus Chinensis Silage, J. J. Sun, Zhu Yu, Yanlin Xue, C. S. Bai

IGC Proceedings (1977-2023)

Leymus chinensis, which is a perennial plant with good palatability and high forage value, is widespread from the southern Chinese Loess plateau to northern Russian Baikal and from the Sanjiang plain of eastern China to Ulaanbaatar in Mongolia. Grazing and hay are the most common ways Leymus chinensis is utilized. The quality of Leymus chinensis silage is poorly understood. This study was conducted to investigate the fermentation quality and the in vitro digestibility of Leymus chinensis silage treated with lactic acid bacteria (LAB) and cellulose (CE).

Effect Of The Ratio Of Materials Used In Fermented Total Mixed Ration On The Aerobic Stability Of The Tmr Compared With A Mixed-Silage, C. S. Bai, Yanlin Xue, Zhu Yu, H. D. Fu, J. P. Tan, Qing Zhang

IGC Proceedings (1977-2023)

Fermented Total Mixed Ration (TMR) is an important forage for livestock, but if it has a high content of protein, the aerobic stability is poor (Wang, 2008). There is little published information about the aerobic stability of fermented TMR. This experiment was undertaken to study the effects of the ratio of materials used in TMR and mixed-silage on the pH, the numbers of lactobacillus, mould and yeast, and the temperature of the fermented TMR and mix-silage after opening.

The Effect Of Additives On Mixed Silage Quality Of Sugar Beet And Corn Stalks, Qizhong Sun, Hongmei Wang

IGC Proceedings (1977-2023)

Sugar beet is a main economic crop in the northeast region of China. Ensilaging sugar beet mixed with other forages, provides green feedstuff for livestock in spring and winter. The ensilaging could avoid mildew and rot of fresh forages and would decrease environmental pollution (Liu 1996).

The aim of this study was to evaluate the influence of silage additives on mixed silage quality of corn stalks and sugar beet.

Winter Crop Evaluation For Silage And Forage Quality In Korea, J. D. Kim, H. W. Lee, J. K. Lee, J. K. Kim, C. H. Kwon

IGC Proceedings (1977-2023)

Winter crops of rye, barley, oats and Italian ryegrass are used alone or combined as silage crops or green forage in autumn and spring in Korea. The production and utilization of winter crops have been increasing since 2000, because of high yield and double cropping potential in the rice field after harvesting rice. An advantage of these winter crops is that they are produced in the cool season. However, a main problem in making silage with these winter crops is that they are sometimes poor in quality for various reasons.

Therefore we conducted a survey of farms and forage selling …

Effects Of Lactic Acid Bacteria On The Quality Of Achnatherum Splendens Silage, Yanlin Xue, G. M. Yin, H. P. Zhao, Q. Z. Sun, Zhu Yu, C. S. Bai

IGC Proceedings (1977-2023)

Achnatherum splendens is an important forage for ruminant animals, but it has a high fiber content, and there is little information about the quality of Achnatherum splendens silage. This experiment was undertaken to study the effects of lactic acid bacteria on the quality of Achnatherum splendens (AS) silage.

Quality Of Baled Grass-Clover Silage As Affected By Additives And Harvest Methods, Elisabet Nadeau, Ola Hallin, Horst Auerbach, John Jakobsson, Annika Arnesson

IGC Proceedings (1977-2023)

Previous studies have shown increased loading and ensiling capacities with a rotor cutter wagon compared to a precision chopping wagon with no effects on silage fermentation (Arvidsson and Lingvall 2005; Lingvall and Knicky 2008). However, to our knowledge, there are no studies on the effects of different mowing techniques in combination with chopping/cutting of the forage at harvest when the forage is ensiled with different types of additives.

The aim of this experiment was to investigate the effects of mowing method, chopping vs. cutting of the forage, types of additives and their interactions on grass-clover silage quality.

Improving Lucerne Forage Quality And Utilization By Using Novel Silage Inoculant, Vilma Vrotniakiene, Jonas Jatkauskas

IGC Proceedings (1977-2023)

Lucerne (Medicago sativa L.) is a protein-rich forage that farmers often combine with energy-rich feed sources to dairy cattle. Lucerne ensiles poorly, however, due to low sugar concentration and high buffering capacity. Ensiling is improved by wilting the crop and using an appropriate silage inoculant. The principal goal of inoculants is to improve fermentation quality, to preserve as much of the nutritive value of the crop at harvest as possible for the livestock consuming the resulting silage and to increase production (Meeske et al. 2000, Muck 2012).

The objectives of this study were to determine the effects of …

Silage Inoculants Improves Quality And Aerobic Stability In Grass, Clover-Grass And Lucerne Silage, Jonas Jatkauskas, Vilma Vrotniakiene, Christer Ohlsson, Bente Lund

IGC Proceedings (1977-2023)

The type of silage additive will influence the characteristics of fermentation, dry matter (DM) losses, hygienic quality and aerobic stability of silage. The appropriate use of an additive also depends on the crop to which it is applied. Homofermentative lactic acid bacteria (LAB) strains are selected for rapid growth under under variable temperatures, herbages and dry matter concentrations. The homofermentative LAB are highly competitive and produce largely lactic acid and reduce pH and ammonia-N content compared to untreated silage (Muck 2012). Heterofermentative LAB such as Lactobacillus buchneri reduce the growth of yeast and mould and increase aerobic stability. These effects …

Α-Tocopherol And Β-Carotene Concentrations In Legume-Grass Mixtures As Affected By Wilting And Ensiling, Elisabet Nadeau, Hanna Lindqvist, Søren Krogh Jensen

IGC Proceedings (1977-2023)

Fresh or preserved forage is the largest source of natural α-tocopherol and β-carotene for dairy cows. Plant species, wilting and method of preservation can affect the vitamin content of forage and, consequently, have a large impact on the concentrations of these vitamins in plasma of dairy cows (Agabriel et al.2007).

The aim of this study was to determine the effects of species mixture, wilting, ensiling and additive on the contents of α-tocopherol and β-carotene in legume-grass forages.

Effects Of Chemical Additives On Whole-Crop Maize Silage Traits, Horst Auerbach, Elisabet Nadeau

IGC Proceedings (1977-2023)

Fungi-associated aerobic instability of maize silages occurs frequently under practical farming conditions. The use of heterofermentative lactic acid bacteria inoculants of the Lactobacillus buchneri-type has been demonstrated to improve stability of silages exposed to air (Kleinschmidt and Kung 2006) but is not a viable option if the silo is closed for less than 8 weeks, and for the treatment of the upper layers, which are particularly prone to deterioration due to lower compaction. In those cases, antimycotic chemicals must be applied of which sorbates, benzoates and propionates are most efficient against fungi (Auerbach 1996; Woolford 1975). However, as commercial …

Using Fermented Juice Of Epiphytic Lactic Acid Bacteria (Fjlb) And Molasses To Improve Digestibility And Rumen Fermentation Characteristics Of Ruzigrass Silage Fed To Dairy Cows, Smerjai Bureenok, Chalermpon Yuangklang, Kraisit Vasupen

IGC Proceedings (1977-2023)

The effects of fermented juice of epiphytic lactic acid bacteria (FJLB) and molasses (MO) on ruzigrass silage digestibility and rumen fermentation characteristics in dairy cows were studied. All treated silages were well-preserved as indicated by the pH value and NH3-N content. Silage treated with MO or MO-FJLB had lower pH and higher lactic acid contents than untreated silages and FJLB silages. Butyric acid was not detected in the FJLB silage. Water soluble carbohydrate (WSC) was higher in the MO silages; neutral detergent fiber (NDF) and acid detergent fiber (ADF) did not differ significantly. Dry matter intake in cows fed with …

High-Sugar Alfalfa For Dairy Cows, Robert Berthiaume, Andre F. Brito, Gaëtan F. Tremblay, Gilles Bélanger, Carole Lafrenière, Annick Bertrand, Yves Castonguay, Réal Michaud, Guy Allard

IGC Proceedings (1977-2023)

Alfalfa proteins are extensively degraded during wilting, silage fermentation, and in the rumen. To efficiently use alfalfa non protein N, rumen microbes need a readily available energy source such as nonstructural carbohydrates (NSC); otherwise, surplus N in the form of rumen ammonia is converted into urea and excreted in the environment. Increasing the NSC concentration of alfalfa was thus the focus of our research program. Our objectives were to assess the impact of high NSC alfalfa on digestibility and microbial protein synthesis measured in vitro, and on ingestion, rumen metabolism, N use efficiency, and dairy cow performance. Increasing NSC concentration …

Lessons From Silage Adoption Studies In Honduras, Christoph Reiber, Rainer Schultze-Kraft, Michael Peters, Volker Hoffmann

IGC Proceedings (1977-2023)

Silage adoption has so far been low in the tropics, particularly under smallholder conditions. Innovation and adoption processes of silage technologies were promoted in drought-constrained areas of Honduras using a flexible, site-specific and participatory research and extension approach. A total of about 250 farmers participated in training workshops and field days conducted in 13 locations. Smallholders successfully ensiled maize, sorghum and/or Pennisetum spp. mainly in heap and earth siloswhereas little bag silage (LBS) adoption was low. LBS proved useful as a demonstration, experimentation and learning tool. A ‘silage boom’ occurred in five locations where favourable adoption conditions included the presence …

Novel Results On The Formation Of Volatile Organic Compounds (Voc) In Silages, Kirsten Weiss, Horst Auerbach

IGC Proceedings (1977-2023)

The incidence of volatile organic compounds, including ethyl esters of lactic and acetic acids, in grass silages was evaluated based on a total of 620 samples from 10 different lab-scale ensiling experiments. These substances were detected after cold-water extraction by gas-chromatography. The correlations between ethanol and esters concentrations varied greatly depending on the trial. It was shown that ethanol concentration and pH of the silages affected ester formation. Low silage pH stimulated ester accumulation. Up to pH of 4.3, a stronger relationship between ethanol and esters contents was found than in grass silages having higher pH values. By allocating the …

Challenges And Solutions For Forage Conservation For Small And Large Enterprises, M. Goto, H. Kawamoto, H. Matsuyama, Ryuichi Uegaki

IGC Proceedings (1977-2023)

Forage conservation, particularly silage making, is one of the major technologies used as an interface between forage production and animal production, and the advanced technology of biological, chemical, and enzymatic additives for making silage has contributed significantly to the development of livestock production. However, the increasing demand for meat and dairy products, severe environmental deterioration induced by livestock production, and the critical risks to human health associated with mycotoxin contamination of forage crops remain to be addressed. Here we review the extant literature regarding treatment with various silage additives in relation to new paddy field forage production systems, mycotoxin contamination …

Application Of Nirs In Nutrient Composition Evaluation Of Lathyrus Sativus, Yanpei Wu, Yanrong Wang

IGC Proceedings (1977-2023)

Near Infrared Reflectance Spectroscopy (NIRS) Analysis has applied to measure nutrient composition successfully in many forage species (Jerry et al. 2003). Lathyrus sativus, an annual legume, is the only edible legume among Lathyrus with crude protein up to 30% (Jackson and Yunus 1984). It has high drought tolerance, and can grow well in barren soil. Thus, this species has a great potential as a crude protein source for livestock in arid and semi-arid area. To introduce this species into a grassland system in Northwest of China, developing a rapid method to deter-mine nutrient composition of various accessions is …

Fibre Quality In Timothy, Festulolium And Tall Fescue Around First Cut, Magnus A. Halling

IGC Proceedings (1977-2023)

Fibre quality and available energy expressed as iNDF (indigestible neutral detergent fibre) decrease with maturity stage in timothy (Nordheim-Viken and Volden 2009). It is widely accepted that fibre quality also decreases with plant age in other forage grasses. However, climate factors such as temperature and water availability can interact with maturity stage in determining iNDF (Nordheim-Viken and Volden 2009). In the Norfor system, iNDF is an important measure of available energy in forage evaluation for ruminants (Åkerlind et al. 2011). This study examined how fibre quality in different forage grasses was affected by maturity stage and climate.

Pastures In Production Management In Madagascar, Isabelle H. Hantanirina, Jean De N. Rakotozandriny

IGC Proceedings (1977-2023)

In Madagascar, natural pasture is found across extensive areas of the landscape and has inherently low productivity. There is limited management of these areas and limited management inputs, such as fertiliser or introduced sown pastures (Morat 1973). Natural pasture has a prominent place in animal production, however, consumer demand for milk, meat and other products mean that greater animal productivity is required than that achieved on natural pastures. This is the case for dairy farming in the highlands of Madagascar. The use of exotic pastures has become necessary for better production.

The aim of this study was to evaluate feed …