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Articles 43711 - 43740 of 294411

Full-Text Articles in Physical Sciences and Mathematics

The Seasonal Nutritional Value Of Kikuyu Oversown With Ryegrass And Clover, Robin Meeske, Philip R. Botha, Hennie A. Snyman Apr 2023

The Seasonal Nutritional Value Of Kikuyu Oversown With Ryegrass And Clover, Robin Meeske, Philip R. Botha, Hennie A. Snyman

IGC Proceedings (1977-2023)

To overcome the seasonality and relatively low forage quality of kikuyu (Pennisetum clandestinum), annual ryegrass (Lolium multiflorum spp.), perennial white (Trifolium repens) and red clover (Trifolium pratense) can be incorporated into an existing kikuyu stand to improve pasture quality and spring production. The aim of this study was to determine the quality of kikuyu (K), kikuyu oversown with annual ryegrass (KR), kikuyu oversown with a mixture of perennial ryegrass (Lolium perenne) and perennial white and red clover (KRC) and kikuyu oversown with a mixture of white and red clover (KC), in …

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Liveweight Gain Of Lambs Grazing Six Short-Term Ryegrass Cultivars, W. W. Nichol, M. G. Norriss Apr 2023

Liveweight Gain Of Lambs Grazing Six Short-Term Ryegrass Cultivars, W. W. Nichol, M. G. Norriss

IGC Proceedings (1977-2023)

Increasing dry matter (DM) production per ha is a key goal in ryegrass (Lolium) breeding programmes (Easton et al., 2002), based on the assumption that increased DM yield will in turn increase profitability per ha, through an increase in animal productivity. However, the performance of animals grazing pasture can also be modified by the quality of the forage on offer, and the presence of toxins within the pasture. The objective of this study was to compare the liveweight gain per hectare of lambs grazing six short-term ryegrasses, which had been selected for various combinations of improved DM …

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Year-Round Grazing Of Beef Cows On Pangolagrass (Digitaria Decumbens Cv.Transvala) Pasture In Southern Area Of Japan, Yuji Nakanishi, Kiyoshi Hirano, A. Shouji Apr 2023

Year-Round Grazing Of Beef Cows On Pangolagrass (Digitaria Decumbens Cv.Transvala) Pasture In Southern Area Of Japan, Yuji Nakanishi, Kiyoshi Hirano, A. Shouji

IGC Proceedings (1977-2023)

The southern area of Japan (Okinawa) has a sub-tropical climate. In this area beef calf production is now based on year-round grazing on giant stargrass (Cynodon aethiopicus Clayton & Haylan). However, the numbers of beef cows in this area are increasing rapidly and a grass with higher productivity than giant stargrass is required. The objective of this experiment was to examine the possibility of using pangolagrass (Digitaria decumbens cv. Transvala) pasture in this area.

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Agronomic Performance And Genetic Variability Of Panicum Maximum Accessions In The Cerrado Of Federal District, Brazil, F. D. Fernandes, G. B. Martha Jr., Fabio G. Faleiro, Allan K. B. Ramos, R. P. Andrade, Claudio T. Karia, Lourival Vilela, Liana Jank Apr 2023

Agronomic Performance And Genetic Variability Of Panicum Maximum Accessions In The Cerrado Of Federal District, Brazil, F. D. Fernandes, G. B. Martha Jr., Fabio G. Faleiro, Allan K. B. Ramos, R. P. Andrade, Claudio T. Karia, Lourival Vilela, Liana Jank

IGC Proceedings (1977-2023)

In the last three decades, the Brazilian Savanna (locally called "Cerrado") became the most important beef cattle production region in Brazil. Around 90% of all beef produced in the region comes from pasture-based systems. Intensively-managed and fertilised Panicum maximum pastures can be highly productive and economic. As a result, farmers are demanding new P. maximum cultivars for using in well-fertilised pastures or in crop-pasture rotation systems. This study aimed to evaluate the agronomic performance and the genetic variability of P. maximum accessions in the Brazilian Cerrado.

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Economic Comparison Of Pasture Based Lamb Production Systems In Southern Australia, A. J. Kennedy, A. N. Thompson Apr 2023

Economic Comparison Of Pasture Based Lamb Production Systems In Southern Australia, A. J. Kennedy, A. N. Thompson

IGC Proceedings (1977-2023)

Lamb production enterprises in southern Australia utilise a pasture base as their primary nutrition source due to its low cost. Holmes Sackett & Associates (2003) identified that increasing total lamb weight per hectare by increasing ewe stocking rate, animal genetic potential and weaning percentage can increase enterprise profitability. The limitation of these enterprises is the seasonal and geographic variations impeding pasture production and quality. The 'MoreLamb Quality Pasture' project is demonstrating the benefits of mixing high performing grass, legume and herb species to extend the pasture-growing season and increase pasture quality. Key economic indicators of three pasture systems and commercial …

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The Impact Of Tillage System For Small-Grain Pasture Establishment On The Performance Of Growing Beef Calves In Arkansas, P. Beck, S. Gunter, M. Anders, K. Lusby, D. Hubbell Apr 2023

The Impact Of Tillage System For Small-Grain Pasture Establishment On The Performance Of Growing Beef Calves In Arkansas, P. Beck, S. Gunter, M. Anders, K. Lusby, D. Hubbell

IGC Proceedings (1977-2023)

In the United States, governmental regulations mandate the improvement of farming practices to improve environmental quality. There is a requirement to reduce the siltation of waterways, soil carbon losses, and nutrient runoff along the Mississippi River Delta. The use of small-grain forages by grazing cattle offers real opportunities to produce high-quality forage for cattle production during the winter and spring months. No-till and reduced tillage practices developed primarily for grain production may offer environmental and economic solutions for both grain farmers and cattle producers. Producers are slow to adopt conservation tillage practices because of a perceived risk of reduced production. …

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Urea Applied To Puccinellia-Based Pastures Increases Pasture And Sheep Production, M. L. Hebart, N. J. Edwards, A. D. Craig, E. A. Abraham, J. D. Mcfarlane, J. E. Hocking Edwards Apr 2023

Urea Applied To Puccinellia-Based Pastures Increases Pasture And Sheep Production, M. L. Hebart, N. J. Edwards, A. D. Craig, E. A. Abraham, J. D. Mcfarlane, J. E. Hocking Edwards

IGC Proceedings (1977-2023)

In the 1950's large areas of native vegetation in the upper south east of South Australia (SA) were replaced with highly productive Hunter River lucerne. This maintained groundwater recharge at near pre-clearing levels. The area of lucerne was reduced dramatically in the late 1970's by a combination of lucerne aphids, wingless grasshoppers and drought. In 1981 severe flooding inundated large areas of the region, causing the saline groundwater to rise to the soil surface. Since that time, dryland salinity has been a feature of the local farming system and salt-tolerant pastures based on puccinellia (Puccinellia ciliata) were widely …

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Sustainability Of Beef, Dairy And Goat Production With Batiki Grass (Ischaemum Aristatum Var. Indicum) In The Dry Season In Samoa, E. M. Aregheore Apr 2023

Sustainability Of Beef, Dairy And Goat Production With Batiki Grass (Ischaemum Aristatum Var. Indicum) In The Dry Season In Samoa, E. M. Aregheore

IGC Proceedings (1977-2023)

Batiki grass (Ischaemum aristatum var. indicum) was introduced to Samoa from Fiji in the early 1970s to complement other existing natural or unimproved grasses and is now the most common propagated pasture grass in Samoa. The contrast between the wet and the dry seasons has a great impact on the nutritive value of batiki grass. Aregheore (2002) observed reduced growth rate, poor body condition score and low performance in steer calves and goats offered batiki as the sole diet during the dry season. This paper reports on the sustainability of beef, dairy and goat production with batiki grass …

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Goose Meat Production Responses To Grass Based Diets, P. Gyüre, G. Nagy, S. Mihók Apr 2023

Goose Meat Production Responses To Grass Based Diets, P. Gyüre, G. Nagy, S. Mihók

IGC Proceedings (1977-2023)

Goose meat and feather production are important elements of farming in Hungary. There were no available data on grass intake by geese or the production potential of grass in goose farming, therefore, we conducted a series of experiments between 2000 and 2003 on goose production responses to grass-based diets.

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Supplementing Dairy Cows In Late Lactation With High Quality Silages, Todd A. White, Trevor L. Knight, M. G. Hyslop, Tom J. Fraser Apr 2023

Supplementing Dairy Cows In Late Lactation With High Quality Silages, Todd A. White, Trevor L. Knight, M. G. Hyslop, Tom J. Fraser

IGC Proceedings (1977-2023)

Agriculture on the Canterbury Plains of New Zealand is a mixture of integrated cropping and pastoral enterprises. Cropping farmers often provide supplementary feed for dairy farmers by growing forages for high quality silage. Such silages can improve milk production by increasing dry matter (DM) intake and/or by alleviating deficiencies of either soluble carbohydrate or protein in pasture (Woodward et al., 2002). Legumes and/or cereals have potential to make large quantities of high quality silage (de Ruiter et al., 2002). This trial aimed to determine milk production and composition differences between three silages fed during late lactation.

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Whole Crop Cereal Silage In Dairy Production, J. Wallsten, L. Ericson, K. Martinsson Apr 2023

Whole Crop Cereal Silage In Dairy Production, J. Wallsten, L. Ericson, K. Martinsson

IGC Proceedings (1977-2023)

Whole-crop cereal silages (WCCS) are used to some extent in Sweden, but knowledge about the use of this feed for high yielding dairy cows is scarce. The crop is often harvested at different stages of maturity, from heading to yellow ripeness, which gives forages that differ in chemical composition. The purpose of this trial was to compare intake and milk production of dairy cows fed a WCCS based on barley harvested at three different stages of maturity.

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Effect Of Potato Pulp Silage Supplementation On Milk Production In Cows Grazing Temperate Pasture, Masaaki Hanada, Y. Aibibula, D. Okumura, Meiji Okamoto Apr 2023

Effect Of Potato Pulp Silage Supplementation On Milk Production In Cows Grazing Temperate Pasture, Masaaki Hanada, Y. Aibibula, D. Okumura, Meiji Okamoto

IGC Proceedings (1977-2023)

In a dairy farming system based on pasture in Japan, maize grain is generally used as an energy source for milking cows, with almost all grain been imported. Potato-pulp is one of the agricultural by-products derived from the starch industry in the northern island of Japan. In our previous study (Aibibula et al., 2004), it was demonstrated that potato pulp could be preserved for a long time by ensiling without additives, and that the digestible energy value of potato pulp silage (13 MJ/kg DM) was almost the same as beet pulp. From these results, it is possible that some …

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Weight Gain Of Nellore X Red Angus, Holstein X Zebu, And Nellore Steers Supplemented On Brachiaria Brizantha Cv. Marandú Pasture, R. A. Reis, D. Freitas, F. L. Fregadolli, L. M. A. Bertipaglia, T. T. Berchielli, K. T. De Resende, D. S. Ferreira, A. G. Caselli Apr 2023

Weight Gain Of Nellore X Red Angus, Holstein X Zebu, And Nellore Steers Supplemented On Brachiaria Brizantha Cv. Marandú Pasture, R. A. Reis, D. Freitas, F. L. Fregadolli, L. M. A. Bertipaglia, T. T. Berchielli, K. T. De Resende, D. S. Ferreira, A. G. Caselli

IGC Proceedings (1977-2023)

Supplementation is a very efficient approach for improving animal performance and gain/ha in grazing systems in tropical conditions. However, care needs to be taken to avoid substitution effects (Moore et al., 1999). Results may also depend on animal genetics and the availability and nutritional value of forage. This trial aimed to evaluate different levels of supplementation using steers from different genetic groups on palisade grass (Brachiaria brizantha cv. Marandú) pasture during the rainy season.

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Suitability Of Selenate Containing Silage Additives For The Supply Of Beef Cattle, Harald Laser Apr 2023

Suitability Of Selenate Containing Silage Additives For The Supply Of Beef Cattle, Harald Laser

IGC Proceedings (1977-2023)

Selenium concentrations in herbage are frequently insufficient (< 100 μg Se/kg dry matter (DM)) to meet the requirements of ruminants. Whereas increasing Se supply by feeding mineral mixtures is a reliable method to prevent Se deficiencies for dairy cows, adequate Se supplementation is more difficult to achieve in extensive systems (McDowell, 1996). A suitable measure could be the addition of Se to herbage before ensiling.

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Effect Of Supplementation On Performance And Faecal Particle Size Distribution For Yearling Horses And Weaned Calves Grazing Coastal Bermudagrass, F. M. Rouquette Jr., K. N. Grigsby, D. K. Hansen, G. D. Potter, W. C. Ellis Apr 2023

Effect Of Supplementation On Performance And Faecal Particle Size Distribution For Yearling Horses And Weaned Calves Grazing Coastal Bermudagrass, F. M. Rouquette Jr., K. N. Grigsby, D. K. Hansen, G. D. Potter, W. C. Ellis

IGC Proceedings (1977-2023)

Supplements are often fed, especially to horses, without realistic expectations of the magnitude of performance response nor knowledge of biological or economic efficiencies of supplementation. The objectives of this experiment were to compare performance of weaned calves vs yearling horses grazing 'Coastal' bermudagrass [Cynodon dactylon (L.) Pers] (COS) pastures with and without a protein-energy supplement, and to assess faecal particle size distribution for both calves and horses to document digesta dynamics.

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West African Dwarf Goat Response To Supplementary Feeding In Cameroon, E. Tedonkeng Pamo, B. Boukila, F. Tendonkeng, J. R. Kana Apr 2023

West African Dwarf Goat Response To Supplementary Feeding In Cameroon, E. Tedonkeng Pamo, B. Boukila, F. Tendonkeng, J. R. Kana

IGC Proceedings (1977-2023)

The production of the West African Dwarf goat (WADG) in Cameroon is very low, because of lack of proper nutrition. Nitrogen content is generally very low and fibre content is high, both in the grass and the crop residues which form the basis of their diet particularly during the dry season. Supplementation of these roughages is a promising way of alleviating nutrient deficiencies. Different types of supplementary feeding have been advocated to boost goat production (Leng, 2003), of which supplementary feeding with leguminous tree leaves is of high merit. The present study was undertaken to evaluate the effects of supplementary …

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Urea Molasses Multi-Nutrient Block (Ummb) As A Feed Supplement: Effect On Reducing Liveweight Losses In Yaks During The Cold Season Of Qinghai-Tibetan Plateau, China, R. J. Long, S. K. Dong, X. H. Wei, J. P. Wu Apr 2023

Urea Molasses Multi-Nutrient Block (Ummb) As A Feed Supplement: Effect On Reducing Liveweight Losses In Yaks During The Cold Season Of Qinghai-Tibetan Plateau, China, R. J. Long, S. K. Dong, X. H. Wei, J. P. Wu

IGC Proceedings (1977-2023)

Urea molasses multi-nutrient block (UMMB) has been widely used as a feed supplement to balance nutrition of ruminants fed low-quality forage-based diets in tropical and sub-tropical areas. This study was carried out to determine the effects of UMMB in reducing liveweight loss of both yak cows and calves grazing on low-quality pastures during winter on the Qinghai-Tibetan Plateau, China.

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New Advance In Forage Production And Dairy Industry In China, Zhiqiang Q. Li, J. G. Han Apr 2023

New Advance In Forage Production And Dairy Industry In China, Zhiqiang Q. Li, J. G. Han

IGC Proceedings (1977-2023)

There were 6.9 million dairy cows in China in 2002 with milk yield of 13 million t. These values were 21.4 and 26.7% higher respectively than in 2001. Milk yield per cow was 1891 kg, 4.4 % higher than in the previous year, but still one third lower than the world average. Milk fat and protein contents were about 3.2 and 3.0 % respectively, a little below the world average. Milk consumption was 10.9 kg per person, much lower than the world average (97.6 kg) So, although great changes have taken place in dairy breeding, forage production and disease control, …

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Productivity Of Sahiwal And Friesian-Sahiwal Crossbreds In Marginal Grasslands Of Kenya, W. B. Muhuyi, F. B. Lukibisi, S. N. Ole Sinkeet Apr 2023

Productivity Of Sahiwal And Friesian-Sahiwal Crossbreds In Marginal Grasslands Of Kenya, W. B. Muhuyi, F. B. Lukibisi, S. N. Ole Sinkeet

IGC Proceedings (1977-2023)

Dual-purpose cattle can be used to exploit the production potential of semi-arid grasslands of Kenya for milk and meat production. Although the Sahiwal is adapted to these grasslands, its productivity is low. In order to increase milk and meat productivity, the Sahiwal has been crossed with the Friesian to produce Friesian-Sahiwal crossbreds (McDowell et al., 1996) adapted to the tropical environment. The objective of this study was to evaluate the productivity of Sahiwal and Friesian-Sahiwal crossbreds.

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Identifying Features And Predicting Consumer Helpfulness Of Product Reviews, Triston Hudgins, Shijo Joseph, Douglas Yip, Gaston Besanson Apr 2023

Identifying Features And Predicting Consumer Helpfulness Of Product Reviews, Triston Hudgins, Shijo Joseph, Douglas Yip, Gaston Besanson

SMU Data Science Review

Major corporations utilize data from online platforms to make user product or service recommendations. Companies like Netflix, Amazon, Yelp, and Spotify rely on purchasing trends, user reviews, and helpfulness votes to make content recommendations. This strategy can increase user engagement on a company's platform. However, misleading and/or spam reviews significantly hinder the success of these recommendation strategies. The rise of social media has made it increasingly difficult to distinguish between authentic content and advertising, leading to a burst of deceptive reviews across the marketplace. The helpfulness of the review is subjective to a voting system. As such, this study aims …

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Bridging The Chasm Between Fundamental, Momentum, And Quantitative Investing, Allen Hoskins, Jeff Reed, Robert Slater Apr 2023

Bridging The Chasm Between Fundamental, Momentum, And Quantitative Investing, Allen Hoskins, Jeff Reed, Robert Slater

SMU Data Science Review

A chasm exists between the active public equity investment management industry's fundamental, momentum, and quantitative styles. In this study, the researchers explore ways to bridge this gap by leveraging domain knowledge, fundamental analysis, momentum, crowdsourcing, and data science methods. This research also seeks to test the developed tools and strategies during the volatile time period of 2020 and 2021.

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Question Answering With Distilled Bert Models: A Case Study For Biomedical Data, Brittany Lewandowski, Rayon Morris, Pearly Merin Paul, Robert Slater Apr 2023

Question Answering With Distilled Bert Models: A Case Study For Biomedical Data, Brittany Lewandowski, Rayon Morris, Pearly Merin Paul, Robert Slater

SMU Data Science Review

In the healthcare industry today, 80% of data is unstructured (Razzak et al., 2019). The challenge this imposes on healthcare providers is that they rely on unstructured data to inform their decision-making. Although Electronic Health Records (EHRs) exist to integrate patient data, healthcare providers are still challenged with searching for information and answers contained within unstructured data. Prior NLP and Deep Learning research has shown that these methods can improve information extraction on unstructured medical documents. This research expands upon those studies by developing a Question Answering system using distilled BERT models. Healthcare providers can use this system on their …

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Comparison Of Sampling Methods For Predicting Wine Quality Based On Physicochemical Properties, Robert Burigo, Scott Frazier, Eli Kravez, Nibhrat Lohia Apr 2023

Comparison Of Sampling Methods For Predicting Wine Quality Based On Physicochemical Properties, Robert Burigo, Scott Frazier, Eli Kravez, Nibhrat Lohia

SMU Data Science Review

Using the physicochemical properties of wine to predict quality has been done in numerous studies. Given the nature of these properties, the data is inherently skewed. Previous works have focused on handful of sampling techniques to balance the data. This research compares multiple sampling techniques in predicting the target with limited data. For this purpose, an ensemble model is used to evaluate the different techniques. There was no evidence found in this research to conclude that there are specific oversampling methods that improve random forest classifier for a multi-class problem.

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Following The Crowd: Beginners Investors Guide To The Options Market, Jeremy Dawkins, Alexy Morris, Jacob Gipson, Masoud Valizadeh Apr 2023

Following The Crowd: Beginners Investors Guide To The Options Market, Jeremy Dawkins, Alexy Morris, Jacob Gipson, Masoud Valizadeh

SMU Data Science Review

While the options market may be intimidating for a beginner, having the right tools can help improve the outcome of their investments. This project aims to develop a tool that uses time-series analysis and forecasting to model the future demand of S&P 500 and AAPL options contracts. The open interest of these contracts will be analyzed using various models such as AR, ARIMA, Neural Networks, and VAR, along with the put-call ratio. The goal is not to make buy or sell recommendations, but alert the user when money is flowing into a security or index. Of all the models, the …

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The Role Of Machine Learning In Improved Functionality Of Lower Limb Prostheses, Joaquin Dominguez, Richard Kim, Robert Slater Apr 2023

The Role Of Machine Learning In Improved Functionality Of Lower Limb Prostheses, Joaquin Dominguez, Richard Kim, Robert Slater

SMU Data Science Review

Lower-limb amputations can cause a plethora of obstacles that lead to a lower quality of life. Implementing machine learning techniques means advanced prosthetics can contribute to facilitating the lives of those that live with lower-limb amputations. Using the publicly available HuGaDB data set, the current study investigates several classification models (random forest, neural network, and Vowpal Wabbit) to predict the locomotive intentions of individuals using lower-limb prostheses. The results of this study show that the neural network model yielded the highest accuracy, comparable precision, and recall scores to the other models. However, the Vowpal Wabbit model's advantage in speed may …

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Using Nlp To Model U.S. Supreme Court Cases, Katherine Lockard, Robert Slater, Brandon Sucrese Apr 2023

Using Nlp To Model U.S. Supreme Court Cases, Katherine Lockard, Robert Slater, Brandon Sucrese

SMU Data Science Review

The advantages of employing text analysis to uncover policy positions, generate legal predictions, and inform or evaluate reform practices are multifold. Given the far-reaching effects of legislation at all levels of society these insights and their continued improvement are impactful. This research explores the use of natural language processing (NLP) and machine learning to predictively model U.S. Supreme Court case outcomes based on textual case facts. The final model achieved an F1-score of .324 and an AUC of .68. This suggests that the model can distinguish between the two target classes; however, further research is needed before machine learning models …

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Content-Based Unsupervised Fake News Detection On Ukraine-Russia War, Yucheol Shin, Yvan Sojdehei, Limin Zheng, Brad Blanchard Apr 2023

Content-Based Unsupervised Fake News Detection On Ukraine-Russia War, Yucheol Shin, Yvan Sojdehei, Limin Zheng, Brad Blanchard

SMU Data Science Review

The Ukrainian-Russian war has garnered significant attention worldwide, with fake news obstructing the formation of public opinion and disseminating false information. This scholarly paper explores the use of unsupervised learning methods and the Bidirectional Encoder Representations from Transformers (BERT) to detect fake news in news articles from various sources. BERT topic modeling is applied to cluster news articles by their respective topics, followed by summarization to measure the similarity scores. The hypothesis posits that topics with larger variances are more likely to contain fake news. The proposed method was evaluated using a dataset of approximately 1000 labeled news articles related …

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Professor Text: University Fundraising Optimization, Braden Anderson, Connor Dobbs, Hien Lam, John Santerre Apr 2023

Professor Text: University Fundraising Optimization, Braden Anderson, Connor Dobbs, Hien Lam, John Santerre

SMU Data Science Review

University fundraising campaigns are a unique type of cause-related marketing with its own challenges and opportunities. Campaigns like this typically last an extended period, such as five or more years, and goals exist beyond the dollar amount raised. These supplemental goals, such as awareness among potential future donators or brand reputation within the local community, are important to consider and strategize. There can also be unique limitations, such as requiring advertising specifically on recent large gifts or endowment programs. This research explores how machine learning techniques such as natural language processing can be used to optimize a fundraising campaign strategy, …

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Extending The M3-Competition: Category And Interval-Specific Time Series Forecasting, Will Sherman, Kati Schuerger, Randy Kim, Bivin Sadler Apr 2023

Extending The M3-Competition: Category And Interval-Specific Time Series Forecasting, Will Sherman, Kati Schuerger, Randy Kim, Bivin Sadler

SMU Data Science Review

The M3-Competition found that simple models outperform more complex ones for time series forecasting. As part of these competitions, several claims were made that statistical models exceeded machine learning (ML) techniques, such as recurrent neural networks (RNN), in prediction performance. These findings may over-generalize the capabilities of statistical models since the analysis measured the total forecasting accuracy across a wide range of industries and fields and with different interval lengths. This investigation aimed to assess how statistical and ML methods compared when individuating series by category and time interval. Utilizing the M3 data and building individual models using Facebook© Prophet …

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The Effects Of A High Grass Input Feeding System Compared To High Concentrate Input Feeding System Offered To Spring Calving Dairy Cows In Early Lactation, E. Kennedy, M. O'Donovan, J. P. Murphy, F. P. O'Mara, L. Delaby Apr 2023

The Effects Of A High Grass Input Feeding System Compared To High Concentrate Input Feeding System Offered To Spring Calving Dairy Cows In Early Lactation, E. Kennedy, M. O'Donovan, J. P. Murphy, F. P. O'Mara, L. Delaby

IGC Proceedings (1977-2023)

Grazed grass is the cheapest feed available on Irish dairy farms. The inclusion of grass in the diet of the spring-calving dairy cow in early lactation is recommended. Previous studies focused on introducing grazed herbage into the cows diet in early spring in conjunction with grass silage and concentrate, and compared this to cows fed indoors. The objective of this study was to compare the milk production and feed budget of two contrasting early lactation feeding regimes. One regime was based on a high herbage inclusion with a low concentrate level (HG), while the other was based on a high …

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