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2023

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Articles 901 - 930 of 1788

Full-Text Articles in Agronomy and Crop Sciences

Chemical Composition And Gas Production Of Pasture Dominated By Artemisia Frigida And Carex Duriscula Species, G. Udval Jun 2023

Chemical Composition And Gas Production Of Pasture Dominated By Artemisia Frigida And Carex Duriscula Species, G. Udval

IGC Proceedings (1977-2023)

In vitro gas production from a feed sample incubated with a rumen fluid inoculum has been successfully used by Menke et al. (1979) and Steingass & Menke (1986) to predict the nutritive value of the substrate fermented. Recently, the gas test has been adapted so that the increase in gas production at a series of chosen time intervals is read off. The aim of this study was to describe the kinetics of fermentation of the feed incubated with reference to OMD, DMD, metabolisable energy (ME), neutral and acid detergent fiber (NDF, ADF), cellulose and lignin contents. Samples were harvested …

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Seasonal Variation Of Crude Protein Content Of Different Herbaceous, Shrub And Tree Species, M. R. Mosquera-Losada, E. Fernández-Núñez, A. Rigueiro-Rodríguez Jun 2023

Seasonal Variation Of Crude Protein Content Of Different Herbaceous, Shrub And Tree Species, M. R. Mosquera-Losada, E. Fernández-Núñez, A. Rigueiro-Rodríguez

IGC Proceedings (1977-2023)

Silvopastoralism is a sustainable way of land management that reduces fire risk due to the reduction of fuel under trees when plants are used as animal food. This is particularly important in areas like Galicia that have 16% of the fired area of Europe. Silvopastoral systems can contribute to environment conservation and provide feed for autochthonous breeds more adapted to mountain conditions, enhancing biodiversity conservation. In formation on seasonal changes in crude protein content of spontaneous species will indicate better management of pasture resources in mountain areas.

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Nutrient Accumulation In Leaves And Soft Twigs Of Moringa Oleifera Lam. At Different Growth Stages In Western Highland Of Cameroon, E. Tedonkeng Pamo, B. Boukila, J. R. Kana, F. Tendonkeng, L. B. Tonfack, M. C. Solefack Momo Jun 2023

Nutrient Accumulation In Leaves And Soft Twigs Of Moringa Oleifera Lam. At Different Growth Stages In Western Highland Of Cameroon, E. Tedonkeng Pamo, B. Boukila, J. R. Kana, F. Tendonkeng, L. B. Tonfack, M. C. Solefack Momo

IGC Proceedings (1977-2023)

Moringa oleifera belongs to the Moringaceae family and is considered to have its origin in the south of the Himalayan mountains. The species is being introduced into the highland zone of Cameroon. It is a tree which has many valuable properties and it is of great nutritional and scientific interest. The objective of this experiment was to evaluate nutrient composition in leaves and soft twigs of M. oleifera at different growth heights when grown in the Western Highland of Cameroon.

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Evaluation Of Superoxide Anion Radical Scavenging Activities Of Plantains And Pastures By Electron Spin Resonance (Esr), Y. Tamura, T. Masumizu Jun 2023

Evaluation Of Superoxide Anion Radical Scavenging Activities Of Plantains And Pastures By Electron Spin Resonance (Esr), Y. Tamura, T. Masumizu

IGC Proceedings (1977-2023)

Producing animals without using feed-grade antibiotic growth promoters and chemical medicines is essential. In response, many scientists are now studying medicinal plants and herbs to identify and quantify those plants that may have a beneficial effect on animal production. Plantains have been used in herbal medicines and are being evaluated as a potential pasture species because of their medicinal values in animal health. In this study, antioxidant activities of plantains were compared to those of common pasture species to clarify the effects of plantains on animal health and production.

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Characterisation Of Herbage From Temperate Organic Pastures, E. Kuusela Jun 2023

Characterisation Of Herbage From Temperate Organic Pastures, E. Kuusela

IGC Proceedings (1977-2023)

Grazing is an essential part of organic dairy farming systems. Although the nutritive value of herbage and herbage availability determine the intake and nutrient supply for grazing cows, the composition of typical herbage from organic pastures has been unclear.

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Water-Soluble Carbohydrate (Wsc) Concentrations In Ireland And Norway Of Lolium Perenne Differing In Wsc Genotype And Receiving Varying Rates Of N Fertiliser, P. O'Kiely, L. Nesheim, P. Conaghan, F. P. O'Mara Jun 2023

Water-Soluble Carbohydrate (Wsc) Concentrations In Ireland And Norway Of Lolium Perenne Differing In Wsc Genotype And Receiving Varying Rates Of N Fertiliser, P. O'Kiely, L. Nesheim, P. Conaghan, F. P. O'Mara

IGC Proceedings (1977-2023)

Cultivars bred for elevated water-soluble carbohydrate (WSC) concentration may have improved grass ensilability and nutritive value. Increasing rates of application of N fertiliser generally reduce grass WSC concentration, although it is unknown if the response is similar for normal and elevated WSC genotypes or if these factors interact with growing conditions. This experiment evaluated the effects on grass WSC concentration of varying N fertiliser application rates to perennial ryegrass cultivars of high or normal WSC genotype grown in Ireland and Norway.

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Proanthocyanidins From Hedysarum, Lotus And Onobrychis Spp. Growing In Sardinia And Sicily And Their Antioxidant Activity, A. Tava, M. G. De Begedetto, D. Tedesco, G. Di Miceli, G. Piluzza Jun 2023

Proanthocyanidins From Hedysarum, Lotus And Onobrychis Spp. Growing In Sardinia And Sicily And Their Antioxidant Activity, A. Tava, M. G. De Begedetto, D. Tedesco, G. Di Miceli, G. Piluzza

IGC Proceedings (1977-2023)

Proanthocyanidins (PA), or condensed tannins, are a class of natural polyphenolic compounds, occurring in numerous plant species, including a number of economically significant forage legumes. These compounds are polymers of flavan-3-ols, and typically contain from 2 to 20 units. Their biological significance is still being debated and, in recent years, a great deal of attention has been focused on their role in ruminant nutrition. Evidence has indicated that PA, in a moderate concentration (0.5-5% DM), may have considerable importance in protecting dietary proteins against microbial degradation in the rumen, and in preventing bloat. The antioxidant activity (AA) is also an …

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Changes In Crude Protein Content With Advancing Maturity In Lucerne, S. Katić, D. Milić, V. Mihailović, A. Mikić, S. Vasiljević Jun 2023

Changes In Crude Protein Content With Advancing Maturity In Lucerne, S. Katić, D. Milić, V. Mihailović, A. Mikić, S. Vasiljević

IGC Proceedings (1977-2023)

The main determinants of the quality of lucerne forage are digestibility and protein content (Julier et al., 2001) as well as crude fibre content. In the early vegetative phases, the crude protein content of the leaves and stems is the highest and crude fibre content the lowest (Katic et al., 2003). The aim of this study was to determine the rate of change in crude protein levels at different stages of growth and development.

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Effect Of Cutting Date On Quality Of Red Clover Forage, S. Vasiljevic, S. Katic, V. Mihailovic, B. Cupina, D. Milic, A. Mikic, Dj. Karagic, I. Pataki Jun 2023

Effect Of Cutting Date On Quality Of Red Clover Forage, S. Vasiljevic, S. Katic, V. Mihailovic, B. Cupina, D. Milic, A. Mikic, Dj. Karagic, I. Pataki

IGC Proceedings (1977-2023)

Development stage or plant age is an important factor determining the chemical composition and quality of red clover forage (Ignjatovic et al., 2001). In early spring, young red clover plants have large leaf mass, high contents of moisture, protein and minerals and a low fibre content. In the course of the growing season, under the effects of long days and high temperatures, the plant undergoes morphological changes: leaves grow more slowly, the stem elongates, dry matter yield increases and quality drops, especially digestibility and the contents of protein and minerals.

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Dryland Clovers: A Phytochemical Resource, Lucy P. Meagher, G. A. Lane, W. Rumball, M. A. Tavendale, R. J. Lucas Jun 2023

Dryland Clovers: A Phytochemical Resource, Lucy P. Meagher, G. A. Lane, W. Rumball, M. A. Tavendale, R. J. Lucas

IGC Proceedings (1977-2023)

Recent developments in the utilisation of phytoestrogens of red clover (Wuttke et al., 2002) have encouraged us to investigate a wider range of Trifolium species for metabolites which could provide new product opportunities. The phytochemistry of the agronomically-important Trifolium species white (Trifolium repens) and red (T. pratense) clovers has been investigated in some detail (Foo et al., 2000; Sivakumaran et al., 2004). However numerous other clover species have been neglected in agriculture due to agronomic issues or the fact they are annuals and require more intensive management. While some of these clover species …

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Predicting Intake From Indigestible Fibre, Kenneth J. Moore, J. R. Russell Jun 2023

Predicting Intake From Indigestible Fibre, Kenneth J. Moore, J. R. Russell

IGC Proceedings (1977-2023)

Dry matter intake (DMI) of forages is often estimated as a reciprocal function of fibre concentration: DMI = fibre intake capacity / dietary fibre concentration (Mertens, 1987). This theoretical relationship is based on the concept that consumption of forage diets is limited by fill and that fibre represents the bulk of forage diets. This model, however, does not account for differences in DMI which should occur among forages with similar fibre concentrations but differing fibre digestibility. To account for these differences, we proposed an intake model where DMI is a reciprocal function of indigestible fibre concentration: DMI = c / …

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Differences Of Energy Density From Plant Species Found In Permanent Grassland Using The Cellulase Method In Comparison To The Crude Nutrient Method, Renate Bockholt, K. Friedel, F. Buske Jun 2023

Differences Of Energy Density From Plant Species Found In Permanent Grassland Using The Cellulase Method In Comparison To The Crude Nutrient Method, Renate Bockholt, K. Friedel, F. Buske

IGC Proceedings (1977-2023)

If no special instructions have been given, the metabolic energy (MJ/kg DM) and the energy density (MJ NEL/kg DM) of grass samples are calculated by the agricultural test institute using a standard valuation formula as regards crude nutrients, crude fiber content, crude protein contents and crude ash. On the other hand, it is well known from feeding tests that permanent grassland grasses and herbs, which may be dominant under semi-intensive or extensive management, can have low digestibility and low energy density.

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Are Leaf Traits Suitable For Assessing The Feeding Value Of Native Grass Species?, R. Al Haj Khaled, M. Duru, P. Cruz Jun 2023

Are Leaf Traits Suitable For Assessing The Feeding Value Of Native Grass Species?, R. Al Haj Khaled, M. Duru, P. Cruz

IGC Proceedings (1977-2023)

Research on forage feeding value other than in vivo assessment can be roughly divided into three kinds of approach. The first aims to predict feeding value using a set of enzymatic or physical methods. A second approach is based on phenological stages of species. These approaches are mainly used for pure stands of improved grasses or legumes. However, for native grassland, a complex type of vegetation, a third approach, based on botanical records, has been proposed to rank grassland communities for their feeding value. The aim of this work concerns the third approach. We tested whether leaf traits (e.g. specific …

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Validation Of Faecal Nirs For Monitoring The Diet Of Confined And Grazing Goats, S. Y. Landau, T. A. Glasser, L. Dvash, Avi Perevolotsky Jun 2023

Validation Of Faecal Nirs For Monitoring The Diet Of Confined And Grazing Goats, S. Y. Landau, T. A. Glasser, L. Dvash, Avi Perevolotsky

IGC Proceedings (1977-2023)

Goats are used for brush control and ecological management of Mediterranean grazing lands. Farmers are willing to cooperate with communities but they need an easy method to evaluate the daily intake of nutrients. A calibration of the chemical attributes of goats' diets was set-up, based on faecal near infrared (NIR) spectra (Landau et al., 2004; Table 1). The accuracy of this methodology was estimated by using the standard error of cross-validation (SECV), which represents the variability in the difference between predicted and reference values when the equation is applied sequentially to subsets of data from the calibration data set. …

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Near Infrared Spectroscopy To Assess Feeding Value And Antinutritional Compounds In Legume Species, M. Odoardi, S. Colombini, G. Piluzza, M. Confalonieri Jun 2023

Near Infrared Spectroscopy To Assess Feeding Value And Antinutritional Compounds In Legume Species, M. Odoardi, S. Colombini, G. Piluzza, M. Confalonieri

IGC Proceedings (1977-2023)

There is an increasing demand for information on the quality characteristics and chemical composition of forages in order to meet the demands of dietary specifications for feeding animals. Near Infrared (NIR) spectroscopy provides a tool for rapid and non-destructive analysis in agronomic and breeding programs of a number of chemical components of forages and grains. NIR spectroscopy in particular has the advantage of being able to simultaneously evaluate the samples for a number of qualitative traits of whole plants and seeds. In two experiments here presented, NIR Spectroscopy was used to predict: i) qualitative characteristics of field pea seeds and, …

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Prediction Of The Feed Values Of Maize Silage By Near Infrared Reflectance Spectroscopy, H. S. Park, J. K. Lee, H. J. Ko, H. Y. Lee, D. Y. Kil Jun 2023

Prediction Of The Feed Values Of Maize Silage By Near Infrared Reflectance Spectroscopy, H. S. Park, J. K. Lee, H. J. Ko, H. Y. Lee, D. Y. Kil

IGC Proceedings (1977-2023)

Until recently, feed evaluation of silages in official laboratories and feed factories was based on cutting date, chemical composition and the ammonia fraction. However, in vitro techniques have been developed based on rumen fluid or commercial enzymes to replace laborious, time-consuming and expensive digestibility experiments with animals. In this study the possibility of using near infrared reflectance spectroscopy (NIRS) to predict the chemical composition and digestibility of maize silage was examined.

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Sample Preparation Method For Near Infrared Reflectance Spectroscopy To Predict Fermentation Quality Of Maize Silage, H. S. Park, J. K. Lee, M. C. Kim Jun 2023

Sample Preparation Method For Near Infrared Reflectance Spectroscopy To Predict Fermentation Quality Of Maize Silage, H. S. Park, J. K. Lee, M. C. Kim

IGC Proceedings (1977-2023)

Using NIRS directly on undried silage can increase error due to variability in sample particle size, temperature and water content (Givens et al., 1997). These problems can be overcome by grinding silages in frozen state with dry ice or liquid nitrogen, but such procedures are time-consuming and inconvenient due to cleanup required between samples and the need to thaw the sample for subsequent use. The objective of this experiment was to assess the effect of sample preparation methods on prediction of fermentation quality of maize silage, and to select an acceptable sample-preparation method for wet silage.

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Nutritive Quality Of Silages By Conventional Laboratory Methods And Near Infrared Reflectance Spectroscopy, Pilar Castro, G. Flores, A. González-Arráez, J. Castro, B. Fernández-Lorenzo Jun 2023

Nutritive Quality Of Silages By Conventional Laboratory Methods And Near Infrared Reflectance Spectroscopy, Pilar Castro, G. Flores, A. González-Arráez, J. Castro, B. Fernández-Lorenzo

IGC Proceedings (1977-2023)

Preservation of forages as silages is needed by dairy farmers in NW Spain to feed their cows during the dry (summer) and cold (winter) seasons. The objective of this work was to compare the prediction of in vivo digestibility values by conventional laboratory methods and by near infra-red reflectance spectroscopy (NIRS) for herbage and maize silages.

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Prediction Of N Fractions Of Warm-Season Grasses With Near-Infrared Reflectance Spectroscopy, S. W. Coleman, C. E. Johnson, B. A. Reiling, P. Mislevy Jun 2023

Prediction Of N Fractions Of Warm-Season Grasses With Near-Infrared Reflectance Spectroscopy, S. W. Coleman, C. E. Johnson, B. A. Reiling, P. Mislevy

IGC Proceedings (1977-2023)

Warm-season (C4), the most common forage for beef production in much of the U.S.A., although having a higher productivity than temperate forages are of a lower quality. Current feeding standards (NRC, 1996) have adapted the Cornell Net Carbohydrate and Protein System (Sniffen et al., 1992) to more accurately characterize forage quality. As these procedures are tedious, data is limited on genetic and management factors influencing quality parameters in C4 species. The objective of this research was to determine if near-infrared reflectance spectroscopy (NIRS) could be used to predict the various N fractions in three C4 …

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A Rapid Estimation Of Nitrogen Bound To Neutral Detergent Fibre In Forages By Near Infrared Reflectance Spectroscopy, Jérôme Bindelle, G. Sinnaeve, P. Dardenne, P. Leterme, A. Buldgen Jun 2023

A Rapid Estimation Of Nitrogen Bound To Neutral Detergent Fibre In Forages By Near Infrared Reflectance Spectroscopy, Jérôme Bindelle, G. Sinnaeve, P. Dardenne, P. Leterme, A. Buldgen

IGC Proceedings (1977-2023)

Near infrared reflectance spectroscopy (NIRS) is widely used as a rapid method for the evaluation of the chemical composition or the nutritive value of foodstuffs (Givens et al., 1997). The determination of the neutral detergent fibre (NDF) bound N (NDF-N), which is highly variable in forages (Shayo & Udén, 1999), is expensive. The purpose of this study was to test the use of NIRS in the prediction of NDF-N in various forages.

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Towards Truly “Global” Near Infrared Calibrations For Protein And Neutral Detergent Fibre In Dried Ground Forages, D. Undersander, P. Berzaghi, P. Dardenne, P. Flinn, N. P. Martin, C. Paul, B. N. B. Büchmann, F. Mazeris, M. Lagerholm, I. A. Cowe Jun 2023

Towards Truly “Global” Near Infrared Calibrations For Protein And Neutral Detergent Fibre In Dried Ground Forages, D. Undersander, P. Berzaghi, P. Dardenne, P. Flinn, N. P. Martin, C. Paul, B. N. B. Büchmann, F. Mazeris, M. Lagerholm, I. A. Cowe

IGC Proceedings (1977-2023)

Over the past five years, Foss and DeLaval have sponsored the activities of a group of forage analysts with the aim of developing "global" Near Infrared (NIR) calibrations for parameters that are important in ruminant nutrition. The approach adopted has been based on the amalgamation of historical databases from centres worldwide and calibrations for protein and neutral detergent fibre (NDF) in dried ground forages have been developed based on databases that currently comprise approximately 30,000 records. Protein and NDF, while not the most important parameters in ruminant nutrition, were chosen for the initial calibration development exercise because of the amount …

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Forage Quality As Related To Mineral Concentrations In Tropical Regions, L. R. Mcdowell Jun 2023

Forage Quality As Related To Mineral Concentrations In Tropical Regions, L. R. Mcdowell

IGC Proceedings (1977-2023)

Often tropical forages contain deficient or toxic concentrations of minerals for grazing livestock (McDowell, 2003). Tropical forages generally contain less of the more essential minerals than species grown in temperate regions (McDowell & Valle, 2000). Mineral elements in forages are dependent upon the interaction of a number of factors, including soil, plant species, stage of maturity, yield, pasture management and climate. The objective of this study was to determine the adequacy of minerals for ruminants in forages collected from seven tropical countries.

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Mineral Status Of Some Permanent Range Plants For Grazing Sheep In Semi-Arid Areas Of The Chaharmahal And Bakhtiari Province In Iran. 2. Trace Minerals, G. H. R. Shadnoush Jun 2023

Mineral Status Of Some Permanent Range Plants For Grazing Sheep In Semi-Arid Areas Of The Chaharmahal And Bakhtiari Province In Iran. 2. Trace Minerals, G. H. R. Shadnoush

IGC Proceedings (1977-2023)

The principal factors limiting the performance of grazing animals are low protein content of grasses, low energy intake due to high fibre content and mineral deficiencies or imbalances (McDowell, 1985). At least 26 mineral elements are required by at least one animal species (Church et al., 1988). These elements are generally required in small amounts. They have a great deal of importance for body tissue growth as well as for physiological functions. Mineral deficiencies and imbalances have been reported from almost all tropical regions of the world. This study was designed to measure the copper, iron, manganese and zinc …

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Mineral Status Of Some Permanent Range Plants For Grazing Sheep In Semi-Arid Areas Of The Chaharmahal And Bakhtiari Province In Iran. 1. Some Macro Minerals, G. H. R. Shadnoush Jun 2023

Mineral Status Of Some Permanent Range Plants For Grazing Sheep In Semi-Arid Areas Of The Chaharmahal And Bakhtiari Province In Iran. 1. Some Macro Minerals, G. H. R. Shadnoush

IGC Proceedings (1977-2023)

A deficiency of one or more of the essential minerals in animals can lead not only to a decrease in productivity but also to metabolic diseases in case of severe deficiencies (McDowell, 1985). In general, mineral, especially phosphorous, deficiencies and imbalances are reported from almost all tropical regions of the world (Matijovic & Durackova, 1994). This study was designed to measure the calcium, phosphorous, magnesium, potassium, sodium and chlorine contents of some plant species in the semi-arid rangeland of Chaharmahal & Bakhtiari Province in Iran, because little information is available at present.

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The Effect Of Two Magnesium Fertilisers, Kieserite And Mgo, On Herbage Mg Content, M. B. O'Connor, A. H. C. Roberts, R. Haerdter Jun 2023

The Effect Of Two Magnesium Fertilisers, Kieserite And Mgo, On Herbage Mg Content, M. B. O'Connor, A. H. C. Roberts, R. Haerdter

IGC Proceedings (1977-2023)

Supplementing Mg to dairy cows is widely practised in New Zealand. Various methods are used including drenching, pasture dusting, water trough treatment and adding to hay, silage and other feedstuffs (Young et al., 1979). Fertiliser Mg (calcined magnesite, MgO) is widely used to maintain soil Mg status but research has shown that using fertiliser Mg to achieve good soil, pasture and animal Mg status requires large inputs of Mg (120 kg/ha) and maintaining blood serum Mg status in dairy cows tends to be short-lived without further animal supplementation (O'Connor et al., 1987). The objective of these experiments was …

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Potassium Content And The Balance Between Potassium And Other Minerals And Crude Protein In Forage Can Have A Big Impact On Dairy Cow Health, Hary Eriksson Jun 2023

Potassium Content And The Balance Between Potassium And Other Minerals And Crude Protein In Forage Can Have A Big Impact On Dairy Cow Health, Hary Eriksson

IGC Proceedings (1977-2023)

Preliminary studies indicated that the mineral balance in forage may affect dairy cow health. A bigger study covering the four most northern counties in northern Sweden was conducted. The objective of this study was to compare data on harvested forage with farm data on milk yield and animal health.

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Distribution Of Trace Elements In Plant Parts Of Red Clover (Trifolium Pratense L.), S. Ignjatovic, Z. Lugic, D. Sokolovic, J. Radovic Jun 2023

Distribution Of Trace Elements In Plant Parts Of Red Clover (Trifolium Pratense L.), S. Ignjatovic, Z. Lugic, D. Sokolovic, J. Radovic

IGC Proceedings (1977-2023)

There is little information on the distribution of minerals in plant parts although factors affecting mineral content in forages have been well investigated (Fleming, 1973; Whitehead et al., 1985). The aim of this investigation was to determine the trace mineral content in plant parts of different cultivars of red clover (foreign and domestic) and to assess differences between cultivars. The existence of significant differences between cultivars would indicate the possibility of selecting cultivars to satisfy particular animal requirements for minerals.

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Use Of Green Sulla Forage For Feeding. 2. Effects On Lamb Carcass And Meat Quality, A. Bonanno, M. L. Alicata, G. Tornambè, F. Mazza, G. Di Miceli, D. Giambalvo Jun 2023

Use Of Green Sulla Forage For Feeding. 2. Effects On Lamb Carcass And Meat Quality, A. Bonanno, M. L. Alicata, G. Tornambè, F. Mazza, G. Di Miceli, D. Giambalvo

IGC Proceedings (1977-2023)

Diets with 2.5% of condensed tannins (CT) from carob pulp have been showed to reduce lamb carcass weight, yield and fatness, as a consequence of lower digestibility due to strong protein-tannin bonds. Moreover the diets lightened meat colour and negatively affected meat sensory properties (Priolo et al., 2000). There is evidence that some tannin-rich legumes have weaker stability of the protein-tannin complex post-rumen (McSweeney et al., 2001). Since the CT-containing sulla (Hedysarum coronarium L.) demonstrated improved lamb growth performance in comparison with CT-lacking annual ryegrass (Lolium multiflorum Lam. subsp. wersterwoldicum) (Giambalvo et al., 2005), …

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Use Of Green Sulla Forage For Feeding. 1. Effects On Lamb Growth And Gastrointestinal Nematode Parasite Infestation, D. Giambalvo, A. Di Grigoli, M. L. Alicata, B. Formoso, A. S. Frenda, P. Trapani Jun 2023

Use Of Green Sulla Forage For Feeding. 1. Effects On Lamb Growth And Gastrointestinal Nematode Parasite Infestation, D. Giambalvo, A. Di Grigoli, M. L. Alicata, B. Formoso, A. S. Frenda, P. Trapani

IGC Proceedings (1977-2023)

Recent studies have shown that some forage legumes containing condensed tannins (CT), such as sulla (Hedysarum coronarium L.), can reduce the gastrointestinal nematode burden in sheep (Niezen et al., 1998) and increase post-ruminal protein availability (Waghorn et al., 1994). This study aimed to evaluate the anthelmintic and nutritional properties of sulla forage in relation to its CT content. Thus, the growth performance and the level of nematode infestation of lambs fed sulla were compared with those of lambs fed ryegrass (Lolium multiflorum Lam. subsp. wersterwoldicum), lacking in CT.

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Leaf, Pod And Whole Plant Tannin Contents In Pigeon Pea (Cajanus Cajan (L.) Millsp), Rodolfo Godoy, P. M. Santos, Francisco H. D. Souza Jun 2023

Leaf, Pod And Whole Plant Tannin Contents In Pigeon Pea (Cajanus Cajan (L.) Millsp), Rodolfo Godoy, P. M. Santos, Francisco H. D. Souza

IGC Proceedings (1977-2023)

Tannin content is an important characteristic of leguminous crops and it has been used as a selection criterion in pigeon-pea improvement programmes (Godoy et al., 1994). In south-eastern Brazil, pigeon pea is often consumed by bovines in the dry season (from April though October), after flowering occurs, and is recommended in some cases, specifically for that time of the year (Lourenço et al., 1994). Since tannin content is being used as a selection criterion and the animals in the dry season preferentially eat pods and leaves, an experiment was conducted to compare whole plant, leaf and pod tannin …

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