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Letteratura scientifica selezionata sul tema "Ruminants Feeding and feeds Evaluation"

Autore: Grafiati

Pubblicato: 4 giugno 2021

Ultima modifica: 28 gennaio 2023

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Articoli di riviste sul tema "Ruminants Feeding and feeds Evaluation"

Sun, Xuezhao, David Pacheco, Grant Taylor, Peter H. Janssen, and Natasha M. Swainson. "Evaluation of Feed Near-Infrared Reflectance Spectra as Predictors of Methane Emissions from Ruminants." Animals 12, no. 18 (September 19, 2022): 2478. http://dx.doi.org/10.3390/ani12182478.

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Feed chemical composition is associated with methane (CH4) formation in the rumen, and thus CH4 yields (Ym; CH4 emitted from per unit of dry matter intake) could be predicted using near-infrared reflectance spectroscopy (NIRS) of feeds fed to ruminants. Two databases of NIRS data were compiled from feeds used in experiments in which CH4 yields had been quantified in respiration chambers. Each record in the databases represented a batch of feed offered to a group of experimental animals and the mean CH4 yield for the group. A near-infrared reflectance spectrum was obtained from each feed, and t

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Marcos, Carlos N., Trinidad de Evan, Eduarda Molina-Alcaide, Margarita Novoa-Garrido, Martin Riis Weisbjerg, and María Dolores Carro. "Preserving Saccharina latissima and Porphyra umbilicalis in Multinutrient Blocks: An In Vitro Evaluation." Agriculture 13, no. 2 (January 21, 2023): 263. http://dx.doi.org/10.3390/agriculture13020263.

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Seaweeds could be alternative feedstuffs for ruminants, but their utilization in practical feeding is difficult because they deteriorate rapidly. We investigated the possibility of preserving Saccharina latissima and Porphyra umbilicalis in multinutrient blocks (MB), which is a cost-effective preservation method for high-moisture feeds. Three different MB were prepared: without seaweed (control; CMB), with 25% of fresh S. latissima (SLMB), and with 36% of fresh P. umbilicalis (PUMB). Both seaweeds and MB were fermented in vitro with ruminal fluid from sheep. The nitrogen and fiber content of P

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Wang, Lin, Miao Lin, Yuwei Yang, Dalin Liu, and Guoqi Zhao. "PSVII-13 Evaluation of Ginkgo Leaf as a Feed for Ruminants by Using in Vitro gas Production Technique." Journal of Animal Science 100, Supplement_3 (September 21, 2022): 385–86. http://dx.doi.org/10.1093/jas/skac247.704.

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Abstract The objective of this study was to examine the fermentation characteristics of ginkgo leaf compared with traditional feeds, rice straw, alfalfa and soybean meal, by using in vitro gas production technique. Three ruminal cannulated Chinese Holstein dairy cows were fed a total mixed ration. Rumen fluid was collected via from a ruminal cannula before feeding and then filtered through four layers of cheesecloth. Samples (220 mg air-dried) of rice straw, alfalfa, soybean meal and ginkgo leaf were placed in each glass bottle (150 mL), and 30 mL mixed solution with rumen fluid and a buffer s

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Yanuartono, Yanuartono, Soedarmanto Indarjulianto, Alfarisa Nururrozi, Hary Purnamaningsih, and Slamet Raharjo. "Urea Molasses Multinutrien Blok Sebagai Pakan Tambahan pada Ternak Ruminansia (UREA MOLASSES MULTINUTRIENT BLOCK AS A FEED SUPPLEMENT TO CATTLE)." Jurnal Veteriner 20, no. 3 (November 27, 2019): 445. http://dx.doi.org/10.19087/jveteriner.2019.20.3.445.

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The poor quality crop residues constitute the bulk of dry matter consumed by the ruminants. Like in most developing countries, including in Indonesia, feed shortage is the main constraint to their productivity. During the hot and dry seasons, the available feed resources are not enough in energy and digestion proteins, which are insufficient to maintenance requirements and reducing productivity throughout the year. The use of conventional feedstuffs such as rice brand, pollard, soybean cake, and groundnut cake to enhance production has become inappropriate. These supplements are in short suppl

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Torres-Fajardo, Rafael Arturo, Pedro Geraldo González-Pech, Juan Felipe de Jesús Torres-Acosta, and Carlos Alfredo Sandoval-Castro. "Nutraceutical Potential of the Low Deciduous Forest to Improve Small Ruminant Nutrition and Health: A Systematic Review." Agronomy 11, no. 7 (July 13, 2021): 1403. http://dx.doi.org/10.3390/agronomy11071403.

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Nutraceuticals are defined as livestock feeds that combine their nutritional value with their beneficial effects on animal health. We analyzed the outcomes from nearly 20 years of research assessing the nutraceutical properties of plants consumed by sheep and goats in low deciduous forests. A systematic review of different databases suggested 31 peer-reviewed manuscripts according to pre-established criteria. Amongst these, 16 manuscripts described in vitro evaluations investigating the bioactivity of plant secondary compounds in the extracts of 12 plant species. Most of these studies used the

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Tolkamp, B. J., and J. J. M. H. Ketelaars. "The effect of ad lib feeding on the efficiency of energy utilization in growing and lactating cattle." Proceedings of the British Society of Animal Production (1972) 1993 (March 1993): 55. http://dx.doi.org/10.1017/s0308229600023825.

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Recently, we have proposed a new theory of feed intake regulation in ruminants (Ketelaars and Tolkamp, 1992a,b; Tolkamp and Ketelaars, 1992). This theory attributes great significance to the efficiency of metabolizable energy (ME) utilization for feed intake regulation. In brief, we assume that feed intake behaviour of ruminants aims at maximizing the ratio of net energy intake (representing the benefits of feeding) relative to oxygen consumption (representing the metabolic costs of feeding). Starting from this assumption, we have shown that knowledge of the efficiency of ME utilization obtain

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Leng, RA. "Quantitative ruminant nutrition — a green science." Australian Journal of Agricultural Research 44, no. 3 (1993): 363. http://dx.doi.org/10.1071/ar9930363.

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Knowledge of quantitative digestion and metabolism in ruminants was developed most rapidly when isotope dilution techniques became easy to apply, facilitated by improved instrumentation and mathematical approaches. The Armidale group led by Professor E. F. Annison and Dr D. B. Lindsay were at the forefront of these developments in the late 1950's. Since then knowledge in this area has developed at an ever increasing rate. The data that accumulated from the quantitative approach led to simple or complex models of animal digestion, metabolism and growth. These in turn led to much questioning of

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Pramita, Melyndra Sonya, and Hendrawan Soetanto. "The potential of frozen rumen fluid for ruminant feed evaluation using in vitro gas production technique." E3S Web of Conferences 335 (2022): 00053. http://dx.doi.org/10.1051/e3sconf/202233500053.

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The aim of this study was to determine the potential of frozen rumen fluid (RF) for ruminant feed evaluation using in vitro gas production (IVGP) technique. This study used a factorial randomized block design with a 3 × 3 × 3 pattern, consisting three feeding regimes varying in forage to concentrate proportion, namely 20%:80% (feed A), 40%:60% (feed B), and 60%:40% (feed C), respectively; three storage time (2, 11, and 19 days); and RF from 3 breeds of indigenous cattle, namely Bali, crossbred Ongole and Madura cattle as groups. The results showed that the effects of feeding regimes, inoculum

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Cone, J. W., and A. H. van Gelder. "Estimation of efficiency of microbial growth in rumen fluid with the gas production technique." Proceedings of the British Society of Animal Science 1999 (1999): 39. http://dx.doi.org/10.1017/s1752756200001940.

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In the Dutch feed evaluation system for ruminants, it is assumed that each 1000 g of rumen fermented organic matter (FOM) produces 150 g of microbial protein. However, this is a simplification of the real in vivo processes. Demeyer and Van Nevel (1986) concluded that the efficiency of microbial growth depends on several factors, such as chemical and physical properties and intake. They concluded that feeding low quality roughage would show lowest efficiency and feeding highly degradable starch would show highest efficiency. We investigated the possibilities to estimate differences in efficienc

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Tahir, M. N., Z. Khan, S. Ahmad, M. Z. Ihsan, M. H. Lashari, and M. A. Khan. "In situ dry matter, protein and neutral detergent fibre degradation kinetics of Cholistan Desert grasses." South African Journal of Animal Science 50, no. 2 (July 1, 2020): 334–44. http://dx.doi.org/10.4314/sajas.v50i2.17.

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Global climate change is evident and poses serious threats to the sustainability of traditional rangeland livestock production systems. This study tested the feeding potential of perennial grasses of Cholistan Desert for various species of ruminants at different physiological stages. Eight common and nutritionally important grass species (Cenchrus ciliaris, Stipagrostis plumose, Panicum antidotale, Cymbopogon jwarancusa, Cenchrus pennisitiformis, Lasiurus scindicus, Ochthochloa compressa and Vetiveria zizanioides) were investigated for in situ degradation parameters according to Nordic feed ev

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Tesi sul tema "Ruminants Feeding and feeds Evaluation"

Mohamed, Neijat. "Assessing the feeding value of pea straw and evaluating biological methods to improve its utilisation by ruminants." Title page, contents and abstract only, 1995. http://web4.library.adelaide.edu.au/theses/09AS/09asm697.pdf.

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Copies of the author's previously published articles inserted. Bibliography: leaves 142-159. Provides information on the significance of pea straw as a ruminant feed and the potential of two biological techniques for improving its feeding value.

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Upton, Erlanda. "Development and evaluation of polymer coated urea as a potential slow-release urea supplement for ruminants." Thesis, Stellenbosch : Stellenbosch University, 1999. http://hdl.handle.net/10019.1/51199.

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Thesis (MScAgric)--Stellenbosch University, 1999.<br>ENGLISH ABSTRACT: The rate of hydrolysis of urea in the rumen of animals is a major limitation when considering the substitution of natural protein with urea in the formulation of rations. The aim of this study was to evaluate polymer coated urea prills with variable coating thickness and evaluate its potential as a slow-release NPN compound. A new slowrelease urea compound, made by coating prilled feedgrade urea with a co-polymer of urea-formaldehyde resin and a castor-coconut alkyd was initially evaluated for urea-nitrogen concentra

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Cuthbertson, Abla Zehour. "Effect of animal type or treatment on the efficiency of lean meat production and the fatty acid composition of meat : thesis submitted for the degree of Master of Agricultural Science." Title page, summary and contents only, 1988. http://web4.library.adelaide.edu.au/theses/09A/09ac988.pdf.

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Includes bibliographical references (leaves 196-220) Studies the growth, body composition, feed intake of grazing animals, the use of anabolic agents, fatty acid composition of ruminants fats; and, the effect of saturated fat on human health.

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Mabuza, Thembisile Veronicah. "Evaluating long term effects of fire frequency on soil seed bank composition and species diversity in a semi-arid , South African savanna." Thesis, University of Fort Hare, 2011. http://hdl.handle.net/10353/346.

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Fire is generally used as a management tool for different vegetation types such as savannas and grasslands in southern Africa. In the False Thornveld of the Eastern Cape, fire is commonly used to control bush encroachment and to increase grass production, as grasses are important source of forage for domestic livestock. At the University of Fort Hare farm in the Eastern Cape, a trial was set up in 1980 to investigate the effect of burning frequency on vegetation. There are six treatments replicated twice in a completely randomized design on a 100 m x 50 m plots. The treatments comprise no burn

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Llorente, Eduardo Gallo. "Ammonia and urea treatment of wheat straw for feeding to ruminants." Thesis, Virginia Polytechnic Institute and State University, 1986. http://hdl.handle.net/10919/91048.

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The effect of treatment with 3% aqueous ammonia and 5.3% urea plus jackbean meal on the nutritive value of wheat straw was investigated. The moisture content of the straw was raised to 40% by addition of water. Crude protein and in vitro dry matter digestibility were highest for the bottom layers, which had the highest moisture. The mean temperature during the first 4 wk post treatment was 11.2 C. Four diets were fed to sheep: untreated straw 1) alone or 2) with 20 g/d urea at feeding time 3) ammonia-treated straw, and 4) urea-treated straw. All diets contained 80 g of liquid molasses, 10 g of

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Mukisira, Ephraim Amiani. "The influence of alkaloids on voluntary intake and performance by ruminants fed diets containing lupin seed in Kenya." Thesis, McGill University, 1994. http://digitool.Library.McGill.CA:80/R/?func=dbin-jump-full&object_id=41730.

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Lupin seed has the potential to be used as a protein supplement in ruminant rations, but its usage is restricted by the presence of alkaloids. Experiments were conducted with the aim of determining whether the removal of specific toxic alkaloids, lupanine and 13-hydroxylupanine, from crushed lupin seed (CLS) would improve the organic matter intake (OMI) and average daily gains (ADG) in lambs, and also improve the lactation performance in dairy cows. Effects on liver function in lambs were also investigated. An additional study on the effects of the detoxification of CLS on the degradation of p

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Ilse, Breanne Rose. "Effects of Linseed Meal on Growth and Reproductive Performance in Ruminants." Thesis, North Dakota State University, 2011. https://hdl.handle.net/10365/28744.

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Linseed meal (LSM) was fed to ovariectomized ewes exposed to estradiol 17-? (E2) implants over time, and LSM was supplemented to beef cows during late gestation and early lactation to evaluate the estrogenic potential of the phytoestrogen secoisolariciresinol diglycoside (SDG) found in LSM. Forty-eight ovariectomized ewes were fed a diet containing 12.5% LSM for 0, 1, 7, or 14 d and implanted with estradiol-17? (E2) for 0, 6, or 24 h before tissue collection. Uterine cellular proliferation, vascularity, and the expression of the angiogenic factors and their receptors were recorded.

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URIAS, ALEJANDRO RUBEN. "EFFECT OF DIETARY CONCENTRATE LEVELS ON IN SITU DRY MATTER DISAPPEARANCE, NEUTRAL DETERGENT FIBER DISAPPEARANCE AND DIGESTION KINETICS OF ALFALFA HAY, WHEAT STRAW AND STEAM PROCESSED AND FLAKED MILO GRAIN." Diss., The University of Arizona, 1986. http://hdl.handle.net/10150/183830.

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A replicated 3 x 3 latin square design (3 periods and 6 rumen fistulated steers) was utilized to investigate the effect of dietary concentrate levels (30, 60 and 90%) on the in situ disappearance of dry matter (ISDMD) and neutral detergent fiber (NDF) and kinetics of fiber digestion of alfalfa hay, wheat straw and steam processed and flaked milo (SPFM). Concentrate levels of 30 and 60% did not affect (P > .05) ISDMD or NDF disappearance from any of the substrates. However, ISDMD and NDF disappearance of all substrates were depressed (P < .05) by the 90% concentrate diet. The degradation of the

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DELFINO, FRANCIS JOSEPH. "IDENTIFICATION AND CHARACTERIZATION OF CEREAL GRAIN TISSUES RESISTANT TO RUMEN MICROBIAL DIGESTION USING IN SITU, IN VITRO AND SCANNING ELECTRON MICROSCOPY TECHNIQUES." Diss., The University of Arizona, 1986. http://hdl.handle.net/10150/183909.

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A series of studies was conducted using SEM in conjunction with chemical analysis, in situ and in vitro digestion techniques, to characterize the anatomical components from barley, corn, sorghum and wheat grains which constitute "fiber" and investigate their susceptibility to rumen microbial digestion. Fractured grains were used to identify anatomical features and cell types prior to and after extraction or digestion. Certain anatomical features, including pericarp tissue, aleurone cells, endosperm cell walls, corneous and floury endosperm tissue and lemma and palea from barley, were easily id

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Kenna, Twila M. "Gluconeogenesis in the liver of growing and lactating ruminants: the influence of ration composition and stage of lactation." Diss., Virginia Polytechnic Institute and State University, 1991. http://hdl.handle.net/10919/71147.

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Thirty six: Holstein bull calves were assigned to a 3X3 factorial design with ration physical forms of chopped hay (CH), ground hay (GR) and all concentrate (CONC) and rumen degradable nitrogen (RDN) of 30, 45 and 60%. Metabolic body weight, liver weight and blood glucose were greatest in CONC-fed calves. Neither dry matter nor ash content of liver tissue was affected by either physical form or RDN. Within physical form, protein content was highest and fat lowest in livers of CH-fed caIves. Within RDN, livers of calves feel 30% RDN rations had lowest protein and highest fat content. RDN percen

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Libri sul tema "Ruminants Feeding and feeds Evaluation"

M, Chenost, Reiniger P, European Cooperation in the Field of Scientific and Technical Research (Organization), Commission of the European Communities., and Institut national de la recherche agronomique (France), eds. Evaluation of straws in ruminant feeding. London: Elsevier Applied Science, 1989.

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C, Fahey George, American Society of Agronomy, Crop Science Society of America., and Soil Science Society of America., eds. Forage quality, evaluation, and utilization. Madison, Wis., USA: American Society of Agronomy, 1994.

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Ørskov, E. R. Energy nutrition in ruminants. London: Elsevier, 1990.

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Preston, T. R. Matching ruminant production systems with available resources in the tropics and sub-tropics. Armidale: Penambul Books, 1987.

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Müller, Z. O. Fattening of ruminants under feedlot system in Pakistan. Islamabad: Pakistan Agricultural Research Council, 1986.

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Krishnamoorthy, Uppoor. Rearing young ruminants on milk replacers and starter feeds. Rome: Food and Agriculture Organization of the United Nations, 2011.

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Ørskov, E. R. The feeding of ruminants: Principles and practice. Marlow: Chalcombe, 1987.

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The feeding of ruminants: Principles and practice. 2nd ed. Welton: Chalcombe, 1998.

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Coyle, John E. In vivo digestibility studies of ruminant feed ingredients. Dublin: University College Dublin, 1996.

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Tillman, Allen D. A guide to the feeding and nutrition of ruminants in the tropics. Morrilton, AR: Winrock International Institute for Agricultural Development, 1986.

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Capitoli di libri sul tema "Ruminants Feeding and feeds Evaluation"

"Energy value of feeds for non-ruminants." In Feeding of Non-Ruminant Livestock, 8–13. Elsevier, 1987. http://dx.doi.org/10.1016/b978-0-407-00460-3.50008-9.

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VAN DER HONING, Y., and A. STEG. "COMPARISON OF ENERGY EVALUATION SYSTEMS OF FEEDS FOR RUMINANTS." In Feedstuff Evaluation, 1–19. Elsevier, 1990. http://dx.doi.org/10.1016/b978-0-408-04971-9.50007-x.

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THOMAS, P. C. "PREDICTING THE NUTRITIVE VALUE OF COMPOUND FEEDS FOR RUMINANTS." In Feedstuff Evaluation, 301–18. Elsevier, 1990. http://dx.doi.org/10.1016/b978-0-408-04971-9.50023-8.

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Medjekal, Samir, and Mouloud Ghadbane. "Sheep Digestive Physiology and Constituents of Feeds." In Sheep Farming - An Approach to Feed, Growth and Health. IntechOpen, 2021. http://dx.doi.org/10.5772/intechopen.92054.

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Sheep have a gastrointestinal tract similar to that of other ruminants. Their stomach is made up of four digestive organs: the rumen, the reticulum, the omasum and the abomasum. The rumen plays a role in storing ingested foods, which are fermented by a complex anaerobic rumen microbiota population with different types of interactions, positive or negative, that can occur between their microbial populations. Sheep feeding is largely based on the use of natural or cultivated fodder, which is exploited in green by grazing during the growth period of the grass and in the form of fodder preserved during the winter period. Ruminant foods are essentially of plant origin, and their constituents belong to two types of structures: intracellular constituents and cell wall components. Cellular carbohydrates play a role of metabolites or energy reserves; soluble carbohydrates account for less than 10% dry matter (DM) of foods. The plant cell wall is multi-layered and consists of primary wall and secondary wall. Fundamentally, the walls are deposited at an early stage of growth. A central blade forms the common boundary layer between two adjacent cells and occupies the location of the cell plate. Most of the plant cell walls consist of polysaccharides (cellulose, hemicellulose and pectic substances) and lignin, these constituents being highly polymerized, as well as proteins and tannins.

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Moyo, Mehluli, Siyabonga T. Bhiya, Masande Katamzi, and Ignatius V. Nsahlai. "Evaluation and Prediction of the Nutritive Value of Underutilised Forages as Potential Feeds for Ruminants." In Forage Groups. IntechOpen, 2019. http://dx.doi.org/10.5772/intechopen.83643.

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Atti di convegni sul tema "Ruminants Feeding and feeds Evaluation"

Matovu, Jacob, and Ahmet Alçiçek. "Investigations and Concerns about the Fate of Transgenic DNA and Protein in Livestock." In International Students Science Congress. Izmir International Guest Student Association, 2021. http://dx.doi.org/10.52460/issc.2021.011.

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The fate of transgenic DNA (tDNA) and protein from feed derived from Genetically Modified organisms (GMOs) in animals has been a major issue since their commercialization in 1996. Several studies have investigated the risks of horizontal gene transfer (HGT) of tDNA and protein to bacteria or animal cells/tissues, but some of the reported data are controversial. Previous reports showed that tDNA fragments or proteins derived from GM plants could not be detected in tissues, fluids, or edible products from livestock. Other researchers have shown that there is a possibility of small fragments ente

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Ünlü, Elif Işılay, and Ahmet Çınar. "Lesion Detection on Skin Images Using Improved U-Net." In International Students Science Congress. Izmir International Guest Student Association, 2021. http://dx.doi.org/10.52460/issc.2021.022.

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The fate of transgenic DNA (tDNA) and protein of feeds from Genetically Modified organisms (GMOs) in animals has been an important topic since their commercialization in 1996. Several studies have investigated about risks of horizontal gene transfer (HGT) of tDNA and proteins to bacteria or animal cells/tissues, however, the reported data is at times controversial. Earlier reports showed that tDNA fragments or protein derived from GM plants have not been detected in tissues, fluids, or edible products of farm animals. Other researchers have come out to demonstrate that there is the possibility

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ISMAILOV, Ismail Sagidovich, Nina Vladimirovna TREGUBOVA, Rashid Hasanbievich KOCHKAROV, Anna Victorovna MORGUNOVA, and Natalija Alecseevna DRIZHD. "THE RELATIONSHEEP OF AMINO ACID METABOLISM WITH PRODUCTIVITY OF GROWING YOUNG SHEEP." In RURAL DEVELOPMENT. Aleksandras Stulginskis University, 2018. http://dx.doi.org/10.15544/rd.2017.125.

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A number of studies on digestion of the ruminants have shown the process of synthesis of all the essential amino acids in the rumen (Abu Fadel, 2004; Trukhachev, V., Zlidnev, N. 2008). However, according to some researches, microbial protein is deficient in methionine and lysine. This assumption also proves the need for further study of the influence of balanced amino acids to these diets on the growth, development and productive performance of the ruminants. Scientific approbation of the issues related to establishing the requirements of young sheep in lysine and methionine with cystine and d

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Zverkova, Zinaida, and Bella Osipyan. "FEATURES OF THE USE OF BRASSICA RAPA SEEDS IN THE FEEDING OF BROILER-CHICKENS." In Multifunctional adaptive fodder production. ru: Federal Williams Research Center of Forage Production and Agroecology, 2022. http://dx.doi.org/10.33814/mak-2022-28-76-191-197.

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In the Federal Scientific Center "VIK im. V. R. Williams” conducted research on the evaluation of new varieties of spring and winter colza Zarya and Nadezhda when growing broiler chickens of the Cobb 500 cross. The control group received compound feed without rapeseed seeds. The first and second experimental groups included 7.5% by weight of mixed fodder native rapeseed seeds of Zarya and Nadezhda varieties, which were used to replace part of soybean meal and sunflower oil. The content of nutrients in mixed feed complied with the regulatory requirements. The oil was balanced in composition: a

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