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Dissertations / Theses on the topic 'Digestión ruminal'

Author: Grafiati

Published: 11 September 2021

Last updated: 30 July 2025

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1

Ortiz, De Paz Emerik. "Digestión in situ de la dieta para bovinos lecheros en producción con sustitución de alfalfa (Medicago sativa) por moringa (Moringa oleifera)." Tesis de Licenciatura, Universidad Autónoma del Estado de México, 2018. http://hdl.handle.net/20.500.11799/94404.

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Tesis de licenciatura que versa su temática sobre la sustitución de alfalfa por moringa en dietas para bovinos lecheros.<br>El presente estudio fue realizado en el Centro Universitario UAEM Temascaltepec, localizado en el municipio de Temascaltepec, México; con el objetivo de evaluar el efecto del reemplazamiento parcial de Alfalfa (Medicago sativa) por Moringa (Moringa oleifera) sobre la degradabilidad de los nutrientes de una dieta para bovinos lecheros en producción. Se utilizó 1 hembra bovina raza Holstein Friesian, con edad de 7 años y peso de 470 kg, la cual estará provista de una canula

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2

Trinidad, Tinoco Emilio. "Degradabilidad ruminal y cinética de digestión de la materia seca y de la proteína de dietas para vacas lecheras con inclusión de Moringa oleifera." Tesis de Licenciatura, Universidad Autónoma del Estado de México, 2019. http://hdl.handle.net/20.500.11799/105369.

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Tesis de licenciatura, presentada como requisito parcial para obtener el Título de Ingeniero Agrónomo Zootecnista<br>El experimento se realizó en el Laboratorio de Nutrición Animal del Centro Universitario UAEM Temascaltepec. El objetivo fue evaluar el efecto sobre la degradabilidad y cinética de digestión in vitro de Moringa oleífera como sustituto de la alfalfa en dietas para bovinos productores de leche. Se realizó la técnica de producción de gas in vitro. Se utilizaron dietas integrales iso- proteicas e iso-energéticas con contenidos similares de fibra (TMR; proteína, 130 g kg-1 de MS; ene

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3

VIEIRA, Aerlem Cynnara Silva. "Características do fluido ruminal em ovinos da raça Santa Inês criados sob regime extensivo." Universidade Federal Rural de Pernambuco, 2007. http://www.tede2.ufrpe.br:8080/tede2/handle/tede2/5111.

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Submitted by (edna.saturno@ufrpe.br) on 2016-07-28T15:02:53Z No. of bitstreams: 1 Aerlen Cynnara Silva Vieira.pdf: 1049059 bytes, checksum: fecedcd3f07c710acd263f6e5d9f968c (MD5)<br>Made available in DSpace on 2016-07-28T15:02:53Z (GMT). No. of bitstreams: 1 Aerlen Cynnara Silva Vieira.pdf: 1049059 bytes, checksum: fecedcd3f07c710acd263f6e5d9f968c (MD5) Previous issue date: 2007-02-05<br>It was pretended with this research to establish standards of normality for ruminal fluid characteristics, such as color, odor, consistency, sedimentation and flotation time (SFT), pH, bacterial activity b

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4

AL, ABD ASSAAD. "Comparaison des methodes de mesure, du flux des contenus digestifs chez le ruminant : application a l'etude de la digestion de trois types de ration." Clermont-Ferrand 2, 1986. http://www.theses.fr/1986CLF21035.

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Comparaison chez le mouton des differentes methodes proposees pour l'estimation du flux des contenus digestifs a l'entree de l'intestin grele, en utilisant la canule simple et les marqueurs, et mise au point d'une methodologie complementaire de la precedente, permettant de mesurer la vitesse de passage dans le tube digestif des residus alimentaires et des liquides constituant le contenu digestif

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5

Rogers, Michaela G. "Effect of monensin supplementation on ruminal and postruminal digestion in sheep and on adaptation of ruminal microbes." Diss., Virginia Polytechnic Institute and State University, 1987. http://hdl.handle.net/10919/49879.

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Three experiments were conducted to examine the effects of an ionophore, monensin sodium, on digestion in sheep. The first experiment was concerning alterations induced by long-term supplementation and subsequent withdrawal of the ionophore. The diet was a pelleted mixture of 43% native prairie hay, 34% corn grain, and 21% lupin grain plus 100 g wheat straw. Monensin (33 ppm) was added to the diet of four wethers, and four other animals served as controls and consumed an identical diet. without monensin. Monensin supplementation increased (P <.05) ruminal propionate while decreasing (P <.05) a

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6

MIRANDA, NETO Eldinê Gomes de. "Estudo do efeito da monensina sódica na prevenção da acidose láctica ruminal induzida em caprinos." Universidade Federal Rural de Pernambuco, 2009. http://www.tede2.ufrpe.br:8080/tede2/handle/tede2/5483.

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Submitted by (edna.saturno@ufrpe.br) on 2016-08-25T12:27:20Z No. of bitstreams: 1 Eldine Gomes de Miranda Neto.pdf: 1290705 bytes, checksum: 062c53bd3fb80d1616e2537b76d08bf8 (MD5)<br>Made available in DSpace on 2016-08-25T12:27:21Z (GMT). No. of bitstreams: 1 Eldine Gomes de Miranda Neto.pdf: 1290705 bytes, checksum: 062c53bd3fb80d1616e2537b76d08bf8 (MD5) Previous issue date: 2009-02-25<br>Conselho Nacional de Pesquisa e Desenvolvimento Científico e Tecnológico - CNPq<br>Coordenação de Aperfeiçoamento de Pessoal de Nível Superior - CAPES<br>The aim of the present study was to analyze clini

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7

Trotta, Ronald. "Biological Abnormalities in the Ruminant Small Intestine and Its Relationship to Carbohydrate Assimilation." Thesis, North Dakota State University, 2019. https://hdl.handle.net/10365/31722.

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Several biological abnormalities exist between the ruminant and nonruminant small intestine and influences carbohydrate assimilation. Two experiments were conducted to identify potential mechanisms to improve carbohydrate utilization in cattle. Experiment 1 evaluated the effects of duodenal starch infusions with casein or glutamic acid on post-ruminal carbohydrase activities. Experiment 2 evaluated the effects of dietary fructose on visceral organ development and expression of nutrient transporters and digestive enzymes involved in carbohydrate assimilation. In experiment 1, the results sugges

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8

Adiwimarta, Kustantinah. "Effets sur la digestion chez le ruminant de modifications de la teneur en azote associée aux parois végétales." Vandoeuvre-les-Nancy, INPL, 1992. http://www.theses.fr/1992INPL096N.

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Sur 11 aliments étudiés, quel que soit le traitement utilise (traitement à l'alcalin, le chauffage artificiel et le chauffage naturel), induisent tous, une augmentation de la teneur en azote paroi totale non soluble dans la solution de détergent neutre (NDIN): et azote pariétale non soluble dans la solution de détergent acide (ADIN), dans la matière sèche. Cette augmentation occasionne une diminution ou maintient de la dégradabilité dans le rumen. La teneur en NDIN et en ADIN des résidus de fermentation est donc toujours plus forte pour les foins traites que le foin non traite. Cette augmentat

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9

Carneiro, Hilton Alexandre Vidal. "Determination of intake, total digestions, balance of nitrogen compounds and ruminal variables in santa ines sheep fed different levels concentrate." Universidade Federal do CearÃ, 2011. http://www.teses.ufc.br/tde_busca/arquivo.php?codArquivo=7383.

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CoordenaÃÃo de AperfeiÃoamento de Pessoal de NÃvel Superior<br>O experimento foi realizado no Departamento de Zootecnia da Universidade Federal do CearÃ com o objetivo de avaliar o efeito de quatro nÃveis de concentrado (25,0; 37,5; 50,0; 62,5 com base na MS) na raÃÃo de ovinos, sobre o consumo; as digestibilidades aparentes de matÃria seca (MS), matÃria orgÃnica (MO), proteÃna bruta (PB), extrato etÃreo (EE), fibra em detergente neutro (FDN), fibra em detergente neutro corrigida para cinzas e proteÃna (FDNcp), fibra em detergente Ãcido (FDA), carboidratos totais (CT) e carboidratos nÃo-fibros

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10

Guilloteau, Paul. "Digestion des proteines chez le jeune ruminant." Paris 6, 1986. http://www.theses.fr/1986PA066588.

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11

Hackmann, Timothy Spain James Nobles. "Studies of ruminant digestion, ecology, and evolution." Diss., Columbia, Mo. : University of Missouri--Columbia, 2008. http://hdl.handle.net/10355/5688.

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The entire thesis text is included in the research.pdf file; the official abstract appears in the short.pdf file; a non-technical public abstract appears in the public.pdf file. Title from PDF of title page (University of Missouri--Columbia, viewed on September 24, 2009). Thesis advisor: Dr. James Spain. Vita. Includes bibliographical references.

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12

Guilloteau, Paul. "Digestion des protéines chez le jeune ruminant." Grenoble 2 : ANRT, 1986. http://catalogue.bnf.fr/ark:/12148/cb37598104n.

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13

Piwonka, Edward Joseph. "Associative effects of non-structural carbohydrates on fiber digestion by Ruminal microorganisms /." The Ohio State University, 1994. http://rave.ohiolink.edu/etdc/view?acc_num=osu1487859879940817.

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14

Sommart, Kritapon. "The use of cassava in ruminant diets based on low quality roughages." Thesis, University of Newcastle Upon Tyne, 1998. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.244400.

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15

Rymer, C. "Digestion of molassed sugarbeet pulp by ruminants." Thesis, University of Newcastle Upon Tyne, 1988. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.380765.

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16

Ushida, Kazunari. "STUDIES ON PROTOZOAL CONTRIBUTION TO THE RUMINANT DIGESTION." Kyoto University, 1986. http://hdl.handle.net/2433/78033.

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17

Marchment, S. M. "The influence of protein status on voluntary intake in the ruminant." Thesis, University of Cambridge, 1985. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.354346.

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18

Schoep, Tobias Delavilla. "Isolation and characterization of Pseudobutyrivibrio ruminis gene promoters." Schoep, Tobias Delavilla (2004) Isolation and characterization of Pseudobutyrivibrio ruminis gene promoters. PhD thesis, Murdoch University, 2004. http://researchrepository.murdoch.edu.au/294/.

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A family of E. coli - P. ruminis shuttle-plasmids was constructed to allow the isolation and characterization of gene promoters from the rumen bacterium P. ruminis. The promoter rescue plasmid pBK was used to isolate a total of 4 genomic DNA fragments that promoted transcription in P. ruminis strains 0/10. These promoters, and an additional promoter, previously isolated from P. ruminis strain OR38 (Schoep, 1999), were identified by their ability to initiate expression of a promoterless ermAM gene in P. ruminis. Within 4 of the fragments, a total of 5 transcription start sites were identified i

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19

GABARRÓ, FERNÁNDEZ ADRIANA. "“INFLUENCE OF SUNFLOWER OIL AND Schizochytrium microalgae ON RUMINAL METHANE AND CARBON DIOXIDE EMISSIONS OF TOTAL MIXED RATION IN STEERS." Tesis de Licenciatura, Universidad Autónoma del Estado de México, 2017. http://hdl.handle.net/20.500.11799/67716.

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La producción ganadera contribuye con alrededor del 18% de metano (CH⁴) y el 9% de las emisiones de dióxido de carbono (CO²) de producción, que se han implicado en causar el cambio climático. El metano, CO², hidrógeno (H²) son los principales gases producidos durante la fermentación ruminal, lo que provoca una pérdida de 2 a 12% de la energía de la dieta de los rumiantes (Johnson y Johnson, 1995). Mejorar la utilización de piensos y el rendimiento animal es el principal objetivo de los nutricionistas; Sin embargo, deben considerarse las obligaciones sociales y ambientales para reducir l

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20

Morvan, Brieuc. "Ecologie et physiologie des microorganismes hydrogénotrophes des écosystèmes digestifs : étude particulière de l'écosystème ruminal." Lyon 1, 1995. http://www.theses.fr/1995LYO10241.

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L'hydrogene est un intermediaire important de la degradation microbienne anaerobie de la matiere organique. Dans les ecosystemes digestifs, l'hydrogene produit par des microorganismes hydrolytiques et fermentaires peut etre potentiellement reutilise par trois groupes microbiens majeurs: les archa methanogenes, les bacteries sulfato-reductrices et les bacteries acetogenes. Nous avons compare le niveau de population de ces hydrogenotrophes dans divers ecosystemes digestifs, caracterise quelques souches et etudie les interactions entre ces microorganismes et ceux producteurs d'h#2. Les methanogen

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21

Holtshausen, Lucia. "Effect of nonfiber carbohydrates on product yield and fiber digestion in fermentations with mixed ruminal microbes." [Gainesville, Fla.] : University of Florida, 2004. http://purl.fcla.edu/fcla/etd/UFE0008120.

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22

Abd, Assaad al. "Comparaison des méthodes de mesure du flux des contenus digestifs chez le ruminant application à l'étude de la digestion de trois types de ration." Grenoble 2 : ANRT, 1986. http://catalogue.bnf.fr/ark:/12148/cb375952700.

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23

Sveinbjörnsson, Johannes. "Substrate levels, carbohydrate degradation rate and their effects on ruminal end-product formation /." Uppsala : Department. of Animal Nutrition and Management, Swedish University of Agricultural Sciences, 2006. http://epsilon.slu.se/200626.pdf.

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24

Junior, Flavio Perna. "Efeito de aditivos alimentares sobre a produção de metano ruminal utilizando a técnica de fermentação ruminal ex situ (micro-rúmen), digestibilidade aparente total e excreção de nutrientes em bovinos." Universidade de São Paulo, 2013. http://www.teses.usp.br/teses/disponiveis/10/10135/tde-21032014-114008/.

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Problemática mundial levantada nas últimas duas décadas, a geração de gases de efeito estufa (GEE) tem parte devida à emissão de metano por ruminantes. O metano, um potente GEE, é produto final do processo fermentativo de bovinos e, por constituir perda no potencial produtivo destes, tem sido objeto de estudo por nutricionistas do mundo todo. Na busca por estratégias para diminuírem essas perdas, diferentes dietas, aditivos e manejos nutricionais têm sido empregados. Portanto, o objetivo deste trabalho foi avaliar o efeito dos aditivos alimentares, monensina ou tanino, sobre a produção de meta

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25

Keomanivong, Faithe Elizabeth. "The impact of digestive enzymes in the ruminant animal." Thesis, North Dakota State University, 2017. http://pqdtopen.proquest.com/#viewpdf?dispub=10244582.

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<p> Understanding the enzymatic activity in ruminant digestive systems is essential for securing adequate growth, reproduction and overall metabolism. In order to evaluate the impact of various nutritional sources and dietary strategies on enzymatic activity, five experiments were designed. Experiment 1 examined the influence of nutrient restriction and melatonin supplementation on maternal and fetal pancreatic development. Experiment 2 explored various phases of the reproductive cycle and the impact of intravenous arginine infusion amid differing levels of feed intake. Experiment 3 determined

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26

Keomanivong, Faithe Elizabeth. "The Impact of Digestive Enzymes in the Ruminant Animal." Diss., North Dakota State University, 2016. https://hdl.handle.net/10365/28054.

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Understanding the enzymatic activity in ruminant digestive systems is essential for securing adequate growth, reproduction and overall metabolism. In order to evaluate the impact of various nutritional sources and dietary strategies on enzymatic activity, five experiments were designed. Experiment 1 examined the influence of nutrient restriction and melatonin supplementation on maternal and fetal pancreatic development. Experiment 2 explored various phases of the reproductive cycle and the impact of intravenous arginine infusion amid differing levels of feed intake. Experiment 3 determined the

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27

Mills, Jonathan. "Mathematical modelling of starch digestion in the lactating dairy cow." Thesis, University of Reading, 2000. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.326969.

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28

Bueno, Ives Cláudio da Silva. "Cinética digestiva e síntese microbiana ruminal em ovinos alimentados com fenos de três qualidades distintas." Universidade de São Paulo, 2002. http://www.teses.usp.br/teses/disponiveis/64/64132/tde-14012003-094711/.

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O objetivo deste trabalho foi avaliar fenos de valores nutritivos distintos na nutrição de ovinos quanto à capacidade de síntese microbiana e à cinética digestiva, através de ensaios in vitro, in situ e in vivo, baseados em metodologias convencionais e nucleares. Foram utilizados seis ovinos da raça Santa Inês com peso vivo médio de 40±5,7 kg e providos de cânulas no rúmen e no duodeno proximal. Fenos de alfafa (ALF), de braquiária (BRA) e de Tifton-85 (TIF) foram escolhidos devido a seus teores de proteína bruta (PB) (respectivamente, 191, 29 e 75 g.kg-1 MS). Dois delineamentos experimentais

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29

Souza, Nedilse Helena de. "Efeitos de níveis crescentes de fibra em detergente neutro na dieta sobre a fermentação e digestão ruminal em bubalinos e bovinos." Universidade de São Paulo, 1999. http://www.teses.usp.br/teses/disponiveis/74/74131/tde-25062002-203038/.

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Quatro bubalinos e quatro bovinos adultos com fístulas ruminais foram utilizados com o objetivo de se estudar os efeitos de diferentes níveis de fibra em detergente neutro na dieta sobre as características de fermentação e digestão ruminal. Foram avaliadas os seguintes parâmetros: degradabilidades da matéria seca, proteína bruta, fibra em detergente neutro do feno de Coast-cross e do farelo de trigo; matéria seca e, proteína bruta do milho em grãos moídos e do farelo de soja; digestibilidade com marcador (Cr2O3); concentração de amônia, produção de ácidos graxos voláteis (acético, propiônico e

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30

Agbagla-Dohnani, Ahoefa. "Etude biochimique et ultrastructurale de la dégradation ruminale de la paille de riz." Clermont-Ferrand 2, 2002. http://www.theses.fr/2002CLF21342.

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L'objectif de ce travail était d'étudier l'utilisation digestive des pailles de riz chez les herbivores, en particulier les ruminants. Après une analyse de la bibliographie, 4 volets d'étude ont été définis. Les pailles de riz françaises étant peu connues, nous en avons caractérisé 15 variétés. Elles se distinguaient des pailles asiatiques, américaines ou australiennes, par une forte dégradation ruminale, feuilles/tiges et une teneur en lignines élevés, une faible teneur en silice. La variabilité de la dégradation a été expliquée à plus de 60% par la proportion de limbes foliaires et la teneur

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31

Noirot, Virginie. "Intérêt et mode d'action des huiles essentielles dans l'alimentation du ruminant." Toulouse, INPT, 2006. http://www.theses.fr/2006INPT026A.

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Dans le domaine de l'alimentation des ruminants, les huiles essentielles, en raison de leur pouvoir antibactérien, sont considérées de plus en plus comme une des solutions alternatives aux antibiotiques tels que les ionophores. Cette étude a pour but de caractériser les effets de deux composés aromatiques issus des huiles essentielles (CHE), l'aldéhyde cinnamique (Ac) et le carvacrol (Cv). Quatre expérimentations sont menées, avec des méthodologies différentes : in vitro en culture batch, avec des doses de 10, 100 et 1000 ppm dans le milieu, un substrat reproduisant une ration simplifiée et de

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32

Halbouche, Miloud. "Flux, digestion et utilisation des matières azotées par les caprins : contribution à la méthodologie d'estimation du flux digestif, influence de la réduction des apports alimentaires et de l'addition d'acides animés protégés." Vandoeuvre-les-Nancy, INPL, 1994. http://docnum.univ-lorraine.fr/public/INPL_T_1994_HALBOUCHE_M.pdf.

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Nous avons étudié l'influence de la quantité et de la qualité des matières azotées alimentaires sur le flux des matières azotées dans les différents compartiments du tube digestif et sur l'utilisation de l'azote par les chèvres laitières. Trois séries d'essais ont été mises en place: limitation des quantités ingérées, modification des apports d'azote dégradable et supplémentation en acides aminés essentiels (lysine et méthionine). Les teneurs en marqueurs (PEG et Cr2 O3) du contenu duodénal varient au cours du nycthémère. Cependant la réduction du nombre de prélèvements d'échantillons (12 à 4)

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33

Nogueira, Ricardo Galbiatti Sandoval. "Enteric and feces methane emissions, fermentative ruminal parameters and feeding behavior of cattle fed cottonseed and vitamin E." Universidade de São Paulo, 2017. http://www.teses.usp.br/teses/disponiveis/10/10135/tde-02052017-125157/.

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Problems about greenhouse gas emissions attributed to cattle production and improvements in the productivity of these animals has been growing and becoming increasingly important. Cattle releases methane as part of their digestive process, and this represents loss of energy for the animal. The decomposition of feces releases methane and it can be recovered by digester and transformed into different types of energy. Thus, aiming to quantify the potential production of enteric methane and anaerobic fecal decomposition, as well as to evaluate ruminal and behavioral parameters of cattle fed with c

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34

Sileshi, Zinash. "Development of a simple in vitro gas production technique, using a pressure transducer, to estimate digestion of some Ethiopian forages." Thesis, University of Reading, 1994. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.241462.

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35

GRIMAUD, PATRICE. "Effets de la sous-alimentation energetique sur la digestion ruminale chez les bovins et les ovins." Rennes, Agrocampus Ouest, 1999. http://www.theses.fr/1999NSARB112.

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Les effets de la sous-alimentation sur la physiologie digestive des femelles de ruminants sont etudies dans 4 experimentations, une sur des vaches holstein en milieu tempere, les trois autres sur des vaches zebu peuhl et taurin baoule, et sur des brebis bali-bali, en climat tropical. Dans tous ces essais la digestibilite, quand elle a ete affectee par le niveau alimentaire, a chute quand les quantites ingerees ont diminue, phenomene inverse de celui reporte en general par la bibliographie. Une etude plus approfondie de la litterature montre qu'en fait la relation negative entre digestibilite e

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36

Useni, Bilungi Alain. "Effect of exogenous fibrolytic enzymes on fibre and protein digestion in ruminant animals." Thesis, Stellenbosch : University of Stellenbosch, 2011. http://hdl.handle.net/10019.1/6744.

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Thesis (MScAgric (Animal Sciences))--University of Stellenbosch, 2011.<br>Includes bibliography.<br>ENGLISH ABSTRACT: Forages are the main feed components in ruminant production systems for the reason that they are often the major source of energy available to the animal. However, only 10 to 35% of energy intake is available as net energy because the digestion of plant cell walls is not complete. This can significantly affect livestock performance and profits in production systems that use forages as a major source of nutrients of the diet. As a result of low and variable nutritive values

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37

Ohajuruka, Ojimadu A. "Studies on the effect of fat source and amount on ruminal metabolism and digestion and on the use of long chain hydrocarbons as a digestion marker in cows /." The Ohio State University, 1990. http://rave.ohiolink.edu/etdc/view?acc_num=osu1487677267727568.

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38

Montgomery, Sean P. "Effects of supplemental fat source on finishing cattle growth performance, carcass characteristics, ruminal metabolism, and site and extent of digestion /." Search for this dissertation online, 2005. http://wwwlib.umi.com/cr/ksu/main.

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39

Barcena-Gama, Jose Ricardo. "Effect of roughage source on ruminal kinetics of digestion and passage of individual feed components in mixed diets for steers." Diss., The University of Arizona, 1989. http://hdl.handle.net/10150/184834.

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Total tract digestion coefficients for dry matter (DM) and neutral detergent fiber (NDF), passage rates for grain and roughage components of diets and liquid turnover were measured for 65 and 90% concentrate diets in separate 4 x 4 Latin square experiments using intact growing steers. Kinetics of in situ digestion for DM and NDF in diet ingredients, rumen pH, volume and DM distribution were determined in mature, rumen cannulated steers. Rates of passage and digestion were combined to calculate apparent extent of ruminal digestion (AERD) for diet ingredients. Diets were based on steam flaked mi

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40

Barletta, Rafael Villela. "Avaliação da cinética ruminal e fluxo abomasal de ácidos graxos em vacas leiteiras suplementadas com fontes lipídicas." Universidade de São Paulo, 2015. http://www.teses.usp.br/teses/disponiveis/10/10135/tde-12082015-160012/.

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O objetivo deste estudo foi avaliar a biohidrogenação ruminal e o fluxo intestinal de ácidos graxos em vacas leiteiras suplementadas com diferentes fontes lipídicas. Foram utilizadas 8 vacas da raça Holandesa no terço médio de lactação (180 ± 20 dias em lactação; média ± DP) canuladas no rúmen e abomaso (580 ± 20 kg de peso corporal; media ± DP), agrupadas em dois quadrados latinos 4 x 4 balanceados, que foram alimentadas com as seguintes dietas: 1) Controle (C), dieta a base de milho e farelo de soja; 2) Óleo de soja (OS); 3) Grão de soja in natura (GS); e 4) sais de cálcio de ácidos graxos i

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Martin, Cécile. "Influence du ph ruminal sur la digestion des parois vegetales, en relation avec les modifications de l'activite fibrolytique de l'ecosysteme microbien." Clermont-Ferrand 2, 1994. http://www.theses.fr/1994CLF21651.

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L'objectif de ces travaux etait de mieux comprendre les phenomenes d'interactions digestives qui ont lieu dans le reticulo-rumen des ruminants nourris avec des regimes mixtes de concentres et de fourrages. Nous nous sommes particulierement interesses a l'influence du ph ruminal sur la digestion des constituants parietaux en relation avec les modifications de l'ecosysteme microbien. Ceci a pu etre realise en comparant la digestion de 3 rations, foin (100:0), foin + orge (65:35), et foin + orge (65:35) + tampon, la ration etant distribuee en une seule fois par jour. L'impact des variations du ph

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Ogunde, Adeboye Olanipekun. "The fate of protected methionine, proline and glutamate in the ruminant digestive tract." Thesis, University of Newcastle Upon Tyne, 1989. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.352917.

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Al-Mashikhi, Mohammed S. "Influence of the Ruminant Digestive Process on the Germinability of Range Forage Species." DigitalCommons@USU, 1993. https://digitalcommons.usu.edu/etd/6498.

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Ingestion and dispersal of seeds of desirable species by domestic livestock is potentially important as a range improvement practice, but the passage of seed by livestock has only been studied in a fragmented way, particularly for species adapted to rangelands of western North America. The objectives of this research were to examine the effects of different periods of exposure to in vitro and in vivo digestion processes in cattle on the germinability of several grass species, and determine if the in vitro incubation technique is a good predictor of seed fate following passage through the rumin

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Blanchart, Gérard. "Dégradation des matières azotées d'origine végétale chez le ruminant : explication et prévision à partir d'un fractionnement." Vandoeuvre-les-Nancy, INPL, 1988. http://www.theses.fr/1988NAN10341.

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Rodrigues, João Paulo Pacheco. "Soybean oil supplementation for cattle: effects on in vitro digestion, dairy cattle performance, and milk fat composition." Universidade Federal de Viçosa, 2017. http://www.locus.ufv.br/handle/123456789/11059.

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Submitted by Reginaldo Soares de Freitas (reginaldo.freitas@ufv.br) on 2017-07-06T12:17:24Z No. of bitstreams: 1 texto completo.pdf: 856297 bytes, checksum: dc903620d8109996864468f00c3eaaa2 (MD5)<br>Made available in DSpace on 2017-07-06T12:17:24Z (GMT). No. of bitstreams: 1 texto completo.pdf: 856297 bytes, checksum: dc903620d8109996864468f00c3eaaa2 (MD5) Previous issue date: 2017-02-21<br>Conselho Nacional de Desenvolvimento Científico e Tecnológico<br>O presente trabalho foi desenvolvido com base em três estudos avaliando o óleo de soja (OS) como suplemento lipídico para vacas leiteir

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SILVA, Saulo de Tarso Gusmão da. "Avaliação da monensina sódica na prevenção da acidose láctica ruminal induzida em caprinos – Parâmetros hematológicos e bioquímicos." Universidade Federal Rural de Pernambuco, 2012. http://www.tede2.ufrpe.br:8080/tede2/handle/tede2/6299.

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Submitted by (lucia.rodrigues@ufrpe.br) on 2017-02-10T14:01:11Z No. of bitstreams: 1 Saulo de Tarso Gusmao da Silva.pdf: 1395412 bytes, checksum: 9781dae1143217a1305e65c5e7588b80 (MD5)<br>Made available in DSpace on 2017-02-10T14:01:11Z (GMT). No. of bitstreams: 1 Saulo de Tarso Gusmao da Silva.pdf: 1395412 bytes, checksum: 9781dae1143217a1305e65c5e7588b80 (MD5) Previous issue date: 2012-02-08<br>Coordenação de Aperfeiçoamento de Pessoal de Nível Superior - CAPES<br>Conselho Nacional de Pesquisa e Desenvolvimento Científico e Tecnológico - CNPq<br>The objective of this study was to eva

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Coupe, Lindsey Rebecca. "Effects of Corn Condensed Distillers Solubles Supplementation on Intake, Performance, Rate and Site of Digestion, and Ruminal Fermentation in Cattle Consuming Forage-Based Diets." Thesis, North Dakota State University, 2015. https://hdl.handle.net/10365/27353.

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Two studies were conducted to determine effect of feeding method and level of corn condensed distillers solubles supplementation on performance of beef cows fed forage-based diets and effects on digestibility and ruminal fermentation. Experiment 1 utilized 80 gestating crossbred cows in a randomized complete block design. Treatments were arranged in a 2 ? 2 + 1 factorial design; main effects were feeding method (mixed vs. fed separately) and level of CCDS. All treatments were offered ad libitum forage. Experiment 2, utilized 5 ruminally and duodenally cannulated Holstein steers in a 5?5 Latin

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Sitorski, Leonardo Gomes. "The Effects of Metabolizable Protein Intake and Post-Ruminal Flow of Amino Acids on Growth Performance and Pancreatic Digestive Enzymes in Steers." Thesis, North Dakota State University, 2018. https://hdl.handle.net/10365/29229.

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Excessive dietary protein may affect MP use because of energetic costs of excreting excess N. Amino acids also may influence post-ruminal digestion. Therefore, two experiments were designed to evaluate the effects of MP intake and post-ruminal flow of AA on growth performance and pancreatic digestive enzymes. In experiment 1, treatments supplied different amounts of MP intake to cattle and the effects on growth performance and feeding behavior were evaluated. In experiment 2, duodenal infusion of glutamate or casein was examined and the effects on pancreatic enzymes were measured. Experiment 1

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Cardoso, Felipe Cardoso de. "Deslocamento de abomaso à esquerda em vacas leiteiras de alta produção: variações no hemograma, indicadores bioquímicos sanguíneos e do funcionamento ruminal." reponame:Biblioteca Digital de Teses e Dissertações da UFRGS, 2007. http://hdl.handle.net/10183/10839.

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O deslocamento de abomaso (DA) é uma doença multifatorial relacionada com o manejo alimentar que afeta vacas leiteiras de alta produção principalmente durante o início da lactação. Este trabalho teve como objetivo avaliar indicadores bioquímicos de diagnóstico e tratamento no deslocamento de abomaso à esquerda (DAE) em vacas leiteiras na Região do Planalto do Rio Grande do Sul. As amostras foram coletadas de um total de quarenta animais, sendo vinte vacas com DAE e vinte vacas clinicamente sadias utilizadas como grupo controle. Foram coletadas amostras de líquido ruminal, sangue e urina para a

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Eugène, Maguy. "Effets de la défaunation de ruminants sur les performances de production, en fonction de la ration ingérée. Etude des variations de la protéosynthèse et de la cellulolyse microbienne ruminale." Phd thesis, INAPG (AgroParisTech), 2002. http://pastel.archives-ouvertes.fr/pastel-00000348.

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Cette thèse avait pour objectif d'évaluer la défaunation comme technique permettant une meilleure nutrition des ruminants. La défaunation entraîne une augmentation du flux d'azote (non ammoniacal) au niveau du duodénum. Cependant, des études de la littérature indiquent que l'effet de la défaunation sur les productions animales (viande, lait et laine) est variable. Notre hypothèse de travail est que le rapport azote / énergie (PDIN / UF) de la ration est le principal facteur de variation des effets observés. Nous avions pour objectifs: 1) Etablir les lois de la réponse animale à la défaunation

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