Simplified Method for Producing Permanent Ruminal Fistulae

Thyfault, H.A.; Leffel, E. C.; Huang, Ming Der

doi:10.3168/jds.s0022-0302(75)84805-3

Cited by 7 publications

(5 citation statements)

References 2 publications

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“…Several techniques have been designed to study the rumen microbial population and its changes between the different stages of the calf. Fistulas are commonly used for these types of studies, as they simplify the collection of rumen fluid, but one of their main disadvantages is the invasiveness of the surgery during early stages of development in calves (Thyfault et al, 1975). They can also be cost prohibitive compared with a rumen pump and put more stress on the animal when the calf is at the early stages of developing an active immune system.…”

Section: Technical Notementioning

confidence: 99%

Technical note: A simple rumen collection device for calves: An adaptation of a manual rumen drenching system

Klopp

Oconitrillo

Sackett

et al. 2018

Journal of Dairy Science

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A limited amount of research is available related to the rumen microbiota of calves, yet there has been a recent spike of interest in determining the diversity and development of calf rumen microbial populations. To study the microbial populations of a calf's rumen, a sample of the rumen fluid is needed. One way to take a rumen fluid sample from a calf is by fistulating the animal. This method requires surgery and can be very stressful on a young animal that is trying to adapt to a new environment and has a depressed immune system. Another method that can be used instead of fistulation surgery is a rumen pump. This method requires a tube to be inserted into the rumen through the calf's esophagus. Once inside the rumen, fluid can be pumped out and collected in a few minutes. This method is quick, inexpensive, and does not cause significant stress on the animal. This technical note presents the materials and methodology used to convert a drenching system into a rumen pump and its respective utilization in 2 experiments using dairy bull calves.

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Section: Technical Notementioning

confidence: 99%

Technical note: A simple rumen collection device for calves: An adaptation of a manual rumen drenching system

Klopp

Oconitrillo

Sackett

et al. 2018

Journal of Dairy Science

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“…Along with the use of animals for various purposes, ethical concerns and questions about the merits of these experiments have grown, as has increasing demands on society for the care and welfare of animals. Although it is a relatively old practice (dating back to the 1920s), the fistulation process (surgically opening a canal between an organ and the outside) and cannulation (inserting a valve into the cavity) of one of the stomach compartments (rumen) of cattle still causes outrage among the public (THYFAULT et al, 1975;CHAUDHRY;MOHAMED, 2012;PACHECO et al, 2012). After all, why would anyone perform this procedure?…”

Section: Introductionmentioning

confidence: 99%

Can ruminal inoculum from slaughtered cattle replace inoculum from cannulated cattle for feed evaluation research?

Alba

Oliveira

Carvalho

et al. 2018

SCA

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The objective was to test the hypothesis that ruminal inoculum obtained from slaughtered cattle can replace inoculum from cannulated cattle in trials evaluating animal feedstuffs through in vitro gas production and digestibility. Five adult Holstein × Zebu steers with ruminal cannula were used to collect and compare rumen liquid from in vivo and slaughtered animals. In vitro dry matter digestibility (IVDMD), in vitro neutral detergent fiber digestibility (IVNDFD) and ammoniacal nitrogen concentrations did not differ between inoculum sources (slaughtered × cannulated) for all byproducts and levels tested. Total in vitro gas production in the ruminal inoculum of cannulated animals was greater (P < 0.001) than slaughtered cattle for different levels of licuri cake. However, the greatest total concentrations of in vitro gases for slaughtered animals were observed when evaluating different levels of crude glycerin (P < 0.001). No differences were observed for diets containing castor bean meal (P >0.05). Thus, the ruminal inoculum obtained from the ruminal contents of slaughtered cattle can replace the use of fistulated animals and is a viable alternative to digestibility analysis. This approach is ethically more correct because it alleviates the suffering of animals by avoiding an invasive procedure.

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“…A prática de canulação ruminal foi documentada pela primeira vez por Schalk & Amadon (1928). Possui grande importância nos estudos de nutrição animal, tornando possível avaliar o metabolismo e a fisiologia do pré-estômago com maior facilidade (Duffield et al, 2004;Grovum, 1989;Thyfault et al, 1975). Nos animais fistulados, também se pode pesquisar a degradabilidade in situ (Muniz et al, 2008;Santra & Karim, 2002), além da realização da transfaunação, que consiste na transfusão de microbiota ruminal de uma animal saudável para o rúmen de um animal doente em diversas patologias (DePeters & George, 2014).…”

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Fistulação e canulação ruminal em bovinos: Revisão

Begnini¹,

Meireles²

2022

Pubvet

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A fistulação e canulação do rúmen em bovinos é uma técnica que possui grande importância nos estudos de nutrição animal. Com a implantação de cânulas, é possível avaliar o metabolismo e a fisiologia do pré-estômago, pesquisar a degradabilidade de alimentos e forragens in situ, além de serem importantes no processo de transfaunação que consiste na transferência de microbiota ruminal de um animal saudável para um doente. A fistulação do rúmen e a implantação da cânula são realizadas mediante intervenção cirúrgica, que variam conforme o tipo de cânula utilizada. Além disso, a fistulação pode ser realizada em um ou dois estágios operatórios, com diferentes técnicas cirúrgicas descritas na literatura. Complicações pós-operatórias e implicações éticas vem sendo relatadas no presente trabalho, além da importância de estudos realizados com a microbiologia ruminal, principalmente avaliando-se as interações entre os micro-organismos e hospedeiros. Conclui-se que a técnica de canulação em bovinos, bem realizada cirurgicamente com menor sofrimento animal, sendo certificado pelo Comitês de Ética na Utilização de Animais, são importantes para pesquisas na área de nutrição animal e emergências na clínica de ruminantes.

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Simplified Method for Producing Permanent Ruminal Fistulae

Cited by 7 publications

References 2 publications

Technical note: A simple rumen collection device for calves: An adaptation of a manual rumen drenching system

Technical note: A simple rumen collection device for calves: An adaptation of a manual rumen drenching system

Can ruminal inoculum from slaughtered cattle replace inoculum from cannulated cattle for feed evaluation research?

Fistulação e canulação ruminal em bovinos: Revisão

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