Source: LANGSTON UNIVERSITY submitted to NRP
SECURING SUSTAINABLE PRODUCTION OF SMALL RUMINANTS IN THE USA
Sponsoring Institution
National Institute of Food and Agriculture
Project Status
ACTIVE
Funding Source
Reporting Frequency
Annual
Accession No.
1026010
Grant No.
2021-38821-34593
Cumulative Award Amt.
$299,975.00
Proposal No.
2020-11046
Multistate No.
(N/A)
Project Start Date
Apr 1, 2021
Project End Date
Mar 31, 2026
Grant Year
2021
Program Code
[EQ]- Research Project
Recipient Organization
LANGSTON UNIVERSITY
(N/A)
LANGSTON,OK 73050
Performing Department
Am. Inst. for Goat Res
Non Technical Summary
According to the2012 Census of Agriculture, value of sales for the goat and sheep sector of US agriculture increased 33 percent over the sales figure from the 2007 census. During 2012 sales of sheep and goats and their products totaled $939.7 million, accounting for 0.2 percent of all agricultural products sold in the United States. Additionally, in 2012 there were approximately 115,000 sheep and goat farms, accounting for 5.4% of all farms in the United States. Maintaining health of sheep and goats is crucialfor maintaining a safe and available food supply (http://www.aphis.usda.gov). Goat production (especially meat and dairy types) is the fast growing livestock industry in the US because of the increasingly diverse ethnicity of the population, health attributes of goat meat and milk, compatibility of goats with other domestic ruminant species, and suitability of goats for small as well as moderate and large farm settings. All goat inventory in the US on January 1, 2017 totaled 2.64 million head, up 1% from 2016 and remained stable these years (2019; https://www.nass.usda.gov). However, along with the fast growth of the goat population, some health issues of goats put this new industry in jeopardy. A tremendous threat is internal parasitism, which significantly restrains goat production and erodes the profit of goat producers. The USDA National Animal Health Monitoring System reported that 74% of sheep in the US encountered gastrointestinal parasitism (USDA, 2003). Necropsy records have shown that internal parasites cause more goats to die in the southeastern United States than the total of the next three leading causes of goat deaths (USDA, 2012). Current management of internal parasitism in small ruminants is mainly through utilization of chemical drugs. Nevertheless, this practice is challenged by lack of effective anti-parasite drugs (for coccidiosis), and the increasing demand for "green" animal products in the consumer market. Therefore, this proposed research is highly relevant to the goat and sheep industry in Oklahoma, other regions of the US, and many parts of the world.The overall goals of this project are to secure sustainable production of small ruminants in the USA by integrating resources and technologies and enhance the impact of Langston University. To achieve these goals, series of in vitro and animal experiments will be conducted. The specific objectives are to evaluate the effectiveness of a variety of plant extracts collected globally on coccidiosis in small ruminants. The results from these studies are anticipated to develop anti-coccidia product(s) that can directly act to the parasites or indirectly through the enhancement of protective immunity in the host. The experiments will demonstrate efficacy of the anti-coccidia compounds isolated from plants and their crucial role in modulation of the immunity in parasite-resistance. Overall, these studies will provide significant measures and information to combating the nasty parasitism in small ruminants industry. This project will enhance the capability of LU to conduct collaborative research with other institutions on issues relevant to US agricultural competitiveness, increase the sharing of research findings, and improve the capability to provide leadership in increasing goat production efficiency in the USA. Furthermore, the involvement in every aspect of cutting-edge research and state-of-the-art laboratory technologies as proposed in this project, our students will be well prepared for a broader and brighter future career.
Animal Health Component
10%
Research Effort Categories
Basic
80%
Applied
10%
Developmental
10%
Classification

Knowledge Area (KA)Subject of Investigation (SOI)Field of Science (FOS)Percent
31338201110100%
Knowledge Area
313 - Internal Parasites in Animals;

Subject Of Investigation
3820 - Goats, meat, and mohair;

Field Of Science
1110 - Parasitology;
Goals / Objectives
The overall goals of this project are to secure sustainable production of small ruminants in the USA by integrating resources and technologies and enhance the impact of Langston University.To achieve these goals, series of in vitro and animal experiments will be conducted. The specific objectives are:1. to evaluatein vitro efficacy of a variety of plant extractson anti-coccidial oocyst sporulationand oocyst viability;2.to characterize the profile of cytokine gene expression in peripheral blood mononuclear cells stimulated by Eimeria antigens, and to demonstrate effects of compounds purified from herbs on expression of these genes;3.to determine the anti-coccidial efficacy of the most potentialherb extracts in goats;4.to determine the optimal dose for maximal anti-coccidial activity of the herbal extracts in goats;5.to investigate immune responses totreatments of herbal extracts in goats.
Project Methods
The overall goals of this proposal are to develop alternative anti-coccidial products from herbs to reduce the use of synthetic drugs in small ruminants and to investigate the modulatory effects of compounds from herbs on protective immunity to coccidia. To achieve these goals, a series of animal and in vitro experiments will be conducted at LU.There are four phases of activities in the project: 1) signing an agreement of information sharing and arrangement of collaborative research; 2) screening bio-active herbs and testing the efficacy of selected herbal extracts in vitro; 3) interpreting and summarizing results from preliminary studies; and 4) conducting experiments to illustrate the possible mechanisms by which the bioactive compounds to inhibit or damage the parasites.Experimental progress and results from the research will be presented and discussed on a regular basis during monthly internal research meetings at the Institute and by webinar with collaborators. All collaborators will be provided with data as each experiment is completed and given opportunity to help interpret data and to plan future studies. Results will be presented in abstract, poster and oral paper formats at scientific conferences which will then lead to feedback from other researchers.The evaluations will be focused on the progress and outcomes of the research. The activities in each Phase should strictly be kept within the timelines as stated in the Timetable. ?At the beginning of plan for each movement, questions will be asked if the activities can achieve the anticipated outcomes. At the completion of each Phase, questions will be asked if the data and information collected arewithin the scope of expected outcomes. Therefore, the evaluations start from the beginning and continue from time to time till completion of this project.

Progress 04/01/23 to 03/31/24

Outputs
Target Audience:The research findings of this project were dissiminated toanimal scientists, small ruminant producers, veterinarians, and agricultural administrative personnel, through participating scientific conferences, our school's small farmer conference and goat field day, news letters, and seminars. Changes/Problems:Due to the unfunctional fume hood problem in our laboratory building, the solvent-extraction of plant materials delayed and the progress of this project has been hindered. If the fume hood would not be fixed in the near futhur, we'll find an alternative way to complete all the proposed studies. What opportunities for training and professional development has the project provided?During this period, two undergraduate students were involved in the animal study,laboratory analysis, and results presentation in a conference. These students gained first-hand knowledge in every aspectof conducting scientific investigation under the supervision of the PI and the visiting research scientist. How have the results been disseminated to communities of interest?The findings of this research were disseminated to the audiance in the ARD conference, small ruminant producers and related personnel during our annual goat field day and small farm producer conference, also disseminated to school faculties and students in our departmental seminars. What do you plan to do during the next reporting period to accomplish the goals?Since the exhausting fume hood in our laboratory building broken-down in the last 2 years, the solvent-extraction of the plant materials was not done. Therefore, during the next reporting period, we'll: 1) complete the extractions of the herbal materials; 2) evaluate in vitro efficacy of a variety of plant extracts on anti-coccidial oocyst sporulation and oocyst viability; and 3) determine the anti-coccidial efficacy of the most potential herb extracts in goats.

Impacts
What was accomplished under these goals? Oneanimalstudywasconducted in this report period. Thestudy was planned initially to use medicinal plants to treat parasites of both proatozoan andhelminths in the same animals.However, only the helminthic parasiteswere focused on because very few goats that infected with coccidian (protozoan) parasites werefound at the LU farm. Based on our preliminary laboratory observations, piperine, a bioactive compound from black pepper, showed a potent anthelmintic property. Therefore, the anthelmintic efficacy of black pepper in goats naturally infected with parasitic nematodes, mainly Haemonchus contortus, was evaluated.12 adult Spanish goats with 500 - 3000 FEC were randomly assigned to 2 groups, 1 group of the goats were fed with 50 grams of black pepper powder (BPP) daily, and another were as control (no treatment). After the goats were fed for10 days with the BPP, their live body weights, parameters of blood chemistry, and fecal egg counts did not change statistically. But the rate of hatchment of worm eggs decreased 86% in the treated group compared to the 2% decrease in the control group. More than 80% of the hatched larvae were identified as H. contortus. Among the major nematode parasites in small ruminants, the blood feeder H. contortus is the most pathogenic. The infection of H. contortus causes anemia and even death of host animals. The importance of the finding in this study is that a potent alternative antheminticis emerging. The black pepper is very promising to be developed as an effective anthelmintic product(s). This potential product(s) will act directly on the infecting parasites by disrupting (blocking) their metabolism in certain stage of their life cycle. The outcome of this project will lead to an effective strategy for parasite control in grazing ruminants in the USA and worldwide.

Publications


    Progress 04/01/22 to 03/31/23

    Outputs
    Target Audience:The significance and findings of this project were dissiminated to the audience, including animal scientists, small ruminant producers, veterinarians, and agricultural administrative personnel, through our school's goat field day, news letters, and seminars. Changes/Problems:Due to the failures of fume/exhaust hoods in our laboratory since last year, any organic solvents (such as ethanol, methanol, acetone) cannot be used in the laboratory. Consequently, the medicinal herbs that we bought and ground cannot be extracted. Hopefully, the system will be fixed soon. What opportunities for training and professional development has the project provided?This project has provided an excellent opportunity to the Visiting Scientist who hasn't been trained well in laboratory procesures and analyses. Since coming to the Langston University, this individual has been performing a serial in vitro tests of anthelmintic property of a few compounds under supervision of the PI. How have the results been disseminated to communities of interest?The research results and findings were disseminated to small ruminant producers and related personnel during our annual goat field day andsmall farmproducer conference,alsodisseminated to school faculties and students in our departmental seminars. What do you plan to do during the next reporting period to accomplish the goals?During the next reporting period, we'll: 1)complete the extractions of the herbal materials; 2)evaluate in vitro efficacy of a variety of plant extracts on anti-coccidial oocyst sporulation and oocyst viability; and 3)determine the anti-coccidial efficacy of the most potential herb extracts in goats.

    Impacts
    What was accomplished under these goals? A visiting scientist from Nigeria joined this project last August. The herbal materials have been ground but not extracted because of the whole system of the fume hoods in our laboratory broke down since last year.The raw herbal materials have been used to test their effects on the immune response of goats that they are naturally infected with internal parasites.This experimentis still ongoing.

    Publications


      Progress 04/01/21 to 03/31/22

      Outputs
      Target Audience:The research ofthis project wasdissiminated to the audience, including animal scientists, smallruminant producers, veterinarians,and agricultural administrative personnel, through our school's goat field day and news letters. Changes/Problems: Nothing Reported What opportunities for training and professional development has the project provided?The primary investigatorattended the Immunology 2022 conference at Portland, participatedmany presentations and activities of the symposium,also interacted with many researchers for research ideas exchanging. How have the results been disseminated to communities of interest?The research objectives and potential significances were disseminated to small ruminant producers andrelated personnel during our annual goat field day and small farmers conference. What do you plan to do during the next reporting period to accomplish the goals?The following studies will be performed during the next reporting period: 1. to evaluatein vitro efficacy of a variety of plant extractson anti-coccidial oocyst sporulationand oocyst viability; 2.to evaluate effects of compounds purified from herbs on host immunity to coccidial parasites; 3.to determine the anti-coccidial efficacy of the most potentialherb extracts in goats;

      Impacts
      What was accomplished under these goals? Experimental procedures and materials were prepared and ready to start experiments. A visiting scientist recruiting is nearly completed.

      Publications