Abstract
The widespread woodland coverage (61%) in the southeast US may provide extended grazing and browsing opportunities for small ruminants. However, much of the vegetation present in woodlands is above small ruminants’ browse height, suggesting that lowering the height of non-pine (understory) vegetation could increase forage availability for animals, resulting in better animal performance. This study assessed the vegetation utilization pattern at different heights by small ruminants and evaluated their performance in woodlands. Goats (Kiko wethers) and sheep (Katahdin rams) were rotationally stocked in plots with a southern pine overstory and an understory comprised of a mixture of herbaceous plants, shrubs, and hardwood seedlings and saplings. The non-pine plants were cut to one of three heights from the ground level (0 m, 0.9 m, and 1.5 m) or left uncut (control). Browsing height and animals' preference for different plant species were monitored after removing animals from each study plots. Live weight (LWt), body condition score (BCS), and FAMACHA score were collected before stocking animals in the study plots and fortnightly thereafter. Goats browsed from higher vegetation strata than sheep (1.2–1.6 m vs. 0.9–1.1 m). Vegetation in the uncut control was least eaten. The BCS (1–5: 1- severely thin, 5—obese) was within the range for healthy animals in both goats (2.4–2.8) and sheep (2.8–4.0). FAMACHA score (1–5: 1- no anemia, 5-severely anemic) ranged from 1.6 to 2.1 in goats and 1.0–2.7 in sheep suggesting no anemic condition. Maintaining non-pine plants at low heights (1.1–1.6 m) increased the vegetation utilization by small ruminants for acceptable performance.
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Data Availability
The data that support the findings of this study are available on request from the corresponding author, Shailes Bhattrai on reasonable request.
References
Bhattrai S, Karki U, Poudel S, McElhenney W (2020a) Diurnal behavior and distribution patterns of Kiko wethers and Katahdin rams in woodlands with different vegetation heights during fall. Agrofor Sys 94:1809–1823. https://doi.org/10.1007/s10457-020-00500-x
Bhattrai S, Karki U, Poudel S, Paneru B, Ellis N (2020b) Maintenance of non-timber plants at low heights increased the solar radiation influx and understory vegetation biomass in woodlands. Global J Agricultural Allied Sci 2(1):18–24
Bhattrai S, Karki U, Poudel S (2021) Vegetation height and diurnal period influenced the landscape-use pattern of small ruminants in woodlands around summer. Forests 12(2):205. https://doi.org/10.3390/f12020205
Bigelow D, Borchers A (2017) Major uses of land in the United States, 2012. EIB-178, United States Department of Agriculture, Economic Research Service. https://ageconsearch.umn.edu/record/263079/files/eib-178.pdf. Accessed 24 February 2019
Celaya R, Oliván M, Ferreira LMM, Martínez A, García U, Osoro K (2007) Comparison of grazing behaviour, dietary overlap, and performance in non-lactating domestic ruminants grazing on marginal heathland areas. Livest Sci 106:271–281. https://doi.org/10.1016/j.livsci.2006.08.013
Detweiler G, Gipson T, Merkel RC, Goetsch A, Sahlu T (2008) Body condition scores in goats. Pages 127–133 in Proc. 23rd Annual Goat Field Day, Langston University, Langston, OK. https://archive.org/stream/BodyConditionScoresInGoatsDetweiler/Body%20Condition%20Scores%20in%20Goats%20Detweiler_djvu.txt. Accessed 6 June 2017
Ferreira LMM, Celaya R, Benavides R, Jáuregui M, García U, Sofia A, Rosa R, Rodrigues AM, Osoro K (2013) Foraging behaviour of domestic herbivore species grazing on heathlands associated with improved pasture areas. Livest Sci 155:373–383. https://doi.org/10.1016/j.livsci.2013.05.007
Harlow I (2016) FAMACHA scoring to identify parasite risk in small ruminants. https://www.farmanddairy.com/top-stories/famacha-scoring-to-identify-parasite-risk-in-small-ruminants/316777.html. Accessed 5 October 2020
Hoiechek JL (1984) Comparative contribution of grasses, forbs, and shrubs to the nutrition of range ungulates. Rangelands 6(6):261–263. https://doi.org/10.2307/3900880
Karki U (2013a) Pasture and grazing management for parasite control. In: Karki U (ed) Integrated management of internal parasites in goats. Workshop Proceedings. Tuskegee University Cooperative Extension Program. Publication No. TUAG 0513–01. Tuskegee, AL. Tuskegee University Cooperative Extension Program. https://www.tuskegee.edu/Content/Uploads/Tuskegee/files/CAENS/TUCEP/Livestock%20program/ParasiteWorkshop_Proceedings.pdf. Accessed 19 June 2019
Karki U (2013b) FAMACHA and smart drenching for managing barber pole worm. In: Karki U (ed) Integrated management of internal parasites in goats. Workshop Proceedings. Tuskegee University Cooperative Extension Program. Publication No. TUAG 0513–01. Tuskegee, AL. Tuskegee University Cooperative Extension Program. https://www.tuskegee.edu/Content/Uploads/Tuskegee/files/CAENS/TUCEP/Livestock%20program/ParasiteWorkshop_Proceedings.pdf. Accessed 25 April 2019
Karki U (2017) Woodland grazing notes with research highlights. Publication No. TUAG1017–01. Tuskegee, AL: Tuskegee University Cooperative Extension Program. https://www.tuskegee.edu/Content/Uploads/Tuskegee/files/CAENS/TUCEP/Livestock%20program/WoodlandGrazing.pdf. Accessed 24 February 2019
Khatri R, Karki U, Bettis J, Karki Y (2016) Grazing with goats changed the woodland plant-species composition during summer. Prof Agric Work J 4(1):10. https://tuspubs.tuskegee.edu/cgi/viewcontent.cgi?article=1078&context=pawj. Accessed 5 June 2019
Khatri R (2016) Use of woodlands and browse as complementary to the year-round grazing system for goats. Master’s thesis. Tuskegee University
Kingsbury JM, Hillman RB (1965) Pokeweed (Phytolacca) poisoning in a dairy herd. Cornell Veterinarian 55:534–538
McNulty S, Caldwell P, Doyle TW, Johnsen K, Liu Y, Mohan J, Prestemon J, Sun G (2013) Forests and climate change in the Southeast USA. In: Ingram, K.; Dow, K.; Carter, L.; Anderson, J., (ed). Climate of the Southeast United States: Variability, change, impacts, and vulnerability. Washington, DC: Island Press. 165–189. https://www.srs.fs.usda.gov/pubs/ja/2013/ja_2013_mcnulty_001.pdf. Accessed 24 February 2019
Ngwa AT, Pone DK, Mafeni JM (2000) Feed selection and dietary preferences of forages by small ruminants grazing natural pastures in the Sahelian zone of Cameroon. Anim Feed Sci Technol 88:253–266. https://doi.org/10.1016/S0377-8401(00)00215-7
NRC (2007) Nutrient requirements of small ruminants: sheep, goats, cervids, and New World camelids. Press, Washington, DC, Natl. Acad
Osoro K, Ferreira LMM, García U, Jáuregui BM, Martínez A, Rosa García R, Celaya R (2013) Diet selection and performance of sheep and goats grazing on different heathland vegetation types. Small Rumin Res 109:119–127. https://doi.org/10.1016/j.smallrumres.2012.07.010
Oswalt SN, Miles PD, Pugh SA, Smith WB (2018) Forest resources of the United States, 2017: a technical document supporting the Forest Service 2020 update of the RPA assessment. https://www.fia.fs.fed.us/programfeatures/rpa/docs/2017RPAFIATABLESFINAL_050918.pdf. Accessed 25 April 2019
Ouédraogo-Koné S, Kaboré-Zoungrana CY, Ledin I (2006) Behaviour of goats, sheep, and cattle on natural pasture in the sub-humid zone of West Africa. Livest Sci 105:244–252. https://doi.org/10.1016/j.livsci.2006.06.010
Papachristou TG, Platis PD, Papanastasis VP (1999) Use of deciduous woody species as a diet supplement for goats grazing Mediterranean shrublands during the dry season. Anim Feed Sci Technol 80:267–279. https://doi.org/10.1016/s0377-8401(99)00056-5
Papachristou TG, Dziba LE, Provenza FD (2005) Foraging ecology of goats and sheep on wooded rangelands. Small Rumin Res 59:141–156. https://doi.org/10.1016/j.smallrumres.2005.05.003
Peixoto PV, Wouters F, Lemos RA, Loretti AP (1997) Phytolacca decandra poisoning in sheep in southern Brazil. Vet Hum Toxicol 39(5):302–303
Pfister JA, Malechek JC, Balph DF (1988) Foraging behaviour of goats and sheep in the Caatinga of Brazil. J Appl Ecol 25:379–388. https://doi.org/10.2307/2403830
Provenza FD, Villalba JJ, Dziba L, Atwood SB, Banner RE (2003) Linking herbivore experience, varied diets, and plant biochemical diversity. Small Rumin Res 49:257–274. https://doi.org/10.1016/S0921-4488(03)00143-3
Rahman MM, Abdullah RB, Wan Khadijah WE (2013) A review of oxalate poisoning in domestic animals: tolerance and performance aspects. J Anim Physiol Anim Nutr 97(4):605–614
Rogosic J, Pfister JA, Provenza FD, Grbesa D (2006) Sheep and goat preference for and nutritional value of mediterranean maquis shrubs. Small Rumin Res 64:169–179. https://doi.org/10.1016/j.smallrumres.2005.04.017
Sanon HO, Kaboré-Zoungrana C, Ledin I (2007) Behaviour of goats, sheep, and cattle and their selection of browse species on natural pasture in a Sahelian area. Small Rumin Res 67:64–74. https://doi.org/10.1016/j.smallrumres.2005.09.025
Smith GW, Constable PD (2002) Suspected pokeweed toxicity in a boer goat. Vet Hum Toxicol 44(6):351–353
Thompson JM, Meyer HH (1994) Body condition scoring of sheep. Extension Service, Oregon State University. https://ir.library.oregonstate.edu/concern/administrative_report_or_publications/kk91fk644. Accessed 7 June 2019
Tsiouvaras CN, Havlik NA, Bartolome JW (1989) Effects of goats on understory vegetation and fire hazard reduction in a coastal forest in California. For Sci 35(4):1125–1131. https://doi.org/10.1093/forestscience/35.4.1125
Weather Underground (n.d.) https://www.wunderground.com/history/monthly/us/al/hope-hull/KMGM/date/2018-6. Accessed 20 June 2019
USDA Forest Service (1996). Sampling vegetation attributes. Forest Service, Technical Reference 1734–4, Bureau of Land Management, Denver, Colorado. https://archive.org/details/samplingvegetati3619nati/page/n9. Accessed 10 April 2019
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U.K. designed the experiment. S.B., S.P., B.P., and N.E. collected data. S.B. and U.K. performed statistical analysis and interpreted the results. S.B. prepared the manuscript and U.K. reviewed and edited it. S.B. and U.K. finalized the manuscript. All authors read and approved the final manuscript.
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Bhattrai, S., Karki, U., Poudel, S. et al. Vegetation-utilization pattern and performance of small ruminants in woodlands with altering heights of non-pine plants. Agroforest Syst 96, 505–516 (2022). https://doi.org/10.1007/s10457-021-00706-7
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DOI: https://doi.org/10.1007/s10457-021-00706-7