Comparative forage selectivity and nutrition of South American camelids and sheep

  • 146 Pages
  • 0.13 MB
  • English
Camelidae., Sheep -- South America -- Feed utilization effici
Statementby Felipe A. San Martin Howard.
ContributionsTexas Tech University.
The Physical Object
Paginationxii, 146 leaves :
ID Numbers
Open LibraryOL15195407M

New-World Camelids (NWC), especially the llama and guanaco, have been studied rather extensively by our South American colleagues. Digestive superiority of these animals, compared with sheep, in particular, is most impressive when they are fed from relatively lowquality nutritional sources; however, that superiority diminishes for higher protein and energy rations.

Numerically, sheep are the most important livestock species in the Andes. Camelids have been presumed to be less selective grazers than sheep because of their larger body size (San Martin, ).

The only research that has quan- tified the diets of llamas, and compared camelids and sheep is that of San Martin ().Cited by: Further research is recommended in digestive physiology, foraging behavior, and nutritional requirements of South American camelids.

INTRODUCTION The llama (Lama glama), alpaca (L. pacos), guanaco (L. guanicoe), and vicuna (L. vicugna) form the group known as South American camelids (SAC), but only the former two are by: Degradability of Andean Range Forages in Llamas and Sheep.

of South American camelids, Comparative selectivity and nutrition of South. Digestion and passage rates of grass hays by llamas, alpacas, goats, rabbits, and horses. Comparati ve forage selectivity and nutrition. of South American camelids and sheep.

Ph.D. Dissertation. Four 2-yr old alpacas ((48±) kg) and four 2-yr old sheep ((50±) kg) were used to study the pH and microbial community of forestomach from alpacas (Lama pacos) and sheep (Ovis aries) fed fresh alfalfa as the sole forage at low altitude ( m).

The forestomach fluid was taken anaerobically via Cited by: Many studies have suggested that South American camelids (SAC) have greater digestive efficiency than pecoran ruminants, but others have found no difference. In an effort to provide new data on this issue, we investigated the ability of SAC (alpacas and llamas), goats, horses, and rabbits to digest C 3 (Bromus inermis) and C 4 (Cynodon dactylon) grass hay with nearly equal nitrogen and cell wall Cited by: A review of the existing literature on the nutrition of llamas (Lama glama) and alpacas (L.

pacos) revealed that these South American camelids are better adapted to the harsh environment of the. The forage of SACs in their natural habitat is even more lignified and more difficult to digest. Moreover, SACs are less selective in their forage than for example sheep, which select more easily digestible fibers than SACs.

SACs hence need an additional mechanism to digest fibrous material. Vallenas et : Anke Vater, Johann Maierl. Camelids Eating Behavior and Its Implication on Environment C.D. Lu 1, O.G. Mahgoub 2 and I. Kadim 2 1 College of Agriculture, Forestry and Natural Re source Management, University of Hawaii.

Comparative Nutrition Of Sheep And Camelids. In Proceedings, Small Ruminant Workshop, Small Ruminant CRSP, University of California, Davis. Saun, R.

J., () Nutritional diseases of South American camelids. Small Ruminant Research, 61, () Effect of nutrition on reproduction in llamas and alpacas.

Theriogenology, Sheep, Goats, Cervids, and New World Camelids. Author: National Research Council,Committee on the Nutrient Requirements of Small Ruminants,Board on Agriculture and Natural Resources,Division on Earth and Life Studies; Publisher: 中国法制出版社 ISBN: Category: Medical Page: View: DOWNLOAD NOW» Updating two previous National Research Council publications.

Effect of forage to concentrate ratio on comparative digestion in sheep, goats and fallow deer - Volume 64 Issue 1 - M. Ramanzin, L. Bailoni, S. SchiavonCited by: Felipe A. San Martin Howard has written: 'Comparative forage selectivity and nutrition of South American camelids and sheep' -- subject(s): Sheep, Feed utilization efficiency, Camelidae Asked in.

Protozoal diversity in the forestomach of South American camelids (SAC) was studied in eight llamas and six alpacas from the Parque Natural Condoriri ( to m altitude, Departamento La Paz. San Martín F. Comparative Forage Selectivity and Nutrition of South American Camelids and Sheep.

Ann Arbor, Univ. Microfilms International. Sumar J.

Details Comparative forage selectivity and nutrition of South American camelids and sheep PDF

La Llama, Recurso Genético de los Andes. Anales de la III Reunión Cientifica Anual. Asoc. Peruana Prod. Animal.

Description Comparative forage selectivity and nutrition of South American camelids and sheep EPUB

Lima. Thomas, R.B. Human adaptation to a High Andean Energy. 羊驼第一胃室与绵羊瘤胃固相和液相外流速率的比较. DOI: /   A comparison of the effect of forage type and level of feeding on the digestibility and gastrointestinal mean retention time of dry forages given to cattle, sheep, ponies and donkeys - Volume 95 Issue 1 - R.

Pearson, R. Archibald, R. MuirheadCited by: Overall in comparative studies, llamas and alpacas will consume more coarse forage (stems) than will domestic sheep - perhaps indicative of the dry season in their home country. During times of drought, camelids are able to adapt to their environment by reducing intake and decrease transit time of digesta (you do not see this type adaptation in domestic ruminants).

Forestomach motility in camelids has been described by several researchers. (Heller, ) In short, the South American camelid forestomach undergoes a more continuous activity than in ruminants.

(San Martin and Bryant, ) To provide a continual fermentation activity motility of. A comparison of voluntary intake and in vivo digestion in guanacos (Lama guanicoe) and sheep given fresh grass - Volume 67 Issue 3 - M.

Fraser, D. BakerCited by: 6. Revised by the original author, a recognised expert in the field, this edition includes additional material on nutrition and forage grasses. As South American camelids become ever more common in zoos, farms, and fields, and the problems of their health and maintenance become ever more pressing, this book will prove an essential tool for.

Download Book Infectious Diseases Of Camelids in PDF format. Medicine and Surgery of South American Camelids, Second Edition, is the only comprehensive camelids (llamas, alpacas, vicunas, and guanacos).

co-authored with Dr. Walter Bravo Additional information on nutrition and forage grasses More comparative data on Old World camels. A comparative study was initiated during the spring grazing season of to determine sheep and goat nutritional and production responses, as well as patterns of vegetative selection and utilization under the pastoral system currently employed in the Pre-Saharan region of southern by: 3.

Fraser, MD & Gordon, IJ () The diet of goats, red deer and South American camelids feeding on three contrasting Scottish upland vegetation communities. Journal of Applied Ecol – Cited by:   Interactions between sward diversity and forage selectivity of cattle and sheep managed within mixed grazing systems are not fully understood.

The objective of this study was to investigate the effect of either mono‐ or co‐grazing of sheep and cattle on swards differing in botanical composition (either diverse or grass‐dominated) on the Cited by: 5. The issue here is not necessarily a direct comparison of nutrient content of forages between North and South America, but adequately providing needed nutrients to maintain high productivity and health of the animals.

The critical issue relative to forage quality is the ability to meet a given animal's nutrient requirements with the forage.

Intake, selection, digesta retention, digestion and gut fill of two coprophageous species, rabbits (Oryctolagus cuniculus) and guinea pigs (Cavia porcellus), on a hay-only diet. Journal of Animal Physiology and Animal Nutrition, Vol. 95, Issue. 5, p. Cited by: Extension. Pregnancy nutrition and its influence on health, production and reproduction; Metabolic diseases and their prevention; Nutritional formulation and management of domestic animals – Dairy and Beef Cattle, Small Ruminants (sheep, goats, llamas and alpacas), and HorsesOccupation: Extension Veterinarian.

It is very palatable, both sheep and cattle prefer it to most other grasses. However, it is low yielding and tends to be short-lived, lasting only 3 to 5 years in most stands.

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It also heads out most of the summer while all other grasses, except the ryegrasses, head only once in May or June and all regrowth is. Plants utilized in the feeding of livestock have long been a fundamental link in the food chain. Native grasses supported grazing animals well before man began to domesticate livestock.

Forages have always been an extremely important source of nutrients in livestock rations. Additionally, they provide fiber in the ration which enhances proper digestion in forage-consuming animals.Two hundred eighty adult female alpacas (Lama pacos) and tui alpacas (young alpacas months of age) were grazed on a Festuca-Calamagrostis association at the South American Camelids Research Station, La Raya, Peru, during the dry season and early wet season of (June-December).

Vegetation was sampled monthly during this period for herbage yield by species. Fecal material from. For example at one extreme, we might find the suspended animation pertinent to a roe deer's embryonic diapause at the blastocyst stage (Lambert et al., ; Lopes et al., ) while at the other extreme, embryos of wild and domesticated South American camelids (e.g.

guanaco and llama), must exhibit an impressive degree of trophic Cited by: