EurekaMag
+ Translate
+ Most Popular
The pigeon tick (Argas reflexus): its biology, ecology, and epidemiological aspects
Prevalence of hemoglobin abnormalities in Kebili (Tunisian South)
Lipogranuloma: a preventable complication of dacryocystorhinostomy
Value of basal plasma cortisol assays in the assessment of pituitary-adrenal insufficiency
Bees from the Belgian Congo. The acraensis group of Anthophora
Placing gingival retraction cord
Total serum IgE, allergy skin testing, and the radioallergosorbent test for the diagnosis of allergy in asthmatic children
Acariens plumicoles Analgesoidea parasites des oiseaux du Maroc
Injuries of terminal phalanges of the fingers in children
Biology of flowering and nectar production in pear (Pyrus communis)
Das Reliktvorkommen der Aspisviper (Vipera aspis L.) im Schwarzwald
Hydrological modelling of drained blanket peatland
Pathologic morphology and clinical significance of the anomalous origin of the left circumflex coronary artery from the right coronary artery. General review and autopsy analysis of 30 cases
Cyto genetic analyses of lymphocyte cultures after exposure to calcium cyclamate
Axelrodia riesei, a new characoid fish from Upper Rio Meta in Colombia With remarks concerning the genus Axelrodia and description of a similar, sympatric, Hyphessobrycon-species
Favorable evolution of a case of tuberculosis of pancreas under antibiotic action
RIFM fragrance ingredient safety assessment, Valencene, CAS Registry Number 4630-07-3
Parenteral microemulsions: an overview
Temperate pasture: management for grazing and conservation
Evaluation of a new coprocessed compound based on lactose and maize starch for tablet formulation
Thermal expansion and cracking of three confined water-saturated igneous rocks to 800C
Revision of the genera of the tribe Stigmoderini (Coleoptera: Buprestidae) a discussion of phylogenetic relationships
Anal tuberculosis. Report of a case
Gastric tuberculosis in the past and present
Adaptive responses of the cardiovascular system to prolonged spaceflight conditions: assessment with Holter monitoring

Effect of concentrate supplementation on herbage intake and live weight gain of sheep grazing a semi-arid grassland steppe of North-Eastern Asia in response to different grazing management systems and intensities


Effect of concentrate supplementation on herbage intake and live weight gain of sheep grazing a semi-arid grassland steppe of North-Eastern Asia in response to different grazing management systems and intensities



Livestock Science 165: 157-166



ISSN/ISBN: 1871-1413

DOI: 10.1016/j.livsci.2014.03.026

An increasing human population and growing demand for food of animal origin intensified livestock production and lead to overgrazing and desertification in semi-arid grass lands. Strategies for sustainable livestock production that protect steppe vegetation and satisfy farmers economic interests are strongly needed. This study analysed the effects of a moderate concentrate supplementation on organic matter digestibility (dOM), organic matter intake (OMI), metabolisable energy intake (MEI), and live weight (LW) gain of sheep grazing at different intensities to evaluate its potential contribution to profitable livestock production at conservative stocking densities (SD). In 2010, a grazing experiment was conducted in the Xilin River Basin, the Inner Mongolian steppe, China (E116 degrees 42' N43 degrees 38') using 337 female Mongolian fat-tailed sheep (30.2 +/- 4.3 kg LW). The effect of concentrate supplementation was tested in two different grazing management systems and six classes of herbage allowances (HA). While experimental plots had only been used for grazing in previous years in the continuous system, grazing and hay-making had been alternated annually on plots of the alternating system. The SD ranged from light to heavily grazed with 2.1-10.3 sheep/ha and were adjusted every month to maintain similar HA across the grazing season. Four sheep per plot received 250 g/d of a corn-wheat-based concentrate feed (SUP), while four non-supplemented (NSUP) sheep were used as control. Faecal samples were collected on five days each in July, August, and September. The dOM was estimated from faecal crude protein concentration and faeces excretion quantified using the marker titanium dioxide. The animals were weighed monthly to determine daily LW gain. The dOM was higher in SUP than NSUP sheep (0.557 vs. 0.533, RSD: 0.016). As a consequence, daily OMI and LW gain of SUP sheep (74 g/kg(0.75) LW; 121 g) were higher than of NSUP sheep (68 g/kg(0.75) LW, RSD: 6.4; 86 g. RSD: 24.6) despite a decrease in herbage OMI of 0.41 g per 1 g concentrate feed. Grazing system had no influence on dOM, OMI, or LW gain of sheep. The effects of supplementation were independent of HA class, and OMI, herbage OMI, MEI, and LW gain were higher in the beginning than in the end of the experiment. Moderate concentrate supplementation to grazing sheep strongly increases LW gain of individual animals and might offer a valuable contribution to increase individual productivity, maintaining the output per area at lower SD. A reduced herbage OMI alleviates grazing pressure and can thus maintain long-term grassland productivity.

Please choose payment method:






(PDF emailed within 0-6 h: $19.90)

Accession: 066285920

Download citation: RISBibTeXText

Related references

Impact of grazing intensity on herbage quality, feed intake and live weight gain of sheep grazing on the steppe of Inner Mongolia*. Journal of Agricultural Science 152(1): 153-165, 2014

Effect of continuous v. daytime grazing on feed intake and growth of sheep grazing in a semi-arid grassland steppe. Animal: An International Journal of Animal Bioscience 6(3): 526-534, 2012

Effects of rotational and continuous grazing on herbage quality, feed intake and performance of sheep on a semi-arid grassland steppe. Archives of Animal Nutrition 67(1): 62-76, 2013

Impact of grazing intensity on herbage intake, composition, and digestibility and on live weight gain of sheep on the Inner Mongolian steppe. Livestock Science 124(1-3): 0-147, 2009

Animal responses to herbage allowance: Forage intake and body weight gain of sheep grazing the Inner Mongolian steppe - Results of a six-year study. Journal of Animal Science 94(5): 2059-2071, 2016

The manipulation of herbage allowance and live weight growth pattern of beef cattle and the use of concentrate supplementation in high output grazing systems. Animal Production 32(2): 358-359, 1981

Nutrient intake and utilization by range managed sheep in critical physiological stages maintained on grazing with concentrate supplementation in a hot semi-arid environment. Asian Australasian Journal of Animal Sciences 13(9): 1228-1234, 2000

Concentrate supplementation of grazing dairy cows. 1. Effect of concentrate intake and herbage allowance on herbage intake. Grass and Forage Science 39(1): 59-66, 1984

The effect of herbage mass herbage allowance and concentrate supplementation on the herbage intake of grazing dairy cows in spring. Animal Production 40(3): 531-532, 1985

Herbage intake of grazing dairy cows 2. effect of herbage allowance herbage mass and concentrate feeding on the intake of cows grazing primary spring grass. Irish Journal of Agricultural Research 25(1): 41-52, 1986

Effect of levels of concentrate supplement on live weight gain and carcass characteristics in sheep on restricted grazing. Asian-Australasian Journal of Animal Sciences 11(1): 17-20, 1998

Feed Intake and Performance of Sheep Grazing Semiarid Grassland in Response to Different Grazing Systems. Rangeland Ecology and Management 67(2): 145-153, 2014

Dietary selection of sheep grazing the semi-arid grasslands of Inner Mongolia, China at different grazing intensities. Journal of Animal Physiology and Animal Nutrition 94(4): 446-454, 2010

Concentrate supplementation of grazing dairy cows 2. effect of concentrate composition on herbage intake and milk production. Grass and Forage Science 41(3): 229-236, 1986

Prediction of herbage intake and live weight gain of cattle grazing tropical pastures from the composition of the diet. Agricultural Systems 2(3): 199-208, 1977