000			03199naa a22004577a 4500
003			CR-SiIICA
005			20200203203810.0
006			a|||||r|||| 00| 0
007			ta
008			920101e cr |||||r|||| 00| | eng d
040			_cCR-SiIICA
041			_aeng
090			_a636.084 M864 c.3
100			_996761 _aMorley, F.H.W.
245			_aGrazing animals
260			_aAmsterdam (Países Bajos) _bElsevier _c1981
270			_aCIDIA, Turrialba (Costa Rica)
300			_a411 p.
440			_9171511 _aWorld Animal Science (Países Bajos) _v(B1)
520			_aThis volume presents chapters by people who, whilst knowing a great deal about special aspects such as desertification, digestion, or animal and plant nutrition, also understand, and have worked with, some systems of animal production from grazing. Sufficient has been written here to illustrate and inform readers of the applications of the principles of plant and animal sciences to the improvement and maintenance of grazing systems, and to the production of animals from them. In addition, animal behaviour is discussed, and also problems and possibilities of grazing in deserts, the arctic tundra, public parks, forests and improved tropical pastures. The management of systems, including those based on highly improved pastures in both tropical and cool temperate regions of the world, is considered in detail. Three groups of chapters are presented. The first six, are concerned with the components of grazing systems. The emphasis on the plants that are grazed is important for an understanding of the production of animals. The emphasis on animal behaviour and intake is necessary since these largely determine animal performance. Chapters 7-12 are discussions of the ecology and use of pastures of environments ranging from the arctic to the equator, and from tropical rain forests to deserts. The remaining chapters are concerned with the manipulation and management of resources in systems of animal production from pastures. These range from selection and improvement of pasture plants, the use of fertilizers, drought management, and the role of detrimental substances in plants. A chapter on computer modelling and simulation of grazing systems was included. The final chapter is an attempt to integrate much of the information from preceding chapters, and to suggest ways in which this could be used to develop efficient systems of production. The book is intended not only as a general review of the biology and management of grazing systems, but also as a text for students of agriculture and veterinary science
690			_9148417 _aFORRAJES
690			_9160237 _aPRODUCCION ANIMAL
690			_9135304 _aALIMENTACION DE LOS ANIMALES
690			_9164865 _aSISTEMAS DE PASTOREO
690			_9145076 _aECOLOGIA
690			_9153777 _aMANEJO DE PASTURAS
690			_9155129 _aMODELOS DE SIMULACION
901			_aF01 _b14799
902			_aL01
903			_aE
904			_aIICA
905			_aC
906			_a19920101
907			_aCIDIA, Turrialba (Costa Rica)
908			_aB
909			_aMS
914			_aEXTRA
914			_aRISPAL
942			_cSER
942			_cIMP
999			_c17699 _d17699