000 022760000a22004570004500
911 _aXL1992700111
901 _aF08
902 _aL01
904 _aBCO
905 _aC
906 _a19920101
908 _aJ
909 _aAS
912 _aEN
912 _aEN
914 _aINTER
914 _aRISPAL
082 0 4 _a30016
100 1 _942707
_aAnderson, G.W.
100 1 _976525
_aHawkey, C.M.
100 1 _995843
_aMoore, R.W.
260 _c1985
041 0 _aEn
500 _aDat. num.; 7 ref. Sum. (En)
520 _aThe consumption of pine needles and the stripping of bark by sheep grazing annual pastures in three open stands of P. radiata and one of P. pinaster were measured. Needles were eaten inmediately after the sheep were admitted and this continued throughout the year. The estimated consumption was about 260 g/sheep/day for the P. radiata. Bark stripping then commenced and continued throughout spring and summer on most plots. In some plots at low tree density, bark was stripped from more than 35 percent of the trees. In denser stands, needle consumption per tree was less and bark was stripped from less than 5 percent of the trees. Bark damage was most common on the smaller trees, and severity of stripping was negatively correlated with tree size. Of all the trees with bark damage, 22 percent of the P. pinaster and 14 percent of the P. radiata had more than half of the stem circumference stripped. A number of these will probably suffer both stem distortion and growth retardation, and some may die. Methods for reducing the incidence of bark damage are discussed
650 1 4 _9164925
_aSISTEMAS SILVOPASTORILES
650 1 4 _9158539
_aPINUS
650 1 4 _9156961
_aOVINOS
650 1 4 _9135304
_aALIMENTACION DE LOS ANIMALES
691 _9158539
_aPINUS
691 _9164500
_aSHEEP
691 _9135978
_aANIMAL FEEDING
692 _aPINUS
692 _aOVIN
692 _aALIMENTATION DES ANIMAUX
773 0 _tAgroforestry Systems (PaĆ­ses Bajos)
_d1985
_gv. 3(1) p. 37-45
040 _aCR-TuBCO
_cCR-TuBCO
_bEs
245 1 0 _aPine needle consumption and bark stripping by sheep grazing annual pastures in young stands of Widely spaced Pinus radiata and P. pinastes
942 _cANA
003 CR-TuBCO
999 _c43657
_d43657