PIG REARING.

Dominion, Volume 6, Issue 1713, 2 April 1913, Page 10

PIG REARING.

THE SOW AND MR OFFSPRING. . . .-The auostion is not infreqii6^lyi\'s§kit 1 ' , by pig. a&\ 'V- P eir ' y°4 n t r ?..-; liO ' Ivnbit, -sayn -uu ex- ; . change, is jiot' -.asv'lins ' sometimes been supposed, „duc .'.vicious .tendencies , on the pait of an individual, sow; it is ; ;. ' capable of scientific .explanation, and the ; : V the Kinds of .the breeder— • i ll ' it l " lnn i arit y eases; ftt least? Siateil : ' V ' - ! , r }vv' itself • simp- -, ; . iy ,to _ a lack of phosphorus' l in tho food .co-iistitii&iits- Nahmv provides' a pig :<K®}iiig into, tho world in a normal state -Tit le ?. ii i ll <™">.nnisclcs, skin; and hair. : i it -H.' 11 ® 11 he'principal elme'iit'-used in Anil phosphorus are chiplbyed , lit v the construction ofbonciiCo'h'se- .; • qiiontly, the 'soiv.must"'fiSve.'insufficiency 0C .: ."{.'these constituents.lf: sho.vis noti'siipplied with sufficient ■* lilbumdn - slife* 'will farrow pigs / deficient in • muscle «"!l without hftii;; if v her ;-~ ..'■. ' food.is deficient ;m;, limej'''tho ''toft •/.*» '. nnd;sine\ys of hcr.offspring'will be.sniall,;b\i t"i f -ph'ospjioi'us iVwfthtirig'lMturb'hiW : .. . mode-provision Tvkt}reby,''ta-' a "inu^li • 'greater extent ; than ''obtains iif joth'er''tlo'>,v.;;..uiestio" anirpals,'" this'' element''' is,'; taken ,11:0111 tho' tissues 'of the so'w;-nnd supplied - , to * the "unborn pig. • "-This; dStriic'tiOn-"of! ■, phosphorus from the.tissues of the mother '": develops in .her a. oraviiig! for food' that is rich in this .ingredient;" and the\,'in'- ■ tensity of the craving increases'in;ie'xact- ; ■■■'• : iy.'the: proportion to. which the',,mother has-.been- -robbed'iin order .-to; satisfy ■ tie ' ■; needs of her .offspring.., f m '. | . Only about I'' per.', cent,of. phosphorus • is-Ucquired -'Coimpared.-.with .other con-. ■ s>tituents, [ ,hut,this ,'is .'of such,, vital inij, ' ' portance that' av-slight ('reduction bslo.jy ; ' the,pmeritage necessary is .soon: followed i 'by a.serioha impairment of;the health of ;.' the animal. A : sow -that, has- a - fairly ' vV : large;hi))omit of fx-tocloiiiTAvillliisii^Clly 'iintl 1 >;•, ..'.enough, - phosphorus-bearing food' "in ,'tlie , .paddocks to. satisfy her Wants;', but.'.if . (-lie .is confinctl in iier. pen ."slio isf'at'tjip . nicj'c.v of her .attendant,' .who;', if lie ha's'-a practical knowledge; ,'ctf J thi>!principles r 'bf '; feeding,-' wilt- supply" the.rnc6fe?&i'y"phi>>ji ' phates artificially.. \Tf ' hehas not .tlie' . ' :\v lxeegssnry iknoivJedjfC,".. anil',, fails" iii',"his, duty in ;this respect, the craving for plios- ':; ' . phate.s_.at the tiiqo the sow, is'due ; tO( far-, : , , row_ will amdiiut atniost .to >' r addition ,to this,: a feverish :cbndi- . ' ;v tion has •. hcat-prpdiiciiig fQods.'' , '.siich' «S , I bariey,'' her s\ ..■ . condition, nporoaches .deiiriuinj' and- -t!ie. ; : law ':bf'"-'self-presefyatio'n' the'n'i dyerrides' ■~:-jliiiiternal affection • to; such an extent'that : pliC. .is ready to devour, aiiything tHat"lier : instinct tells' her' contains what'.'h'iSr.'owh' :.. . - system recjiiires. Even, whertfithe-' 'sow has plenty of freedom it may. be.that.,the ' ;• soils are deficient' iii'.the necessary fjhgrtdient, in .ifjiich caso thc.'.crops grown on,, it. w'ill-rilso: bo .wanting.'.' .l*his point that should be l earchillv watched, : ; ""d breeders in such a; district would' re- ; quire to .supply some' food' containing ' a' :r ; :: large percentage of •ph6sphorib'.'acid:'.T--It . has to.-.be ; remembered, -however,-'-tlili pure acid is highly :poiS6nous; :«nd is very -unsaferfor ittio unskilled to :' liandle;. whoit combined -■ ever, it is known as phospbato of lime;; and can bo used.to good advantage, with ', comparative safety. . The:best way, liow- '• f ever,, is to secure foods ithat are rich in this constituent, among which bran ■is probably tho best. -Peas and wheat, too; .. 0; , 1 ti.ro .rich in phosphorus/, though,';tlie lalfc'r-. ', IS; ratherjow in 'albumen, .and :?9 therefore, not a grst-classifobd- foiybrbod sows!.'.'' ir