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7 > Image 7 of Kentucky farm and home science, vol. 2 No. 3 summer 1956

Part of Kentucky Agricultural Experiment Station

l'l0S horus-bearin materials. S nthetic in redients A Sigiiificallt fkltuf of this pf0gfalH is the S d vt y . . . such as urea require Speeial g_Hg_lySiS_ \V1tl] Wh1Ch 3 l3.I`g l1L1I'I'lbI` of 3.l]21lySS 31' ITl3.d klfld Y Net only has the task Of Chemist in the lebetetety reported. Samples are brought into the laboratory the ._ been com heated b the Val-tet and Cem lexjt ef week they are taken. It is customary to analyze them I P Y Y _ t- the items included, but the {act that the volume ef and by the end ot the second week send a report to A . . . . 4 business in the feed 1ndustr has increased to the . ~ _ (Contmued on page 8) V ~ pOlUlC WhI' KHtl1Cl(y f3.I'I'I1I`S l'lOW pL1I'Ch3.S IT1OI` ` than 500,000 tons per year has meant a corresponding Vi., __ V .3 V V V increase in the number of samples handled. A look at , ` ., V l I i K the number of sam les anal zed in 1955 com ared ii ` ' l M P Y _ _, ~ with 10 ears earlier in 1946, shows over three times V _ ~`_. V_ y J y y 7 .,r, ;.*.tr."z;;ve. P"" . . Q , as many samples analyzed in 1955. In 1946 each sam- ` 5 . ~ _. _ ;_ _ V " * . _ ` r _. I`pI`SI1td 3pPI`OX11Tl8.tly' {ODS of feed. Il] wr?. y V. . I 1955 each sample represented approximately 190 tons V V ,p__ _ Q ( eg " , I V , of feed. Even the number of samples does not tell ` 1 9 the whole stor as the number of anal ses made for _ T t, Y _, ..._,, .. rt . dru s vitamins and minerals has meant that the num- e _ Vt eV ~ ` , Q > tw __ _ _ __ V *7 l)I' of 23.112-11}/'SGS Hl3d pI` S3.IIlpl 113.5 lTlOI' than ,.j&~` .7~LF~Li if V ' .V doubled during the same period. Handling this larger `" L 1 ' *: number of sam les and the ll1tI1S1HC3.t10f1 in the anal - E . . . { P Y V_ VV tl _ sis work accompanying it have been possible by if 3"{;;< Y? _ . . . . ( . . ~ ` ' ,` \ . . ` f a streamlining, putting in product1on line methods and . as., - ; _. * greatly increasing the size of the units of chemical . __,.,._V_j "" Ms; 2* &IppE11'3.tUS 3.11d qUipIT]I]t Ellld SOHIB ll1CI`3.SS 111 ~ A/jj ~~ { _ laboratory personnel. . ( . . ,...a.,a,e %_ ~??%',;*r ` "V 1~<*. :.. T * ff ~ e `_:_V T ViV,.VV ;- V g - j__V (above) Does a feed contain \ l' the guaranteed amount of : ._ 3,; ia ,; , e 3 ~... . . z3 .;r_ i s M at : mrotein? uices secreted b an .r #S;e;e4%1 #!:~ . =;# [ t , l Y --` ,* ` , -. animals glands flow into its V . stomach and are largely re- . ? ` _ 3 ` 1 ` 7% s >0nsible for the natural di- .. . r ~w*r;; ; V . al I . . . g rfgya. , gf .; ~.r_ , A, * _ ;, V gestive process. A similar pro f _ VVjV " ;; T V . Ve, V cess is followed in the labora- _ at ~~~~y' _V _V V,_/ 1 V35 _`~ i V lp1_ j __ V_ - tory to determine the amount F; *liZ"j"j V , Z; _- A -_ of protein in a feed sample. Rl 1 i I .. . A'; E P. n _i` Q ii`ri il 2 A 1><>i<> of the Samlllc is . _ _ ` i " . "ii tf i _ I $t ZZ ? i E treated with an acid to form . . ~ Q \` .*V;==. er * _ 2%% . * 1 ~ g g, W ., V VV {ct * - . a substance which, wh en . I . '..e 4`*. i " `' ` = measured enab es the tech- '- Y1 . < ~ tt . . -. ` # . l` a * ` _ ,.{` L Vg _. Ft g; sl nician to d e t e rm i n e the r E ` i ~; ( ( ( ( : "' f " ` hg j~V_ E9 FYSYVCP ? ni; V- ' Vjgiiil , - . + 9:*. ,1 iii. # "`.. V li.-$$2* V C} . I V; * V `VV (af iM` VV Uri; I I . . * t I . l' VV?' ,;;VV A VE" ,] $3 - x .. "~ x, i t ' a . < . . " . <>- . V - w: s; tt., . . # rl 'l e v.-- # 1 . . t qs.; i" _ V _; ` =_` . VV V Vi *** . Je * (left) To determine the fiber V?g_j;,V - .;s { ' Vt" - pbg content of a feed, the "double V " t _ VV V 2. g l,4.;t V; *33 . (ilgCSll()ll process is used. The ., ` ?" .V { 4 _ residue remaining is the non- , , VV nf V ` . _ . digestible portion of the feed. Ta; . _.. H 'V i V 1 . t { { I 9 -. Y egjjg-_: n V V ..4 t y - It must n o t e x c e e d the `` `_ " 0 tj lv "* . .. the \5 *_ amount stated on the ta r. . y: is x x` V 2 _ uv - . 1* S V 3- - - 55,..,; y T"` M - { '` tj ` `\ t * gh I , L __ V , . 5, - \;`~_~~VVqv ( ca " 4 7 $1 4 ` et Y .VgV _ A__. _4{TT"_V_ Vrr_VVV _ V V _VV. __ M VV_V_. _.., ,,.1.,..1 .... . 1 . ..,.. Q-... .r.... . .7 . I