l'l0S horus-bearin materials. S nthetic in redients A Sigiiificallt fékltufé 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'lb€I` of 3.l]21lyS€S 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 Wh€I'€ K€Htl1Cl(y f3.I'I'I1€I`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;;v»¤e». P"" • ’ ‘ · . . Q ·
· , as many samples analyzed in 1955. In 1946 each sam-   ` 5 .     ~  ‘ _.
_ ;_ _ V· " —*   . _ ` ‘ r _.
·   I`€pI`€S€I1t€d 3pPI`OX11Tl8.t€ly'   {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€ p€I` 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 ll1t€I1S1HC3.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.S€S 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
        ’-‘’-` ,*  ’ `— ,  “ -.   animal’s 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" ’- ··   ‘  pébg   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, -» ’ \;`~_~’~VVq»v‘  
  (         ca       ·"’    4 7
$1 4      `     e”t
Y .VgV _ A__.• » _4{TT"’_V_ Vrr_VVV _ V V _VV. __ M VV_V_. _.., ,,.1.,..1   .... . 1 . ..,..   Q-...   .r....   . .7 . I