V       { S g_V_-.  ¤     ing 80 percent roughage the lollowing eomlusions
-— vs . _   ‘ A V _       A       `      may be set forth:
p- C     QV     _ __;   Q. `_   1, Supplemental protein aml carbohydrate above
. V •*· ...;     .:.k _ _,».   .a · V Q.  2 . . . . ' .
_   ’’=`·   ui __-   {     ··V,   the requtrentents lor maintenance dtd not nnprove .
-6 , ` `“ i the utilization ol the low-quality timothy hay.
t ‘ -     , ».t,__ _   ‘· Z 2. Neither dtsttllers dried solubles, live veast nor
 `     H  Wit-    e l. i` ‘   allalla ash improved utilization ol any ol the three
· .·     1:. ‘.¢......;. .... V..~»: ?   _-·.»   ;;,;   -¤V’= -     l- .     I   N ‘ * . '
7 I _,__l _ ’._Vl   sa low-quality roughages (cormobs, cottonseed hulls aml
4- ~   .»      _.(__`°;___‘; i;1_;;;-%-.,.4 low-quality timothy hay).
"   »*l’l’ `"’`l‘»   ._·: ???f1i‘ *;» X ,V... 3 . _ . ‘ . . . . .
· ’·=· *     ''‘.`'`` i     ..,   ··l* . ’.··' ` ‘»`» V :l. l)1g€$[ll)1lll\' ol corncobs was not nnproved bv
"”°' V V   ,.,._     · _ supplementing rations with allalla ash or a trace
.     V     =». _..·.     g    V‘`—»   i . . .
b ‘   V‘ V.·» 5           ·   .v Nj Illll]€l`2ll llllXllll‘€.
V V · -:_-__ V; . ;-      ;j=-sg;-;_  w- ‘ L VV__   .]_ lm-y·g;tsiug the starch content ol a c`ol‘ll<‘<>l) l‘1lll0ll c
V ‘   »·_-V.   ,   `; =  V__V_ _ _VV_ _     decreased the digestibility ol the hbtous pottton ol V
,,, - V i a.VA- T ’     °--si :.. . `’’‘  g-#g i*;ji  ‘°‘‘:-- _;   corncobs. W he comhtion was alleviated by the addi-
V V c i               tion ol allalla ash or a trace mineral mixture.
- —   .   ·,,v, ‘ .      ’
. . . . . . . lt was apparent that the mineral needs ol the runn-
These individual sheep teeders are used lor lattenmg aml _ _ ,
I- ,. ·b·l- ,   1. nant led a low-quality roughage was increased by sup-
4 c igesu 1 lt} nt.: s. _ _ _ _ _ _ _
plemental energy. l·or maximum elhetency ol ingested
  p . -   ---1 ____>_ I   .__V_   -V-—.V   _V_.   ‘_V__   V.-» nutrients in a lattening regime, the mineral intake
. “    `'*‘. J Z     i     ' must be adequate aml balanced.
- V It     V»· . A   EE  
-=-=-   ·   r  ll     . . . . .
° ,,--     l ‘   Fattemng and Maintenance Rahons Plus Additives
5 `   °‘‘‘ i   ;|     A ...... A-\dditives such as antibiotics, diethylstilbestrol aml
" it ___(  °_e° T `‘‘i   ‘‘‘‘’‘‘‘‘ i   'l`orula yeast have been a much worked topic in rttmi-
i     .. `*Y =```'   ’ N   -—"°" `'`·` ‘   V·‘;i   ‘ - · _ _ _,
V ;VV    _V-V     `"Vr;°=·`   V    ‘»’‘‘ ¤   F nant ntttrttton the past tlnee \’€rll>.
Vt .. _ .--- -         _   > EF     F? , , . . . ’ .
it V I  “ li;          ·-   lhe lollowmg observations may be made lrom the
  V~‘ .   -  V; i "’         .»=     - . V ·
4.} ‘   r       f ‘¥ »`-=    @-5;   Q   gg numerous lsentuckv trials which have been conducted
V  ‘         = < ’·‘`·   .     _     . . ‘ . . . .
A _      .. "’*"i   ‘   ‘t»‘     with sheep led maintenance aml lattetnng rattons.
V gp       ‘   ··-=     ; V g sa V _ _ _ _ _ _ _ , ,
V; ‘   i`’‘         lhe utilization ol a maintenance ration containing
VLM       -   ,_   A   80‘Q, corncobs was: (I) signilicantly decreased by sup—
` ‘     .V.V  V-     p|(·m;;·ntal aureomycin or aurolac 2.\ (5 <>l‘ lll lllg lll
’  ·i·-* ‘· V'=°` ’;·;.=;g __ ·- —g· .~. .,2..:,  ` , _ · . _ * _' ' _ 4)
  __:(__(_:)__ -:   ‘   p Lllll€()lll)’(`lIl—l"l(.l pet pound ol tation), and (2) not .
*·v · .,;. .   ·=·— 1     -,[_ _;._ if"`   allected by supplementation with 2.5 or 5.0 mg die-
‘ V » F       (Continued on page r)
‘ · .  2;%;.  _
TK) · · I I ‘   ..,V.     -  ,, -~~-   V
Sheep metabolism crates hemg used lor nutrient balance A; _ V
aml digestibility work.   1 ’ _
. . . . . . .   MV il       -3
V tenance aml lattennig rations is nnportant to the live-  _ ,.V A (,v, , _   i   l i
V , . . . . . `V   Q  TM,. Y     tv V ' '
stock economy ol lsentuckv. lhe .\nnnal Nutrition _     *   ··—’ V  ,»*~’
* _ · _ _ V V eg ._..   V   ‘   l`t>l)€l` stl])[>l€lllClllLlll<>ll. llilll`C'€ ` i   i /  vi [Xi   V   VA/A
_. low-t ualitv ron shares have been extensively studied i i   .V " »’V  
. l . g . . V E. /1. .  
—corm·obs, cottonseed hulls aml timothy hay. lixperi- i l V Y  ```'` ` -· ` `   'V W4;
mental results have shown that the librous portion,      
_ that portion containing energy in the lorm ol complex , sr V-\ Q /- _  
car|>