This report provides condensed summaries of research projects conducted by researches at the University of Minnesota

Hanke, H. E.

Jordan, R. M.

Rempel, W. E.

Singh, B.

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South Dakota State UniversityOpen PRAIRIE: Open Public Research Access InstitutionalRepository and Information ExchangeSouth Dakota Sheep Field Day Research Reports,1967 Animal Science Reports1967Minnestoa Sheep Research NotesR. M. JordanUniversity of MinnesotaH. E. HankeW. E. RempelB. SinghFollow this and additional works at: http://openprairie.sdstate.edu/sd_sheepday_1967This Report is brought to you for free and open access by the Animal Science Reports at Open PRAIRIE: Open Public Research Access InstitutionalRepository and Information Exchange. It has been accepted for inclusion in South Dakota Sheep Field Day Research Reports, 1967 by an authorizedadministrator of Open PRAIRIE: Open Public Research Access Institutional Repository and Information Exchange. For more information, pleasecontact michael.biondo@sdstate.edu.Recommended CitationJordan, R. M.; Hanke, H. E.; Rempel, W. E.; and Singh, B., "Minnestoa Sheep Research Notes" (1967). South Dakota Sheep Field DayResearch Reports, 1967 . Paper 18.http://openprairie.sdstate.edu/sd_sheepday_1967/18Minne sota Sheep Re search Note s The fol l ow ing 9 i tems are conden sed summa r i e s  o f  re search proje cts c ondu cted re cent l y  by Un ivers ity o f  Minne sota re se arche r s  R.  M .  Jordan , H .  E .  Hanke , w .  E .  Rempe l , B .  S ingh , G .  c .  Marten , and f .  D .  En f i e l d . 1 .  Cro s sbreeding i n  shee p  resul ted in an average i n crea se o f  8% i n  we aning we ight o f  l amb s at  1 00 day s  o f  age . 2 .  Her i tab i l i ty o f  ewe productivity tend s to de cre a se w i th the ewe ' s  age , so re cords o f  younger ewe s shoul d  re ce ive more empha s i s  in  se l e ction programs tha tn records o f  o l der ewe s .  Lamb s fed suppl ement s  conta in ing urea ga ined dec ided ly sl ower duri ng the first 2-3 weeks on feed tha n did l amb s fed suppl ements  w i th soybe an mea l . There a fter , the we ight ga i n s  were equa l . The on l y  advantage o f  urea­conta in ing supp l emen t s  for  l amb s is  tha t they cost mu ch less  than o i l seed mea l s  su ch a s  l in seed or soybean me a l . A formu l a  conta in ing as  much prote in equiva l ent  as soybean mea l  can be made w i th 84% ground corn , 1 4% urea , and 2% d i ca l c ium phosphate . 3 .  Dehydra ted a l fa l fa addit i on s  to l amb rat i on s  were advanta geous when compared w i th rat i on s  conta in ing l ow qua l i ty forage s but had no advantage when c ompared w i th high qua l ity ,  green a l fa l fa hay . 4 .  Steam rol l ed ,  c o l d  rol led , or who l e  bar l ey were not equa l in  feed value to she l l ed corn when fed to  fattening l amb s . Lamb s fed who l e  barley ga ined as  ra pi d l y  and e f f i c i ent l y  as  tho se fed steam or c o ld rol l ed bar l ey . Pe l l et i ng barl e y  o f  three d i f ferent bu she l we ights  ( 52 , 45 , or 35 l b s . per bu she l ) re su l ted in  l e s s  g a i n  than when l amb s were fed the re spe ct ive barley a s  whol e  gra in .  When fed a s  who l e  gra in , he avy barley wa s superior to  pe l l eted heavy barl ey c 5 .  Pou l try l i tter bu i l t  on wood shaving s  conta ined 85% dry ma tter , 1 5 - 18% prote in , stored we l l , and when mixed w ith equa l we ights o f  ground corn , it wa s c on sumed readi l y  by ge sta t ing ewe s .  Wool and l amb pro ­duct iv ity were not adverse ly  a f fe cted when pou l try l i tter wa s added t o  ewe rati on s . 6 .  Gra z ing ewe s do n ot need a s  much forage a s  they des ire . Re ­str i cting forage cons umpt i on , by l imit ing the t ime ewe s  are permi tted to gra ze to 50% of norma l ,  i n crea se s the carry ing ca pa c i ty of oa t s -rape ­pa sture more than 1 0�. The ewe ' s  wool and l amb produ ct i on are n ot redu ced . 7 .  Dry l ot feeding o f  ewe s  dur ing summer wa s a ccompl i shed w i th a s  l i tt l e  a s  2 l b s . o f  a l fa l fa -bromegra s s  hay per head da i l y .  Thi s  amount 100 - 2 -ma inta ined ewe s in sati s factory condition and at a co st comparable  to what would have been enta i l ed i f  ewe s had been on pa sture . Drylot feeding simpl i fies  the prob lem o f  water ava i l abi l i ty ,  reduce s para site problems , and minimize s the amount o f  fencing required . 8 .  Lambs can be weaned at  8 weeks o f  age i f  they then go on a l fa l fa ­brome-grass  pa sture . In each o f  three tria l s , l ambs weaned at 8 weeks and p l a ced on pa sture ga ined more rapidly than l ambs weaned at 12 weeks o Both 8-and 12-week weaned l amb s  ga ined signi f i cantly  fa ster when they were se l f- fed ground corn in addition to pa sture forage . 9 o Eva luation o f  l amb carca sse s  should be done with caution unle s s  carca s s  we ight i s  he l�  constan� due to  the high a ssociation o f  various carcas s  tra its with carca s s  we ight . 1 01 

Minnestoa Sheep Research Notes

https://openprairie.sdstate.edu/cgi/viewcontent.cgi?article=1017&amp;context=sd_sheepday_1967

Minnestoa Sheep Research Notes

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