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NATIONAL FFA DAIRY CATTLE EVENT
SIRE SELECTION PROBLEM No. 2
Situation: Semen from these four bulls has been purchased. The bulls were selected to improve the next generation of this herd. RANK the four bulls as they best meet the following objectives in mating with the cow described below. This herd owner has a purebred Jersey herd of 394 cows in which production and type traits are emphasized equally because many off- spring are sold through consignment sales. Milk is marketed for cheese production. The main type traits emphasized are udder support and attachments plus correct structure “(including stature). Current rolling herd average is 18195M,85OF and 690P.”
COW TO BE BULLS TO CONSIDER
MATED
CURRENT TRAITS 1 2 3 4
RECORD (2yr 10mo ME)
RPT 87 86 84 95
20560 MILK 2064 2070 1688 2068
4.5 FAT % -0.14 -0.3 0.5 -0.14
934 FAT 75 49 87 75
PROT$ 264 263 250 242
3.8 PROT % -0.05 0.01 0 -0.12
781 PROT 70 80 64 59
CY$ 279 290 270 243
PTI 315 346 324 311
LINEAR SCORE
38 STATURE -1.3 1.7 4.6 3.1
32 STRENGTH -0.3 1.7 2.8 2.1
33 BODY DEPTH 0.5 2.3 3 2.6
20 DAIRY FORM 3 4 4.7 5
25 RUMP ANGLE H2.6 L. 1 L3.4 L2.6
26 THURL WIDTH 0.3 1.7 2.2 1.9
29 REAR LEGS S2.1 P.4 S0.1 S0.5
21 FOOT ANGLE Ll.0 S1.2 S0.4 S0.7
45 FORE UDDER -0.2 1.7 0.1 0.7
38 REAR UDDER HT 1.6 3.3 2.9 2.9
36 REAR UDDER WD 1.8 3.5 3.7 3.8
33 UDDER CLEFT 0.3 0.4 1.3 2.1
38 UDDER DEPTH D2.2 D1.2 D1.5 D1.4
14 TEAT PLACEMENT C.9 Cl.9 C1.1 C2.5
26 TEAT LENGTH L. 8 L2.5 S0.2 S0.5
“RUMP ANGLE (H-HIGH, L-LOW) ‘ REAR LEGS (S-SICKLE,P-POSTY),”
“FOOT ANGLE (S-STEEP, L-LOW),- UDDER DEPTH (D-DEEP, S-SHALLOW);”
“TEAT PLACEMENT (W-WIDE, C-CLOSE), TEAT LENGTH (L-LONG, S-SHORT)”
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UDDER DEPTH:lowest point of udder floor relative to the hock
FORE UDDER ATTACH- MENT
REAR LEGS,SIDE VIEW:
angle (set) to hock joint RUMP ANGLE:slope from
hooks (hips) to pins STATURE: Measured at
point midway between back bone and hip
50 7” or more above hock 45 6”above hock 40 5”above hock 35 4”above hock 30 3”above hock 25 2”above hock 20 1”above hock 15 At point of hock 10 1” below hock
5 2” below hock 1 3” or more below hock 50
45 Extremely snug & strong attachment
40
35 Very strong attachment 30
25 Intermediately strong attachment 20
15 Loose attachment 10
5 Very loose attachment 1
50
45 Extremely sickled in hock
40
35 Slightly sickled in ho ck 30
25 Intermediate set in hock 20
15 Nearly straight in hock 10
5 Posty and straight legged.
1 50 Pins 5 _”lower than hips 45 Extreme slope
40 Pins 3 _”lower than hips 35 Moderate slope
30 Pins 2 _”lower than hips 25 Slight slope
20 Pins _”lower than hips 15 Pins level with hips 10 Pins _”higher than hips
5 Pins clearly higher than hips
1 Pins 2 _”higher than hips 50 60”
45 59” Extremely tall 40 58”
35 57” Tall 30 56”
25 55” Intermediate 20 54”
15 53” Short 10 52”
5 51” Extremely short 1 50”
UDDER CLEFT: depth of medial cleft @ lowest point of the udder
DAIRY FORM: openness and slant of rib. Thinness of thigh and tail,length of neck and flatness of bone
49 2 _” deep 45 2 _”
33 1 _”Strong 25 1 _“ Intermediate 17 _” Weak
5 Flat
1 _” Negative cleft 50
45 Ext remely open 40
35 Open 30
25 Intermediate 20
15 Tight 10
5 Extremely tight 1
50 3 _ “ teat 45 3 _”
40 3 “ 35 2 _”
30 2 _ “ 25 2 _”
20 2 “ 15 1 _”
10 1 _ “ 5 1 _”
1 1” teat 50 8”
45 7 _ “ 40 7”
35 6 _ “ 30 6”
25 5 _ “ 20 5”
15 4 _ “ 10 4”
5 3 _ “ 1 3”
50
45 Extremely deep body 40
35 Deep body 30
25 Intermediate body depth
20
15 Shallow b ody 10
5 Extremely shallow body 1
TEAT LENGTH:measure the longest teat
REAR UDDER WIDTH:dis- tance between lateral liga- ment attachments BODY DEPTH: depth of rear
rib
50
45 close,base of teats on inside of quar- ter
40
35 Placement on inside of quarter
30
25 Centrally placed on quarter
20
15 Placement towards outside of quarter 10
5 Extremely wide placement on outside of quarter
1 50 7.0”from vulva to RU 45 Extremely high 40 8.4”
35 Very high 30 9.8”
25 10.5”
20 11.2”
15 Low 10 12.6”
5 Extremely low 1 14.0”from vulva to RU 50
45 Extremely steep angle 40
35 Steep angle 30
25 Intermediate angle 45 20
15 Low angle 10
5 Extremely low angle 1
50 7.0”and over 45 6.5”
40 6.0”
35 5.5”
30 5.0”
25 4.5”
20 4.0”
15 3.5”
10 3.0”
5 2.5”
1 2.0”and under 50
45 Extremely strong &
wide 40
35 Very strong 30
25 Intermediate strength &
width 20
15 Narrow and frail 10
5 Extremely narrow &
frail 1
FRONT TEAT PLACEMENT REAR UDDER HEIGHT:
distance from base of vulva to where the secretory tissue begins
FOOT ANGLE:angle of hoof or toes to ground
RUMP WIDTH:inside meas- urement between pin bones STRENGTH: width of chest,
width of muzzle, substance of bone
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IMPORTANT NOTE: Please thoroughly read the Introduction Section at the beginning of this handbook for complete rules and procedures that are relevant to all National FFA Career Development Events.
I. OBJECTIVE
To recognize the contributions of the handlers in presenting each animal to its best advantage for the dairy cattle partici- pants in the evaluation of the dairy cows and heifers during the National Dairy Cattle Career Development Event.
II. EVENT RULES
1. Participants must be certified by the state advisor and meet the same rules of membership as in all other events conducted during the national FFA convention.
2. It is highly recommended that participants be in either official dress or top half official dress and white pants.
3. Each state is be eligible to nominate at least two members to serve as a participant in the dairy han- dler’s activity. A state may determine its dairy han- der by one of the following methods: (a) State Dairy Cattle Team alternate member, (b) top han- dler in a state FFA showing event,and (c) any other method a state prefers.
4. All handlers shall be recognized with gold, silver or bronze emblem medals. All handlers will be recog- nized at the National Dairy Cattle CDE awards program.
5. Handler candidates must identify the class of dairy in which they wish to handle. However, they may not be assigned their first choice.
6. Handlers should have had prior experience in showing dairy cattle.
7. Handlers will not participate in either the prepara- tion or finishing of the animals assigned.
8. Those selected as handlers shall report to the event superintendent for instructions at the time and place shown in the current year’s “Program for National Events.” It is important that all selected holders attend the information/organizational meeting the day before the National Dairy Cattle Career Development Event,as well as report on time at event day. Those who do not report the day before the event, or on time at event day will be substituted by approved alternates.
9. If a dairy handler cannot control his/her animal, this animal may have to be displayed by an alter- nate holder. The original handler SHALL NOT be given a different animal to display.
10. Evaluation and scoring of each participant, per- formed by a person or persons is designated by the event superintendent:
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C A R E E R D E V E L O P M E N T E V E N T
a s p e c i a l p r o j e c t o f t h e n a t i o n a l f f a f o u n d a t i o n