The first disclaimer - right out of the starting gate - is: Pictures are NO way to analyze beef cattle! But, having said that, these are the only examples which we have to use for speculation. So here are my opinions:
For "seedstock" breeding, with the goal geared toward retaining replacement heifers - or - herd bulls - NONE OF THESE!
For "Terminal" (feedlot) Sire candidates:
#1- weak top line, lacks breed characteristics and masculinity (cow faced), pinched heart girth (lacks spring of rib), fine boned and weak pasterns ( his calves would have a hard time making a profit in a muddy, wet, winter feedlot, poor hindquarters - lacks depth and thickness, lacks muscle expression. OUT!
#2- Only fair top line, WEAK bone expression, fair heart girth depth, cut up in the rear flank, "Funnel Butt" (lacks hindquarter development), cow-faced (indicates poor 'feed efficiency' traits). OUT!
#3- Should have been castrated as a calf. Level top line, but 'holding up' nothing. OUT!
#4- Here we have a bull with a more fully developed hindquarter than the previous three bulls , but from this picture is cow-hocked and sickle-hocked. His calves would not perform well in a feed lot environment. Pinched heart girth. (lacking capacity and feed efficiency). OUT AS A TERMINALL BULL!
#5- Sickle-hocked, cow-hocked, weak bone, only fair hind-quarter development, pinched heart girth. OUT!
#6- One of the two better bulls in this selection of eight bulls. Fair top line, reasonable beef "type" (which indicates that his calves could present better feed efficiency in the feedlot), his calves could potentially have acceptable hindquarters and loin development. Sickle-hocked and I would like to see smoother muscle transition from his shoulder to his upper and deep ribs. His gaskins should be more fully developed. RELUCTANTLY ACCEPTABLE with the caveat that he be mated only to cows with strong Carcass and Growth genetics!
#7- Probably the best "Terminal" sire represented here in this class. . . .but still not up to par if the breeder wishes to make maxmum profits from his calves in the feedlot. Strong topline, smooth muscled throughout, good length, level rump carrying down well into his lower hind quarters, fine heart girth depth and spring of rib, long loin. I like to see more bone development and a wider, more masculine head. His calves should show acceptable feed efficiency.ACCEPTABLE - but again must be mated to strong Terminal type cows.
#8- Level top line, fair masculinity, acceptable hind quarter development. Pinched heart girth (not good capacity for feed efficiency traits). OUT!
Every bull in this class is cut up in the flank, and lacks vigorous bone development. Of course we don't know exactly their ages, but with the crest development of all of them, they have to be within shouting distance of two years of age. That being said, they should all show more "Terminal type" body development.
Across the board. I would not use any of these bulls in either a "Maternal" or a "Terminal" protocol, when there are so MANY bulls available for both types of programs. A breeder is just treading water for his entire life using mediocre seedstock and just hoping and leaving to chance that something good will happen and he can make some money. Using "funnel-butted", weak spined, shallow-bodied, cut-up flanked, cow faced, cow-hocked, sickle-hocked, inefficient sires with unacceptable genetics is guaranteeing failure in a highly competative BU$INE$$. As in any endeavor, knowledge of what you are doing and with clear goals in mind of what you can expect in your breeding program will pay profitable benetfits.
Study and learn!
DOC HARRIS