The 1941-1945 ICC steam RR annual reports break "animals and products" into 22 categories.
While livestock movements are only a portion of that category, it is interesting to see the relative proportion of Livestock freight movements compared to the overall "animal and products" category.
In 1941, for the US overall, horses, cattle, sheep, goats and hogs were:
610,074 car loadings, representing 49% of all "animals and products" car loadings
6.7M tons, representing 40% of "animal and products" tonnage
$55M in freight revenue, representing 30% of all "Animal and products" revenue.
While the tonnage for "fresh meats, N.O.S." was only 1/2 of livestock tonnage, the revenue was $52M, only about 6% less than livestock revenue.
Perhaps an interesting number for modeling purposes is that, nationally, 2.3 stock cars were loaded with livestock for every "fresh meats" car loadings, which one would presume were meat reefers.
Specific to some railroads:
The PRR handled 1.3 stock cars with livestock for each car load of "fresh meats", which one would assume to be meat reefers.
For the ATSF, this carload ratio was 9.5 to 1.
For the NYCentral, the ratio was 0.79 to 1.
For many of the mid-size and smaller eastern roads, "fresh meats" outnumbered livestock moves by significant amounts - ratios of 5 to 10 to 1 or even higher the further east the road.
According to the ICC report, in 1941 the Illinois Terminal RR only handled 15 car loads of livestock and one car of "Fresh meats", while the CB&Q handled 67,207 carloads of livestock, and 22,474 carloads of fresh meat.
Not sure the percentage changes within Illinois tell the full story.... Perhaps the Illinois report counted cars moved in interchange by a terminal RR differently than the ICC did?
---In STMFC@..., <timboconnor@...> wrote :
"Animal products" is a huge category -- from hides, bone meal, tallow,
whole animal carcasses, milk, butter, cheese to processed meats, etc --
A total of 183 cargo categories according to the July 12, 1941 "Report on
the Alton Railroad Company".
Total Originating in Illinois (on 12 major railroads) --
1928-1920 inclusive: 4,098,376 tons
1937-1939 inclusive: 2,225,570 tons -- average decline 46%
The largest percentage declines are shown for several railroads that did a
great deal of business in Illinois: ALTON 68% CB&Q 58% WABASH 61%.
A lesser decline is shown for IC - 37% - which by 1939 was originating more
"animal products" in Illinois than any other railroad. The CB&Q had been the
leader in the 1928-1930 period.
Only one railroad shows an increase in originated tons: Illinois Terminal.