Cow-Calf Corner: The impact of China on US cattle and beef markets; Heritability estimates of fertility in replacement heifers

June 19, 2017
The impact of China on U.S. cattle and beef markets
by Derrell S. Peel, Oklahoma State University Extension livestock marketing specialist
Step one of U.S. beef exports to China is completed. The first step of opening any international market is the political process of negotiating access and agreeing on the conditions and stipulations of that access. Step one establishes the game and the rules of the game.
Let the games begin.
Step two follows with the economic process of markets determining the value, size and timing of trade. The restrictions and requirements for U.S. beef to enter China mean that initially only a small portion of U.S. beef production will qualify for export to China. Increasing the qualified supply will necessarily involve additional costs for the industry. The pace of export growth will depend on the value of U.S. beef in China and that, in turn, will depend on which products (cuts and quality) are demanded. Exporters will likely move rather cautiously initially until the market values and export procedures become more certain. The additional costs to qualify for export are typically incurred for entire animals (carcasses) even though only certain products are exported, meaning that the export value must be sufficient to cover the additional costs for non-exported portions of the carcass.
In general, not much is known about the composition of Chinese demand for U.S. beef. What mix of middle versus end meats; Choice versus Select; and offals will make up Chinese demand for U.S. beef? However, given that unofficial flows of U.S. beef have been entering China in recent years, some beef packers may have insight, at least initially, into beef product demand in China. It will likely be a moving target for many months.
These unofficial product flows pose additional questions about the timing and volume of beef exports for the first few weeks or months. It is possible that unofficial flows will convert quickly into official exports, in which case apparent initial volumes of exports to China may simply displace export volume currently being transshipped through other countries. It is possible that the unofficial flows will continue and be augmented by new official exports. It will be important to look comprehensively at export volumes across countries to understand the net effect. It is even possible that China will move quickly and aggressively to stop unofficial flows which could happen before official flows have developed and could actually result in a temporary reduction in net beef exports. The next few weeks/months will no doubt be very dynamic.
There are many unknowns but it seems unlikely that beef exports to China will have a large noticeable effect on cattle and beef prices and beef production in the U.S., initially. Over time, with growing market share, prices for particular products might be affected depending on the quantity, quality and specific products demanded in China. More general price effects on beef and perhaps cattle will depend on the dynamics of demand relative to supply for U.S. beef products in the Chinese market. The U.S. industry will benefit over time from some combination of higher prices and/or increased export volumes as the Chinese market grows. Beef exports to China could be a very big deal in the future but will likely start fairly slowly.
Heritability estimates of fertility in replacement heifers
by Glenn Selk, Oklahoma State University Emeritus Extension animal scientist
With the on-going debate about heifer development strategies, it would seem to be valuable to review some of the basics concerning population genetics and how these principles could affect our management decisions. As we evaluate growing programs for replacement heifers and their impact on long term productivity of the herd, let us remember that both the genetic makeup of the heifer and environment in which she is raised will affect her ability to reproduce and raise progeny.
Reproduction in cattle has historically been reported to be a lowly heritable trait. “Heritability” is that portion of the difference in the performance of cattle that is due to genetics. The remainder of the differences are presumed to be due to differences in the environment (management). The environmental component could include nutrition, health, weather stresses, AI technique, bull fertility, or a neighbor’s dog that gets in the pasture and chases the cattle. Previous estimates of the heritability of pregnancy rates in heifers ranged from 0 to .28.
Iowa State University scientists studied records of 3144 heifers from 6 herds in 5 states. In the Iowa State study, the heritability of “pregnancy rate” was .13. “Pregnancy rate” is the percentage of the heifers exposed to artificial or natural breeding that were diagnosed pregnant after their first entire breeding season. “First service conception rate” is the likelihood that the heifer became pregnant on the first attempt to breed her. The heritability of “first service conception rate” was even lower at .03. This implies that 97 percent of the differences in the “first service conception rate” are due to the management environment in which the heifers were raised. These low heritability estimates suggest that only slow progress could be made by selecting sires and dams that produced heifers with greater pregnancy rates. This data also reminds us that management is still the key to successful pregnancy rates in replacement heifers.
Source: Minick and co-workers. 2004 Iowa State University Beef Research Report.
Cow-Calf Corner is a weekly newsletter from the Oklahoma Cooperative Extension Service.