Livestock

December 6, 2011December 6, 2011

Tracking down White Park cattle

This call for information from Lawrence Alderson at Rare Breeds International just came through on DAD-Net. Minus the link, which I’ve added. Can anyone help?

The White Park is an ancient British breed of cattle. It was recorded at Dynevwr in the reign of Rhodri Fawr at least 1,150 years ago, and anecdotally maybe 1,000 years earlier than that. It is a distinctive long-horned animal, porcelain white with coloured points except for the tail which is white. It now is valued as a heritage breed, noted for its high-quality marbled beef and its efficiency of conversion of coarse herbage. It is endangered but has been exported to several countries including USA, Canada, Australia, Denmark and Germany.

A current project coordinated by Rare Breeds International is studying the degree of divergence between national populations. It already has demonstrated that descendants of cattle exported 50 years ago still have the same DNA profile as the current population in UK. In the course of this research RBI has discovered references in the twentieth century (1930s to 1990s) to White Park animals (also referred to as Park or English Park, and Ancient White Park in North America) in several zoological gardens in Europe, including Copenhagen, Prague, Riga, London and Berlin. We are interested to pursue further this thread of research to explore the possibility that the White Park was found more widely in zoological gardens. We request anyone with relevant information to contact RBI at rbisecretariat@mail.com and will be most grateful for your assistance.

December 2, 2011December 2, 2011

Nibbles: Plant conservation, AnGR training materials, ICTs in agriculture, CWR and GIS

Don’t understand the Global Strategy for Plant Conservation? Fear not, help is at hand.
Don’t understand livestock genetics? Fear not, help is at hand.
Don’t understand how ICTs could assist agricultural development? Fear not, help is at hand.
Don’t understand how climate change affects vegetable genetic resources. Fear not, do this postdoc at Wageningen and you will.

November 29, 2011November 29, 2011

Nibbles: Push-pull award, MVP review, Thoroughbred breeding, Rice info, Aquaculture Clinic

Push-pull pulls in prize.
Which is more than can be said for the Millennium Villages Project. I wish someone would occupy them.
You can have too much good breeding. If you’re a horse.
Nice aerial pics of rice cultivation. And a sort of information service on that cereal called Rice 2.0, which unaccountably lacks an RSS feed.
WorldFish invites entrepreneurs to get together and discuss investing in aquaculture. Here’s hoping diversity won’t be left in the dust.

November 28, 2011November 25, 2011

Brainfood: OSP adoption, Milk quality, Passport data quality, Historical collections, Sweet potato domestication, African veggies, Baobab diversity and domestication, Cassava diversity, Strawberry breeding, Barley GWA, Pest symbionts, Maize diversity and climate change

A large-scale intervention to introduce orange sweet potato in rural Mozambique increases vitamin A intakes among children and women. Just 1 year of training worked just as well as a higher intensity intervention (3 years) in increasing OSP and vitamin A intake by younger children, older children and women, and decreasing prevalence of inadequate vitamin A intakes. OSP represented about half of all sweet potatoes consumed so I guess there was not complete replacement of local varieties.
Composition of milk from minor dairy animals and buffalo breeds: a biodiversity perspective. There are significant interbreed and inter-species differences. Dromedary milk is closest to cow milk, mare and donkey milk maybe the healthiest, but moose milk is the one I’d like to try.
Quality indicators for passport data in ex situ genebanks. That would be the genebanks in Eurisco. Verdict: not bad, but could do better. Most variation in quality is among institutes.
Exploring the population genetics of genebank and historical landrace varieties. Old samples of dead seeds of 4 crops in Swedish museum jars more genetically variable than genebank accessions, but it’s not the genebank’s fault. And at least their seeds are still alive. Also no genetic correspondence between geographically matched museum and genebank samples.
Combining chloroplast and nuclear microsatellites to investigate origin and dispersal of New World sweet potato landraces. Two areas of domestication, probably from a single wild progenitor species: lowland NW South America and lowland Central America/Caribbean. Genetic differences between these 2 genepools not accompanied by morphological differences, but then again nobody’s looked properly, and the current descriptors are useless anyway.
The significance of African vegetables in ensuring food security for South Africa’s rural poor. Their huge potential is being thwarted by evil extensionists. Ok, but don’t we need to move beyond that?
Comparative study on baobab fruit morphological variation between western and south-eastern Africa: opportunities for domestication. Hang on a minute, aren’t there a million factsheets about all this?
Marriage exchanges, seed exchanges, and the dynamics of manioc diversity. Kinship structures determine cassava diversity patterns in Gabon. Matrilineal societies have more diversity.
Interspecific hybridization of diploids and octoploids in strawberry. You get pentaploid and tetraploid plants.
Genome wide association analyses for drought tolerance related traits in barley (Hordeum vulgare L.). Ok, deep breath. Over 200 accessions, both wild and cultivated, from 30 countries, so quite variable, but also structured. There were some QTLs that differed between dry and wet sites, but they didn’t explain much phenotypic variation, and they couldn’t be related to previous work. So GWA not much use, probably because of population structure. But couldn’t that have been predicted? And isn’t it possible to do something about structure in the analysis?
Population genetics of beneficial heritable symbionts. Of insects, that is. Mostly proteobacteria. So my question is, could somehow attacking the symbionts form the basis of a pest management strategy?
Projecting the effects of climate change on the distribution of maize races and their wild relatives in Mexico. Many races and wild relatives are predicted to shift in geographic distribution. Unless of course agronomy intervenes. Teocinte taxa should be collected.

November 28, 2011March 5, 2026

Nibbles: Q&A, Zoopharmacognosy, Pigeonpea genome, Turkey, Wheat relatives

Everyday agriculture mysteries solved.
Other animals self-medicate too.
Dueling pigeonpea genome sequencers? Who knew. Well spotted, James.
I’m thankful for turkeys.
And for the crop wild relatives in ICARDA’s genebank too.