The phrase "a further breed" is correct and usable in written English.
It can be used when discussing a new or additional category or type of something, often in a biological or metaphorical context.
Example: "The researchers discovered a further breed of plant that thrives in extreme conditions."
Alternatives: "an additional type" or "a different variety".
Natural variation was used along the history by farmers to domesticate and further breed for crop plants with desirable traits [1], [2].
A total of 82 F2 hybrids were further bred from these F1 hybrids.
Homozygous transgenic PLP-hαSYN mice were obtained from Prof. Philipp Kahle (Tübingen, Germany) and further bred and maintained in a temperature-controlled specific pathogen free (SPF) room under 12-h light/dark cycle with free access to food and water at the Animal Facility of Innsbruck Medical University.
Positive founders overexpressing truncated LMα1 chain in the neuromuscular system (lines No. 3 and 4) were further bred with dy3K/+ mice [2], followed by sib breeding to generate LMα2 chain deficient animals that express δE3LMα1 chain (dy3K/δE3 mice).
A lot of his mates thought he had gone mad, but since he founded the Rare Breeds Survival Trust in 1973, no further breeds have been lost".
To further generate endothelial-specific CD146 knockout mice (CD146EC-KO mice), CD146floxed/floxed mice were further bred to Tek+/Cre mice (Strain Name: B6.Cg-Tg(Tek-cre)12Flv/J, The Jackson Laboratory), which specifically expressed Cre recombinase in ECs.
As Tek+/CreCD146floxed/floxe mice (CD146EC-KO mice) were viable, these mice were further bred to Tek+/+CD146floxed/floxed mice (WT mice), resulting in 50%% CD146EC-KO mice and 50 % WT mice, both of which were used for subsequent investigations (Fig. 1B).
NOD mice (NOD/ShiLtJ) and C57BL/6J mice were purchased from Jackson Labs, Bar Harbor, ME, and either used for experiments or were further bred in house.
Due to the redundancy of Smad1 and Smad5 expression and function, these mice were further bred with Smad5+/− heterozygous mice to incrementally decrease overall BMP/Smad-signaling.
The resulting GluLKB1fl/fl mice were further bred against C57BL6 reporterRFP reporter mice (Luche et al., 2007).
