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Short Communication: Relationship Between Body Growth And Mammary Development In Dairy Heifers, L F. Silva, M J. Vandehaar, Brian K. Whitlock, R P. Radcliff, H A. Tucker
Short Communication: Relationship Between Body Growth And Mammary Development In Dairy Heifers, L F. Silva, M J. Vandehaar, Brian K. Whitlock, R P. Radcliff, H A. Tucker
Brian K Whitlock, PhD, DVM, DACT
Our objective was to determine if prepubertal rate of body weight (BW) gain, independent of diet, was related to mammary development of dairy heifers. Data from two studies recently conducted at Michigan State University were used to identify factors, within a dietary treatment group, that would account for variation in first lactation milk production or amount of mammary parenchymal DNA at the time of puberty. Factors analyzed for variation in milk production during first lactation were: postpartum BW, prepubertal BW gain, gestational BW gain, postpartum BW gain, body condition score (BCS) at breeding, and BCS at calving. Factors analyzed for …
Glycerol With Fetal Calf Serum - A Better Cryoprotectant For Blastocystis Hominis, Init Ithoi
Glycerol With Fetal Calf Serum - A Better Cryoprotectant For Blastocystis Hominis, Init Ithoi
Init Ithoi
In recent years, a growing number of reports have sug- gested that the protozoan parasite, Blastocystis hominis (Brumpt 1912), is a pathogenic cause of diarrhoea. It is imperative, however, that more studies are conducted on the various human isolates of the parasite before in- criminating it is a pathogen. In our laboratory we maintain human and animal isolates of Blastocystis using the monophasic medium Iscove's Modi®ed Dul- becco Medium (IMDM) as established by Ho et al. (1993), but maintaining continuous cultures is tedious, time consuming and expensive, and the parasites may be prone to genetic drift. There is therefore a …