In these tests, phenolic constituents from bark of Shasta red fir were found ineffective as stiffening agents for corrugating medium. Other means of application, however, may be effective.
Gum from inner bark of Shasta red fir was not so effective as a beater additive as was locust bean gum, but...
Despite the availability of selenium (Se)-enriched trace mineral supplements, we have observed low Se status in cattle and sheep offered traditional inorganic Se supplements. Reasons for this may include inadequate intake or low bioavailability of inorganic Se sources. The objective of this study was to determine whether rumen microorganisms (RMO)...
Testosterone plays an essential role in sexual differentiation of the male sheep brain. The ovine sexually dimorphic nucleus (oSDN), is 2 to 3 times larger in males than in females, and this sex difference is under the control of testosterone. The effect of testosterone on oSDN volume may result from...
The objective of this study was to investigate the effects of a flaxseed-supplemented diet on archaeal abundance and gene
expression of methanogens in the rumen of dairy cows. In all, 11 non-lactating dairy cows were randomly divided into two
groups: group A (five cows) and B (six cows). The two...
The ovine sexually dimorphic nucleus (oSDN) is 2 times larger in rams than in ewes. Sexual
differentiation of the oSDN is produced by testosterone exposure during the critical period
occurring between gestational day (GD)60 and GD90 (term, 147 d). We tested the hypothesis
that testosterone acts through the androgen receptor...
Full Text:
Dimorphic Nucleus in Male and Female Lamb
Fetuses
Charles E. Roselli, Radhika C. Reddy, Charles T. Estill
The ovine sexually dimorphic nucleus (oSDN) is 2 times larger in rams than in ewes. Sexual
differentiation of the oSDN is produced by testosterone exposure during the critical period
occurring between gestational day (GD)60 and GD90 (term, 147 d). We tested the hypothesis
that testosterone acts through the androgen receptor...
The ovine sexually dimorphic nucleus (oSDN) is 2 times larger in rams than in ewes. Sexual differentiation of the oSDN is produced by testosterone exposure during the critical period occurring between gestational day (GD)60 and GD90 (term, 147 d). We tested the hypothesis that testosterone acts through the androgen receptor...