Growth, protein synthesis and plasma concentrations of growth hormone, thyroxine and triiodothyronine in dwarf, control and growth-selected strains of broiler-type domestic fowl

Protein turnover, body composition, muscle characteristics, and blood hormones in response to different direction of growth selection in mice

“…No significant differences in thyroid hormone levels (T 3 , T 4 ) were observed between the lines. This confirms results on chickens divergently selected for body weight (Mc Nabb et al, 1989) where the circulating T 3 was not consistently higher in the growth-selected line or results of Lauterio et al (1986), where circulating T 3 of growth-selected broiler strains was mostly higher than in controls while thyroxine levels did not differ at most posthatch stages. The failure in finding simple relations between the patterns of plasma T 3 or T 4 levels and the patterns of growth is explainable in the view of the complexity of thyroid hormone actions.…”

Protein turnover, body composition, muscle characteristics, and blood hormones in response to different direction of growth selection in mice

“…No significant differences in thyroid hormone levels (T 3 , T 4 ) were observed between the lines. This confirms results on chickens divergently selected for body weight (Mc Nabb et al, 1989) where the circulating T 3 was not consistently higher in the growth-selected line or results of Lauterio et al (1986), where circulating T 3 of growth-selected broiler strains was mostly higher than in controls while thyroxine levels did not differ at most posthatch stages. The failure in finding simple relations between the patterns of plasma T 3 or T 4 levels and the patterns of growth is explainable in the view of the complexity of thyroid hormone actions.…”

Thyroid hormone and growth : relationships with growth hormone effects and regulation

“…As in the other situations,Scanes et al (1983), May & Marks (1983), Marsh et al (1984) andLauterio et al (1986) have reported that plasma T3 levels decreased in sex-linked dwarf chickens.…”

The role of thyroid hormones in the growth hormone response to protein restriction in the domestic fowl ( Gallus domesticus )

“…A similar situation may exist in the sex-linked dwarf chicken. These birds have depressed thyroid hormone concentrations and raised plasma concentrations of GH compared with the normal strain (Lauterio, Decuypere & Scanes, 1986a). A recent study has examined the response of the sex-linked dwarf chicken to TRH challenge after chronic consumption of a nor¬ mal or a thyroid hormone-supplemented diet (Scanes, Denver & Bowen, 1986).…”

Protein turnover, body composition, muscle characteristics, and blood hormones in response to different direction of growth selection in mice

“…No significant differences in thyroid hormone levels (T 3 , T 4 ) were observed between the lines. This confirms results on chickens divergently selected for body weight (Mc Nabb et al, 1989) where the circulating T 3 was not consistently higher in the growth-selected line or results of Lauterio et al (1986), where circulating T 3 of growth-selected broiler strains was mostly higher than in controls while thyroxine levels did not differ at most posthatch stages. The failure in finding simple relations between the patterns of plasma T 3 or T 4 levels and the patterns of growth is explainable in the view of the complexity of thyroid hormone actions.…”

Thyroid hormone and growth : relationships with growth hormone effects and regulation

“…As in the other situations,Scanes et al (1983), May & Marks (1983), Marsh et al (1984) andLauterio et al (1986) have reported that plasma T3 levels decreased in sex-linked dwarf chickens.…”

The role of thyroid hormones in the growth hormone response to protein restriction in the domestic fowl ( Gallus domesticus )

“…A similar situation may exist in the sex-linked dwarf chicken. These birds have depressed thyroid hormone concentrations and raised plasma concentrations of GH compared with the normal strain (Lauterio, Decuypere & Scanes, 1986a). A recent study has examined the response of the sex-linked dwarf chicken to TRH challenge after chronic consumption of a nor¬ mal or a thyroid hormone-supplemented diet (Scanes, Denver & Bowen, 1986).…”

Protein turnover, body composition, muscle characteristics, and blood hormones in response to different direction of growth selection in mice

“…No significant differences in thyroid hormone levels (T 3 , T 4 ) were observed between the lines. This confirms results on chickens divergently selected for body weight (Mc Nabb et al, 1989) where the circulating T 3 was not consistently higher in the growth-selected line or results of Lauterio et al (1986), where circulating T 3 of growth-selected broiler strains was mostly higher than in controls while thyroxine levels did not differ at most posthatch stages. The failure in finding simple relations between the patterns of plasma T 3 or T 4 levels and the patterns of growth is explainable in the view of the complexity of thyroid hormone actions.…”

Thyroid hormone and growth : relationships with growth hormone effects and regulation

“…As in the other situations,Scanes et al (1983), May & Marks (1983), Marsh et al (1984) andLauterio et al (1986) have reported that plasma T3 levels decreased in sex-linked dwarf chickens.…”

The role of thyroid hormones in the growth hormone response to protein restriction in the domestic fowl ( Gallus domesticus )

“…A similar situation may exist in the sex-linked dwarf chicken. These birds have depressed thyroid hormone concentrations and raised plasma concentrations of GH compared with the normal strain (Lauterio, Decuypere & Scanes, 1986a). A recent study has examined the response of the sex-linked dwarf chicken to TRH challenge after chronic consumption of a nor¬ mal or a thyroid hormone-supplemented diet (Scanes, Denver & Bowen, 1986).…”