Gonadal hormones determine sex differences in timing of incubation by doves

Ramos, Cindy; Silver, Rae

doi:10.1016/0018-506x(92)90024-p

Cited by 14 publications

(4 citation statements)

References 30 publications

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“…Males and females pigeons are different in expression of incubation and nest defence behaviour, oxidative status and profile of blood value during breeding cycle (Costantini, 2010;Gayathri, Shenoy, & Hegde, 2004;Lea, Vowles, & Dick, 1986). Sexually oriented differences are related to the differences of gonadal hormones, PRL and energy acquisition constraints (Matysioková & Remeš, 2014;Ramos & Silver, 1992;Silver, 1984). Liver sits at the crossroads of metabolism in animals, and almost all metabolic pathways and metabolic enzymes are active in liver (Krebs, 1972).…”

Section: Introductionmentioning

confidence: 99%

Changes in hepatic glucose and lipid metabolism‐related parameters in domestic pigeon (Columba livia) during incubation and chick rearing

Wan

Xie

et al. 2017

Animal Physiology Nutrition

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This study aimed to evaluate the hepatic glucose and lipid metabolism-related parameters of adult male and female White King pigeons (Columba livia) during incubation and chick rearing. At day 4 (I4), 10 (I10) and 17 (I17) of incubation and day 1 (R1), 7 (R7), 15 (R15) and 25 (R25) of chick rearing, livers were sampled from six pigeons for each sex. Glycogen and fat contents, activities of glycolytic enzymes (hexokinase, HK; 6-phosphofructokinase, 6-PFK), and genes expressions of key enzymes involved in glycolysis (pyruvate kinase, PK; glucokinase, GK), gluconeogenesis (phosphoenolpyruvate carboxykinase cytosolic, PCK1; fructose-1,6-bisphosphatase, FBP1; glucose-6-phosphatase, G6Pase), fatty acid synthesis (fatty acid synthase, FAS; acetyl-CoA carboxylase, ACC) and fatty acid β-oxidation (carnitine palmitoyltransferase 1, CPT1; acyl-CoA 1, ACO) were measured. In male and female pigeon livers, glycogen content and HK activity dramatically increased after I17 and after R1, respectively; expressions of FBP1 and G6Pase genes were maximized at R15; activity of 6-PFK and expressions of PK and CPT1 genes were highest at R7; fat content and expressions of FAS and ACC genes steeply increased from I10 to R1. In females, hepatic expressions of GK and PCK1 genes were greatest at R7 and I17, respectively; however, in males, both of them were maximized at R15. Hepatic expression of ACO gene was significantly enhanced at R1 compared to I17 and R7 in males, whereas it was notably up-regulated at I17 and R7 in females. Furthermore, expressions of PCK1, GK, FAS and ACC genes were in significant relation to fat content in the livers of female pigeons, while fat content in male pigeons was highly correlated with expression of PCK1, ACC, CPT1 and ACO genes. In conclusion, regulations of glucose and lipid metabolic processes were enhanced in parent pigeon livers from terminal phases of incubation to mid phase of chick rearing with sexual effects.

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Section: Introductionmentioning

confidence: 99%

Changes in hepatic glucose and lipid metabolism‐related parameters in domestic pigeon (Columba livia) during incubation and chick rearing

Wan

Xie

et al. 2017

Animal Physiology Nutrition

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“…SPECIES OF DOVES in the genus Streptopelia are important model systems for studies of physiology (Walker et al 1983, Janik and Buntin 1985, Cheng 1986, Ramos and Silver 1992, ten Cate et al 1993 and behavior (Lade and Thorpe 1964, Zenone et al 1979, Cheng et al 1981, Cheng 1992, Slabbekoorn and ten Cate 1998, Slabbekoorn et al 1999. The 16 species of Streptopelia historically had an African and Eurasian distribution, but some species have been introduced to the New World and Australia.…”

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confidence: 99%

A Molecular Phylogeny of the Dove Genera Streptopelia and Columba

Johnson

Mateman

Cate

et al. 2001

The Auk

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“…Although the mechanisms underlying these patterns are not completely understood, an interval timing mechanism is thought to control when males begin to incubate or brood, whereas an endogenous circadian rhythm controls the time of day that females approach the nest to incubate or brood [Gibbon et al, ]. Both mechanisms are under the influence of gonadal hormones, as these behavioral patterns are eliminated by gonadectomy, but can be restored with hormone treatment [Ramos and Silver, ].…”

Section: Discussionmentioning

confidence: 99%

Parent-offspring behavior of Jambu fruit doves (Ptilinopus jambu)

et al. 2016

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Fruit doves (Ptilinopus) constitute a genus of small to medium-sized, brightly colored arboreal birds, whose diets consist entirely of fruit. Little is known about the behavior of fruit doves because most species inhabit dense forests and are difficult to observe in the wild. This study describes the parental behavior of Jambu fruit dove pairs (Ptilinopus jambu) in a captive breeding program at the Saint Louis Zoo. Continuous video recordings were made of three pairs which raised a total of eight squabs over 2 years; daily rates of parental and squab behaviors were quantified. Overall, females were present at the nest, brooded their squabs, pecked, and attempted feedings more often than males. Parents also cared for their squabs at different times throughout the day. Males fed and brooded squabs during the middle of the day, while females fed throughout the day and brooded in the morning, evening, and overnight. Feeding rates were lower than those described for seed-eating doves (Columbinae), with hours between consecutive feedings, and squabs rarely begged before feeding events. Most squab behaviors involved initiating or terminating brooding and self-preening. These behaviors increased as squabs approached fledging, and coincided with a shift from full to partial brooding, and a decrease in parental allopreening. Older squabs also initiated feeding less frequently. Together, these data provide the first description of parental behavior in a Ptilinopus fruit dove. The results of this study may help improve captive breeding efforts, which are likely to become increasingly important for future conservation and reintroduction programs.

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Gonadal hormones determine sex differences in timing of incubation by doves

Cited by 14 publications

References 30 publications

Changes in hepatic glucose and lipid metabolism‐related parameters in domestic pigeon (Columba livia) during incubation and chick rearing

Changes in hepatic glucose and lipid metabolism‐related parameters in domestic pigeon (Columba livia) during incubation and chick rearing

A Molecular Phylogeny of the Dove Genera Streptopelia and Columba

Parent-offspring behavior of Jambu fruit doves (Ptilinopus jambu)

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