Variations of energy biochemical metabolites in periparturient dairy Saanen goats

Sadjadian, Rasool; Seifi, Hesam A; Mohri, Mehrdad; Naserian, Abbas Ali; Farzaneh, Nima

doi:10.1007/s00580-012-1431-8

Cited by 52 publications

(85 citation statements)

References 28 publications

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“…As previously reported (Sadjadian et al, 2013), plasma glucose sharply increased on parturition day. This is similar to ewes, whereby pronounced hyperglycemia is caused by cortisol release during the terminal stages of labor (Comline and Silver, 1972).…”

Section: Plasma Metabolitessupporting

confidence: 88%

“…As consequence of their productive and reproductive capacity, periparturient Saanen dairy goats are considered to be in negative energy balance (Sadjadian et al, 2013). The analysis of plasma metabolites (in particular, the low levels of glucose and the high levels of NEFA herein reported) confirms the occurrence of negative energy balance in the goats of the present study.…”

Section: Plasma Metabolitessupporting

confidence: 80%

“…According to this, one could hypothesize that in dairy cows lactational status per se influences plasma insulin levels, whereas in lactating goats parity as well is involved in the control of insulinemia. As reported above accordingly with other authors, periparturient goats are considered to be in negative energy balance, due to the high requirements of nutrients for rapid fetal growth during late pregnancy and for milk synthesis during early lactation (Bonnet et al, 2005;Sadjadian et al, 2013). This negative energy balance leads periparturient goats to increase lipid mobilization from adipose tissue to meet energy demand, which could not be covered by dietary intake (Chávez et al, 2009).…”

Section: Plasma Insulinmentioning

confidence: 74%

“…Data on litter size, kid BW, and milk yield prove that the Saanen goat is one of the highest milk-producing goat breeds and has a high reproductive yield (Sadjadian et al, 2013).…”

Section: Mean Dmi Litter Size Kid Bw Goat Bw and Milk Yieldmentioning

confidence: 99%

“…Energy requirement by the gravid uterus and then by the lactating mammary gland greatly increases and could be not covered by dietary intake. Homeoretic adaptation to this condition starts within few days from parturition by enhancing bodily reserves mobilization and liver gluconeogenesis and by decreasing glucose utilization by peripheral tissue (Comline and Silver, 1972;Bell, 1995;Sadjadian et al, 2013). The interplay of factors regulating these metabolic adjustments in goats is complicated by parity.…”

Section: Introductionmentioning

confidence: 99%

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Trend analysis of plasma insulin level around parturition in relation to parity in Saanen goats1

Magistrelli

Rosi

2014

Journal of Animal Science

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The present study investigated the effect of parity on plasma insulin level around parturition in Saanen goats. 0, 3, 7, 10, and 14 from parturition, plasma glucose, NEFA, free AA, cortisol, and insulin concentrations were analyzed in 10 primiparous and 10 multiparous goats. At parturition, BW of primiparous goats was about 75% of that of multiparous ones (P < 0.001) and then their milk production was lower than that of multiparous ones (P < 0.001). At parturition, glucose increased (P < 0.01) in both primiparous and multiparous goats and then decreased (P < 0.01) on d 3 of lactation, remaining higher (P < 0.01) in primiparous than multiparous goats until the end of the study period. In both groups, free AA decreased (P < 0.01) at parturition, returning to prepartum levels (P < 0.01) on d 3 of lactation without difference between groups. Only in multiparous goats, plasma NEFA increased at parturition (P < 0.01), returning to prepartum levels on d 14 (P < 0.01). Changes in glucose and AA could have been caused by cortisol, which increased (P < 0.01) at parturition in both primiparous and multiparous goats, returning to prepartum levels (P < 0.01) on d 7 of lactation, without difference between the parity groups. In multiparous goats, insulin decreased soon after parturition (P < 0.05), remaining at low levels until the end of the study period, whereas in primiparous goats, insulin did not vary until d 14 of lactation, when it decreased (P < 0.05) also in this group. Therefore, between d 3 and 14 of lactation, insulin was higher in primiparous than multiparous goats (P < 0.05). Only in primiparous goats, at kidding, insulin was negatively correlated to BW (P < 0.01), and after parturition it was negatively correlated with milk yield (P < 0.05) and plasma NEFA (P < 0.05). We hypothesize that higher insulin levels in primiparous Saanen goats, which are still immature at their first breeding season, acted to limit both the mobilization of bodily reserves and the capture of nutrients by the lactating mammary gland, thus providing nutrients for their own physical and physiological development.

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Section: Plasma Metabolitessupporting

confidence: 88%

Section: Plasma Metabolitessupporting

confidence: 80%

Section: Plasma Insulinmentioning

confidence: 74%

“…Data on litter size, kid BW, and milk yield prove that the Saanen goat is one of the highest milk-producing goat breeds and has a high reproductive yield (Sadjadian et al, 2013).…”

Section: Mean Dmi Litter Size Kid Bw Goat Bw and Milk Yieldmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 3 more Smart Citations

Trend analysis of plasma insulin level around parturition in relation to parity in Saanen goats1

Magistrelli

Rosi

2014

Journal of Animal Science

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Evaluation of radiological and anatomical features of skull bones in adult Saanen goat

Alizadeh,

Kamfar,

Hosseinchi

2024

Veterinary Medicine & Sci

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BackgroundObtaining accurate knowledge of the anatomical structure of the skull helps in ontogenetic studies and determining sexual polymorphisms.ObjectivesThis study uses anatomical dissection and radiography to develop a size standard for the skull of the Saanen goat; information that will be applied to clinical evaluation and decision‐making.MethodsA total of 14 adult Saanen goat skulls (7 male and 7 female goats) were taken from the slaughterhouse and transferred to the clinic of the Faculty of Veterinary Medical Teaching Hospital, Urmia University, Urmia, Iran. Radiographs of each skull were prepared in the dorsal–ventral, left and right lateral recumbency. These heads were then brought over to the anatomy department, where the chosen morphometric traits were assessed and their means recorded.ResultsAccording to the findings of this study, the dorsal view of the skull revealed an incisive raphe and a widespread foramen of the nose. In the ventral view, the incisive bones were observed in the most cranial region of the skull. The base of the occipital bone was relatively large, and the jugular process was well‐developed. In the lateral view, the incisive bone was extended to the cranial and had a narrow process on the dorsal surface. Regarding infra‐orbital foramen, it was visible in the maxillary bone. Moreover, the lacrimal bone was perceived as a distinct bone.ConclusionThe precise standards acquired in this study can be utilized to interpret the findings and make clinical decisions about the normal and abnormal size of the bones that make up the skulls of the Saanen goats.

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Nutritional and Metabolic Disorders in Dairy Goats

Simões

Gutiérrez

2017

Sustainable Goat Production in Adverse Environments: Volume I

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Variations of energy biochemical metabolites in periparturient dairy Saanen goats

Cited by 52 publications

References 28 publications

Trend analysis of plasma insulin level around parturition in relation to parity in Saanen goats1

Trend analysis of plasma insulin level around parturition in relation to parity in Saanen goats1

Evaluation of radiological and anatomical features of skull bones in adult Saanen goat

Nutritional and Metabolic Disorders in Dairy Goats

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