scholarly journals GENETIC PARAMETERS OF SERUM CHOLESTEROL LEVELS, ACTIVITY AND GROWTH IN MICE

Genetics ◽  
1977 ◽  
Vol 85 (4) ◽  
pp. 659-668
Author(s):  
E A Dunnington ◽  
J M White ◽  
W E Vinson
Keyword(s):  
Physical Activity ◽  
Body Weight ◽  
Weight Gain ◽  
Moisture Content ◽  
Serum Cholesterol ◽  
Genetic Parameters ◽  
Body Weight Gain ◽  
Genetic Correlations ◽  
Percent Body Fat ◽  
Cholesterol Levels

ABSTRACT Heritabilities (h  2) of, and phenotypic and genetic correlations among, serum cholesterol (SC), levels of physical activity, growth, and body moisture content were estimated from data on 466 sire-son pairs of random-bred, ICR albino mice. Heritability estimates of SC and body moisture content were 0.31 ± 0.07 and 0.29 ± 0.11, respectively. Estimates of h  2 for activity measured by standard exercise wheels at 28, 49 and 70 days of age were 0.31 ± 0.17, 0.50 ± 0.11 and 0.27 ± 0.14 and for weight at 21, 44 and 67 days of age, were 0.11 ± 0.09, 0.33 ± 0.09 and 0.42 ± 0.08, respectively. The estimates of h  2 for weight gain ranged from 0.22 ± 0.07 to 0.27 ± 0.08. Significant negative phenotypic correlations occurred between activity and rate of body weight gain. A negative genetic correlation of -0.70 ± 0.11 between SC and body moisture implied that SC and percent body fat are positively correlated. Genetic correlations among SC values and activity scores and between SC values and body weight gains were near zero.

scholarly journals Dampak Pemberian Mikroenkapsulasi Minyak Ikan dalam Pakan terhadap Kolesterol Darah dan Performa pada Domba

2021 ◽  
Vol 21 (1) ◽  
Author(s):  
Ganesha Ade Riemas ◽  
Iman Hernaman ◽  
Diky Ramdani ◽  
Bambang Nurhadi
Keyword(s):  
Body Weight ◽  
Weight Gain ◽  
Fish Oil ◽  
Body Weight Gain ◽  
Blood Cholesterol ◽  
Feed Conversion ◽  
Cholesterol Levels ◽  
Affect Body Weight ◽  
And Performance ◽  
The Impact

ABSTRAK. Tujuan penelitian ini untuk mengukur seberapa besar pengaruh minyak ikan yang sudah terenkapsulasi terhadap kolesterol darah dan performa pada Domba. Penelitian telah dilakukan di Sub Unit Pelayanan Pengembangan Pembibitan Ternak Domba dan Kambing (SUPPPTDK) Bunihayu, Subang pada tanggal 20 Januari 2020 sampai 27 Maret 2020. Sebanyak 18 ekor domba Ekor Tipis jantan dengan bobot 15,99±0,98 kg dialokasikan ke dalam 3 perlakuan secara acak. Domba tersebut diberi ransum perlakuan yang disuplementasi dengan mikroenkapsulasi minyak ikan sebanyak 0% (P0), 2,5% (P1), dan 5% (P2). Data yang terkumpul dilakukan analisis ragam dan bila hasil berbeda nyata maka dilanjutkan dengan uji Duncan. Hasil menunjukkan bahwa mikroenkapsulasi minyak ikan dapat menurunkan kolesterol darah (P0,05), namun tidak berpengaruh nyata terhadap pertambahan bobot badan, konsumsi dan konversi ransum (P0,05). Penurunan kadar kolesterol terjadi pada kelompok domba dengan perlakuan mikroenkapsulasi sebanyak 2,5% (P1) dan mikroenkapsulasi 5% (P2). Kadar kolesterol darah masing-masing perlakuan berturut-turut adalah 100,70 mg/dl (P0); 96,20 mg/dl (P1); dan 78,76 mg/dl (P2). Rataan yang terbaik pada pertambahan bobot badan, konsumsi bahan kering harian, dan konversi ransum terdapat pada P2 yaitu 63,96 g/hari, 574,13 g/hari, dan 9,08. Hasil penelitian dapat disimpulkan bahwa mikroenkapsulasi minyak ikan dapat menurunkan kolesterol darah, dengan penurunan tertinggi pada pemberian 5%.  (The impact of microencapsulation fish oil in feed on blood cholesterols and performance on sheep) ABSTRAK. This study measured the effect of encapsulated fish oil on blood cholesterol and sheep performance. The study was conducted at the Bunihayu Sheep and Goat Breeding Services Bunihayu, Subang on January 20, 2020 to March 27, 2020. A total of 18 male thin-tailed sheep 15.99±0.98 kg were allocated randomly into 3 treatments. The sheep were given feed supplemented with fish oil microencapsulation of 0% (P0), 2.5% (P1), and 5% (P2). The data were collected and analyzed by analysis of variance and, if the result is significantly different, continued by Duncan's test. The results showed that fish oil microencapsulation decreased blood cholesterol levels (P0.05). However, it did not affect body weight gain, consumption, and feed conversion (P0.05). Decreased levels of cholesterol occurred in the group of sheep with 2.5% microencapsulation (P1) and 5% microencapsulation (P2). Blood cholesterol levels of each treatment were 100.70 mg/dl (P0); 96.20 mg/dl (P1); and 78.76 mg/dl (P2), respectively. Averagely, the highest body weight gain, dry matter intake and feed conversion were found in P2 as much as 63.96 g/day, 574.13 g/day, and 9.08, respectively. The results can be concluded that microencapsulation of fish oil can reduce blood cholesterol, with the highest decrease at the level of 5%.

scholarly journals Physical activity and 4-year changes in body weight in 52,498 non-obese people: The Lifelines Cohort

2020 ◽  
Author(s):  
Oyuntugs Byambasukh ◽  
Petra Vinke ◽  
Daan Kromhout ◽  
Gerjan Navis ◽  
Eva Corpeleijn
Keyword(s):  
Physical Activity ◽  
Body Weight ◽  
Weight Gain ◽  
Muscle Mass ◽  
Leisure Time ◽  
Leisure Time Physical Activity ◽  
Body Weight Gain ◽  
Average Weight ◽  
Obese People ◽  
Average Weight Gain

Abstract Objectives: We investigated associations between leisure-time physical activity (LTPA) at different intensities (moderate and vigorous or moderate-to-vigorous) and prospective weight gain in non-obese people. We also examined whether these associations were independent of other lifestyle factors and changes in muscle mass and whether they were age-dependent and changed over a person’s life course.Methods: The data were extracted from the Lifelines cohort study (N=52,498; 43.5% men) and excluded obese individuals (BMI>30kg/m2). We used the validated SQUASH questionnaire to estimate moderate-to-vigorous (MVPA; MET≥4), moderate (MPA; MET between 4 and 6.5) and vigorous PA (VPA; MET≥6.5). Body weight was objectively measured, and changes were standardized to a 4-year period. Separate analyses, adjusted for age, educational level, diet, smoking, alcohol consumption and changes in creatinine excretion (a marker of muscle mass), were performed for men and women.Results: The average weight gain was +0.45±0.03 kg in women. Relative to each reference groups (No-MVPA, No-MPA and No-VPA), MVPA (Beta (95%CI): -0.34 kg (-0.56;-0.13)), MPA (-0.32 kg (-0.54;-0.10)) and VPA (-0.30 kg (-0.43;-0.18)) were associated with less gain in body weight in women after adjusting for potential confounders, described above. These associations were dose-dependent when physically active individuals were divided in tertiles. Beta-coefficients (95%CI) for the lowest, middle, and highest MVPA tertiles relative to the ‘No-MVPA’ were, respectively, -0.24 (-0.47;-0.02), -0.31 (-0.53;-0.08), and -0.38 (-0.61;-0.16) kg. The average weight gain in men was +0.13±0.03 kg, and only VPA, not MPA was associated with less body weight gain. Beta-coefficients (95%CI) for the VPA tertiles relative to the ‘No-VPA’ group were, respectively, -0.25 (-0.42;-0.09), -0.19 (-0.38;-0.01) and -0.20 (-0.38;-0.02) kg. However, after adjusting for potential confounders, the association was no longer significant in men. The potential benefits of leisure-time PA were age-stratified and mainly observed in younger adults (men: <35 years; women: <55 years). Moreover, occupational MVPA was not associated with favourable changes in body weight in males and females.Conclusion: Higher leisure-time MVPA, MPA, and VPA were associated with less weight gain in women <55 years. In younger men (<35 years), only VPA was associated with less weight gain.

Neuroregulation of nonexercise activity thermogenesis and obesity resistance

2008 ◽  
Vol 294 (3) ◽  
pp. R699-R710 ◽  
Author(s):  
Catherine M. Kotz ◽  
Jennifer A. Teske ◽  
Charles J. Billington
Keyword(s):  
Physical Activity ◽  
Body Weight ◽  
Weight Gain ◽  
Body Weight Gain ◽  
Strain Differences ◽  
Mechanistic Explanation ◽  
The Body ◽  
Current Status ◽  
Energetic Cost ◽  
Spontaneous Physical Activity

High levels of spontaneous physical activity in lean people and the nonexercise activity thermogenesis (NEAT) derived from that activity appear to protect lean people from obesity during caloric challenge, while obesity in humans is characterized by dramatically reduced spontaneous physical activity. We have similarly demonstrated that obesity-resistant rats have significantly greater spontaneous physical activity than obesity-prone rats, and that spontaneous physical activity predicts body weight gain. Although the energetic cost of activity varies between types of activity and may be regulated, individual level of spontaneous physical activity is important in determining propensity for obesity. We review the current status of knowledge about the brain mechanisms involved in controlling the level of spontaneous physical activity and the NEAT so generated. Focus is on potential neural mediators of spontaneous physical activity and NEAT, including orexin A (also known as hypocretin 1), agouti-related protein, ghrelin, and neuromedin U, in addition to brief mention of neuropeptide Y, corticotrophin releasing hormone, cholecystokinin, estrogen, leptin, and dopamine effects on spontaneous physical activity. We further review evidence that strain differences in orexin stimulation pathways for spontaneous physical activity and NEAT appear to track with the body weight phenotype, thus providing a potential mechanistic explanation for reduced activity and weight gain.

scholarly journals Physical activity and 4-year changes in body weight in 52,498 non-obese people: The Lifelines Cohort

2020 ◽  
Author(s):  
Oyuntugs Byambasukh ◽  
Petra Vinke ◽  
Daan Kromhout ◽  
Gerjan Navis ◽  
Eva Corpeleijn
Keyword(s):  
Physical Activity ◽  
Body Weight ◽  
Weight Gain ◽  
Muscle Mass ◽  
Body Weight Gain ◽  
Average Weight ◽  
Obese People ◽  
Physically Active ◽  
Younger Men ◽  
Average Weight Gain

Abstract Objectives: We investigated associations between daily-life physical activity (PA) and prospective weight gain in non-obese people. We also examined whether these associations were independent of other lifestyle factors and changes in muscle mass and whether they were age-dependent and changed over a person’s life course. Methods: The data were extracted from the Lifelines cohort study (N=52,498; 43.5% men) and excluded obese individuals (BMI>30kg/m 2 ). We used the validated SQUASH questionnaire to estimate moderate-to-vigorous (MVPA; MET≥4), moderate (MPA; MET between 4 and 6.5) and vigorous PA (VPA; MET≥6.5) within non-occupational (commuting and leisure) and occupational domains. Body weight was objectively measured and changes were standardized to a 4-year period. Separate analyses, adjusted for age, educational level, diet, smoking, alcohol consumption and changes in creatinine excretion (a marker of muscle mass), were performed for men and women. Results: The average weight gain was +0.45±0.03 kg in women. Relative to each reference groups (No-MVPA, No-MPA and No-VPA), non-occupational MVPA (Beta (95%CI): -0.34 kg (-0.56;-0.13)), MPA (-0.32 kg (-0.54;-0.10)) and VPA (-0.30 kg (-0.43;-0.18)) were associated with less gain in body weight in women after adjusting for potential confounders, described above. These associations were dose-dependent when physically active individuals were divided in tertiles. Beta-coefficients (95%CI) for the lowest, middle, and highest MVPA tertiles relative to the ‘No-MVPA’ were, respectively, -0.24 (-0.47;-0.02), -0.31 (-0.53;-0.08), and -0.38 (-0.61;-0.16) kg. The average weight gain in men was +0.13±0.03 kg, and only non-occupational VPA was associated with less body weight gain. Beta-coefficients (95%CI) for the VPA tertiles relative to the ‘No-VPA’ group were, respectively, -0.25 (-0.42;-0.09), -0.19 (-0.38;-0.01) and -0.20 (-0.38;-0.02) kg. However, after adjusting for potential confounders, the association was no longer significant in men. The potential benefits of non-occupational PA were age-stratified and mainly observed in younger adults (men: <35 years; women: <55 years). Moreover, occupational MVPA was not associated with favourable changes in body weight in males and females. Conclusion: Higher non-occupational MVPA, MPA, and VPA were associated with less weight gain in women <55 years. In younger men (<35 years), only non-occupational VPA was associated with less weight gain.

scholarly journals Dorsomedial hypothalamic BDNF neurons integrate thermal afferent signals to control energy expenditure

2021 ◽  
Author(s):  
Wei L Shen ◽  
Hongbin Sun ◽  
Qian Zhou ◽  
Hao Bian ◽  
Mengting Wang ◽  
...  
Keyword(s):  
Physical Activity ◽  
Body Weight ◽  
Adipose Tissue ◽  
Weight Gain ◽  
Energy Expenditure ◽  
Body Weight Gain ◽  
Dorsomedial Hypothalamus ◽  
Brown Adipose ◽  
Thermoregulatory System ◽  
Bdnf Signaling

Mutations in the gene brain-derived neurotrophic factor (BDNF) cause obesity in humans. BDNF signaling and its expressing neurons in the hypothalamus help control feeding, energy expenditure (EE), and physical activity. However, whether the BDNF neurons interact with another EE-regulating system, the thermoregulation circuitry, remains unclear. Here, we show that BDNF neurons in the dorsomedial hypothalamus (DMH) are activated by environmental cooling and sufficient to induce body temperature increases and brown adipose tissue (BAT) thermogenesis. Conversely, blocking these neurons impairs BAT thermogenesis and cold defense, causing body weight gain and glucose intolerance. DMH BDNF neurons are therefore an important type of thermoregulatory neuron, integrating thermal afferent signals to control EE during cold defense. This reveals a critical intersection between the BDNF circuitry and the thermoregulatory system.

scholarly journals Genetic parameters for body weight and different definitions of residual feed intake in broiler chickens

2019 ◽  
Vol 51 (1) ◽  
Author(s):  
Wossenie Mebratie ◽  
Per Madsen ◽  
Rachel Hawken ◽  
Hélène Romé ◽  
Danye Marois ◽  
...  
Keyword(s):  
Body Weight ◽  
Feed Intake ◽  
Broiler Chickens ◽  
Genetic Parameters ◽  
Body Weight Gain ◽  
Genetic Correlations ◽  
Residual Feed Intake ◽  
Nutrient Utilization ◽  
Male And Female ◽  
Males And Females

Abstract Background The objectives of this study were to (1) simultaneously estimate genetic parameters for BW, feed intake (FI), and body weight gain (Gain) during a FI test in broiler chickens using multi-trait Bayesian analysis; (2) derive phenotypic and genetic residual feed intake (RFI) and estimate genetic parameters of the resulting traits; and (3) compute a Bayesian measure of direct and correlated superiority of a group selected on phenotypic or genetic residual feed intake. A total of 56,649 male and female broiler chickens were measured at one of two ages ($${\text{t}}$$ t or $${\text{t}} - 6$$ t - 6 days). BW, FI, and Gain of males and females at the two ages were considered as separate traits, resulting in a 12-trait model. Phenotypic RFI ($${\text{RFI}}_{\text{P}}$$ RFI P ) and genetic RFI ($${\text{RFI}}_{\text{G}}$$ RFI G ) were estimated from a conditional distribution of FI given BW and Gain using partial phenotypic and partial genetic regression coefficients, respectively. Results Posterior means of heritability for BW, FI and Gain were moderately high and estimates were significantly different between males and females at the same age for all traits. In addition, the genetic correlations between male and female traits at the same age were significantly different from 1, which suggests a sex-by-genotype interaction. Genetic correlations between $${\text{RFI}}_{\text{P}}$$ RFI P and $${\text{RFI}}_{\text{G }}$$ RFI G were significantly different from 1 at an older age but not at a younger age. Conclusions The results of the multivariate Bayesian analyses in this study showed that genetic evaluation for production and feed efficiency traits should take sex and age differences into account to increase accuracy of selection and genetic gain. Moreover, for communicating with stakeholders, it is easier to explain results from selection on $${\text{RFI}}_{\text{G}}$$ RFI G than selection on $${\text{RFI}}_{\text{P}}$$ RFI P , since $${\text{RFI}}_{\text{G}}$$ RFI G is genetically independent of production traits and it explains the efficiency of birds in nutrient utilization independently of energy requirements for production and maintenance.

scholarly journals Bayesian estimation of genetic parameters for individual feed conversion and body weight gain in meat quail

2017 ◽  
Vol 200 ◽  
pp. 76-79 ◽  
Author(s):  
Giovani da Costa Caetano ◽  
Rodrigo Reis Mota ◽  
Delvan Alves da Silva ◽  
Hinayah Rojas de Oliveira ◽  
José Marcelo Soriano Viana ◽  
...  
Keyword(s):  
Body Weight ◽  
Weight Gain ◽  
Bayesian Estimation ◽  
Genetic Parameters ◽  
Body Weight Gain ◽  
Feed Conversion ◽  
Estimation Of Genetic Parameters

scholarly journals Influence of Nutrition and Genetics on Performance: A Pilot Study in a Group of Gymnasts

2017 ◽  
Vol 18 (3) ◽  
Author(s):  
Alessandra Amato ◽  
Alessia Sacco ◽  
Alessandra Macchiarella ◽  
Valentina Contrò ◽  
Emilia Sabatino ◽  
...  
Keyword(s):  
Physical Activity ◽  
Body Weight ◽  
Weight Gain ◽  
Genetic Basis ◽  
Genetic Factors ◽  
Body Weight Gain ◽  
Energy Requirements ◽  
Sports Performance ◽  
Food And Nutrition ◽  
Encoding Gene

AbstractPurpose. Energy requirements in sports performance are affected by numerous factors: physical characteristics, age, genetic basis, sports discipline. The Food and Nutrition Board recommended nutrition based on age, height, and body weight gain in relation to physical activity. Some genetic factors, such as the PPAR-encoding gene, play a key role in metabolism. The aim of the study was to investigate the effect of specific snacks on performance. Methods. Seventeen girls aged 10-14 years practising artistic gymnastics were enrolled. A carb or protein/carb snack was provided before the training, and a questionnaire was administered at the end. In addition, saliva samples were collected for genetic analyses. Results. Most girls represented the CC genotype (65%), while a small part had the GC (23%) and GG (12%). The average BMI equalled 20.05 ± 2.8 kg/m

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