Obesity Development in a Miniature Yucatan Pig Model: A Multi-compartmental Metabolomics Study on Cloned and Normal Pigs Fed Restricted or Ad Libitum High-Energy Diets

The primary aim of the calf rearer is to ensure a successful transition from non ruminant to ruminant status while achieving rapid growth and an early intake of solid food. Newbold, Blake and Hagges (1991), found that increasing the concentration of ME in either the starter or milk replacer will not promote more rapid growth, but will simply reduce the rate of starter consumption. This present study investigated the extent to which the energy density of a calf starter ration affected starter intake and liveweight gain in calves receiving a fixed allowance of a high energy milk replacer with ad libitum access to solid calf starter rations.

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PSX-A-10 Late-Breaking: Effects of paternal high energy diets on blastocyst development during in vitro embryo production in the bovine

Journal of Animal Science ◽

10.1093/jas/skab235.665 ◽

2021 ◽

Vol 99 (Supplement_3) ◽

pp. 363-363

Author(s):

Dylan B Davis ◽

Zachary Seekford ◽

Mackenzie Dickson ◽

Lucas Gonçalves ◽

Samir Burato ◽

...

Keyword(s):

High Gain ◽

High Energy ◽

Carcass Composition ◽

Adaptation Period ◽

Blastocyst Development ◽

Embryo Production ◽

Ad Libitum ◽

In Vitro Embryo Production ◽

To Receive

Abstract The objective of this study was to evaluate the effect of paternal high energy diets on blastocyst development during in vitro embryo production (IVP). Eight sires were stratified by body weight (initial BW = 946 ± 85 kg) and randomly assigned to the same diet (NEm = 2.10, NEg = 1.44, CP = 14.1%, NDF = 16.6%, DM basis) fed at two different inclusion rates while having ad libitum access to bermudagrass hay (NEm = 1.02, NEg = 0.45, CP = 10.2%, NDF = 71.6). After a 10-d adaptation period, sires were individually fed to receive 0.5% (MAINT) or 1.25% [High gain (HG)] of their BW daily for 67 days. At the end of the feeding period, semen was collected through electroejaculation and frozen. Antral follicles were aspirated from ovaries obtained from a slaughterhouse and utilized for IVP in 4 independent replicates (n = 2,227 total oocytes). Cleavage rates were evaluated 48 h after fertilization and blastocyst development rates were evaluated after 7 days of embryo culture. The proposed treatments successfully induced differences in BW gain (P < 0.01; 2.28 vs -0.04 kg/d) and carcass composition (Rump fat: 1.63 vs. 0.41 cm, P = 0.08; Rib fat: 1.06 vs. 0.41 cm, P = 0.02; intramuscular fat: 3.5 vs. 3.0%, P = 0.36; for HG vs. MAINT sires, respectively). There was a significant decrease in cleavage rates (69.9 ± 2.5 vs. 65.0 ± 2.7; P < 0.04), blastocyst rate as a percentage of oocytes (16.7 ± 2.9 vs. 11.5 ± 2.1; P < 0.01), and blastocyst rates as a percentage of cleaved structures (24.1 ± 3.8 vs. 11.5 ± 2.1; P < 0.01) for HG compared with MAINT sires. In conclusion, sires fed diets that induce highly anabolic conditions had impaired blastocyst development compared to sires fed a maintenance diet.

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A Comparison of Total Food Intake at a Personalised Buffet in People with Obesity, before and 24 Months after Roux-en-Y-Gastric Bypass Surgery

Nutrients ◽

10.3390/nu13113873 ◽

2021 ◽

Vol 13 (11) ◽

pp. 3873

Author(s):

Natasha Kapoor ◽

Werd al Najim ◽

Camilo Menezes ◽

Ruth K Price ◽

Colm O’Boyle ◽

...

Keyword(s):

Gastric Bypass ◽

Food Intake ◽

Gastric Bypass Surgery ◽

Caloric Intake ◽

High Energy ◽

Relative Increase ◽

High Energy Density ◽

Total Food Intake ◽

Ad Libitum ◽

Operative Assessment

Long-term reductions in the quantity of food consumed, and a shift in intake away from energy dense foods have both been implicated in the potent bariatric effects of Roux-en-Y gastric bypass (RYGB) surgery. We hypothesised that relative to pre-operative assessment, a stereotypical shift to lower intake would be observed at a personalised ad libitum buffet meal 24 months after RYGB, driven in part by decreased selection of high energy density items. At pre-operative baseline, participants (n = 14) rated their preference for 72 individual food items, each of these mapping to one of six categories encompassing high and low-fat choices in combination with sugar, complex carbohydrate or and protein. An 18-item buffet meal was created for each participant based on expressed preferences. Overall energy intake was reduced on average by 60% at the 24-month buffet meal. Reductions in intake were seen across all six food categories. Decreases in the overall intake of all individual macronutrient groups were marked and were generally proportional to reductions in total caloric intake. Patterns of preference and intake, both at baseline and at follow-up appear more idiosyncratic than has been previously suggested by verbal reporting. The data emphasise the consistency with which reductions in ad libitum food intake occur as a sequel of RYGB, this being maintained in the setting of a self-selected ad libitum buffet meal. Exploratory analysis of the data also supports prior reports of a possible relative increase in the proportional intake of protein after RYGB.

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Eating ‘attentively’ reduces later energy consumption in overweight and obese females

British Journal Of Nutrition ◽

10.1017/s000711451400141x ◽

2014 ◽

Vol 112 (4) ◽

pp. 657-661 ◽

Cited By ~ 37

Author(s):

Eric Robinson ◽

Inge Kersbergen ◽

Suzanne Higgs

Keyword(s):

Energy Consumption ◽

Food Intake ◽

Energy Intake ◽

High Energy ◽

Focused Attention ◽

Memory Representation ◽

Snack Food ◽

Attention Condition ◽

Appetite Control ◽

Ad Libitum

Attentional and memory processes underpin appetite control, but whether encouraging overweight individuals to eat more ‘attentively’ can promote reductions in energy consumption is unclear. In the present study with a between-subjects design, a total of forty-eight overweight and obese females consumed a fixed lunchtime meal. Their ad libitum energy intake of high-energy snack food was observed during a second laboratory session that occurred later that day. In the focused-attention condition, participants ate their lunch while listening to audio instructions that encouraged them to pay attention to the food being eaten. In a control condition, participants ate while listening to an audio book with a neutral (non-food-related) content. To test whether focused attention influenced food intake via enhancing the memory of the earlier consumed meal, we measured the participants' memory of their lunchtime meal. Ad libitum snack intake was approximately 30 % lower for participants in the focused-attention condition than for those in the control condition, and this difference was statistically significant. There was limited evidence that attention decreased later food intake by enhancing memory representation of the earlier consumed meal. Eating attentively can lead to a substantial decrease in later energy intake in overweight and obese individuals. Behavioural strategies that encourage a more ‘attentive’ way of eating could promote sustained reductions in energy intake and weight loss.

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Effect of nutritional regimen including limit feeding and breed on growth performance, carcass characteristics and meat quality in beef cattle

Canadian Journal of Animal Science ◽

10.4141/cjas2011-126 ◽

2012 ◽

Vol 92 (3) ◽

pp. 327-341 ◽

Cited By ~ 7

Author(s):

E. M. McGregor ◽

C. P. Campbell ◽

S. P. Miller ◽

P. P. Purslow ◽

I. B. Mandell

Keyword(s):

Beef Cattle ◽

Growth Performance ◽

Meat Quality ◽

Shear Force ◽

Average Daily Gain ◽

Carcass Characteristics ◽

High Energy ◽

Ad Libitum ◽

Limit Feeding ◽

Daily Gain

McGregor, E M., Campbell, C. P., Miller, S. P., Purslow, P. P. and Mandell, I. B. 2012. Effect of nutritional regimen including limit feeding and breed on growth performance, carcass characteristics and meat quality in beef cattle. Can. J. Anim. Sci. 92: 327–341. The effects of nutritional management regimen and breed on growth performance, carcass attributes, and meat quality were evaluated in 68 British (BRIT) and Continental (CONT) crossbred steers, managed on one of three nutritional regimens: (1) ad libitum access to a 77% corn diet (ALGRAIN), (2) limit feeding initially of the 77% corn diet, followed by ad libitum access to the 77% corn diet (LFGRAIN), and (3) limit feeding initially of a 90% haylage diet, followed by ad libitum access to the 77% corn diet (LFHAYL). Nutritional regimen by breed interactions (P<0.02) were present for average daily gain, dry matter intake (DMI), gain to feed, and shear force. LFHAYL regimen decreased gains to a greater extent for BRIT steers than CONT steers managed on ALGRAIN or LFGRAIN. Feed intakes were similar across nutritional regimens for CONT steers, while DMI was depressed in BRIT on LFHAYL as compared with steers started on ALGRAIN or LFGRAIN. Gain to feed was greater in BRIT cattle on LFGRAIN vs. ALGRAIN, while gain to feed was similar in CONT started on grain (ALGRAIN, LFGRAIN). Shear force was lower for beef from LFHAYL BRIT vs. beef from BRIT on ALGRAIN or LFGRAIN, while the converse was true for CONT. Limit feeding of a high-energy diet may be appropriate for cattle of British background to reduce feed input costs, while ensuring tenderness.

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Performance and hormonal profile in broiler chickens fed with different energy levels during post restriction period

Pesquisa Agropecuária Brasileira ◽

10.1590/s0100-204x2003000600005 ◽

2003 ◽

Vol 38 (6) ◽

pp. 697-702 ◽

Cited By ~ 9

Author(s):

Poliana Fernanda Giachetto ◽

Erika Nomura Guerreiro ◽

Jesus Aparecido Ferro ◽

Maria Inês Tiraboschi Ferro ◽

Renato Luis Furlan ◽

...

Keyword(s):

Energy Level ◽

Broiler Chickens ◽

Energy Levels ◽

High Energy ◽

Feed Restriction ◽

Feed Conversion ◽

Feeding Program ◽

Ad Libitum ◽

Ad Libitum Intake ◽

Metabolic Hormone

The aim of this work was to investigate the influence of diet energy level on performance and hormonal profiles of broilers during post restriction period. It was a split-plot experiment, and the main treatments were in a 2x2 factorial scheme. Birds were fed restricted to 30% of the ad libitum intake, from 7 to 14 days of age. After the restriction period, birds were fed ad libitum with diets containing low (2,900 kcal ME/kg) or high (3,200 kcal ME/kg) energy until 49 days of age. Broilers fed with high energy ration showed lower feed intake and better feed conversion and decreased carcass protein; however, abdominal fat pad, and total carcass fat were not affected by ration energy levels or feeding program. Neither diet energy level nor feed restriction program changed body weight at 49 days. The profile of insulin-like growth factor-1 (IGF-1) was reduced during the feed restriction period, but increased at refeeding period. Feeding program and ration energy level did not affect T3, T4 and growth hormone serum concentrations. Feed restriction at 30% of ad libitum intake is not enough to promote changes on carcass quality, related to fat deposition, and on metabolic hormone levels, except IGF-1 seric level that has rapid increase after feed restriction.

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Effect of Feeding Feed Blocks Enriched with Different Sources of Protein on the Performance of Awassi Ewes during Late Pregnancy, Suckling and Milking Stages

The Iraqi Journal of Veterinary Medicine ◽

10.30539/iraqijvm.v32i1.778 ◽

2008 ◽

Vol 32 (1) ◽

pp. 180-197

Author(s):

Hadeel K. Ibrahim

Keyword(s):

Live Weight ◽

Late Pregnancy ◽

High Energy ◽

Fourth Group ◽

The Third ◽

Ad Libitum ◽

Barley Grains ◽

Different Sources ◽

Effect Of Feeding ◽

Better Than

Two experiments were conducted to investigate the effect of feeding feedblocks (FB) enriched with different sources of protein on the performance ofAwassi ewes during late pregnancy, suckling and milking stages. Experiment(1) was conducted to investigate the effect of feeding feed blocks enriched withdifferent sources of protein on the performance of Awassi ewes during latepregnancy. Eighty pregnant Awassi ewes (mean live weight 09.91±0.31 Kg),aged 3-5 years were allocated into four groups according to ewes’ live weight.First group (T1) fed ordinary high energy FB (OFB) + straw (ad-libitum). Thesecond group (T2) fed FB enriched with cottonseed meal (FBCSM) + straw (adlibitum).The third group (T3) fed FB enriched with sunflower seed meal(FBSSM) + straw (ad-libitum). The fourth group (T4) fed barley grains + straw(ad-libitum) (Farmer practice). Experiment (2) was conducted to investigate theeffect of feeding high energy feed blocks enriched with different sources ofprotein on the performance of Awassi ewes during suckling and milking stages.Sixty-four Awassi ewes (mean live weight 03.62 ±1.13 kg), aged 3-5 years wereallocated into four groups according to ewes’ live weight and milk yield. Firstgroup (T1) fed OFB + barley grains + straw (ad-libitum). The second group(T2) fed FBCSM + barley grains + straw (ad-libitum). The third group (T3)FBSSM + barley grains + straw (ad-libitum). The fourth group (T4) fed barleygrains + straw (ad-libitum) (Farmer practice). The experimental diets were fedduring the last six weeks of pregnancy, 90 days during suckling stage and 45days during milking stage. The results of Experiment 1 indicated that despite nosignificant differences between the four groups on studied traits (ewes weightchanges and lambs birth weight), but there was a trend the groups (T1, T2 andT3) fed FB performed better than group T4 fed according to the farmer’spractice. Group T2 that was fed FBCSM had slightly better performance thangroups T1, T3 and T4, which were fed OFB, FBSSM and farmer, practice dietsrespectively.

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A comparison of liveweight gain of two groups of weaners of different entry liveweight in an ad libitum fodder beet feeding system for finishing beef cattle

Journal of New Zealand Grasslands ◽

10.33584/jnzg.2015.77.479 ◽

2015 ◽

Vol 77 ◽

pp. 23-28 ◽

Cited By ~ 1

Author(s):

S.J. Gibbs ◽

B. Saldias ◽

J. White ◽

D. Walsh ◽

N. Stocker ◽

...

Keyword(s):

Beef Cattle ◽

Cost Effective ◽

High Energy ◽

Feeding System ◽

Finishing Cattle ◽

Fodder Beet ◽

Group A ◽

Ad Libitum ◽

Group B ◽

Finishing Beef Cattle

The use of fodder beet as the primary diet for finishing beef cattle is a recent New Zealand innovation. A system using ad libitum grazed fodder beet through autumn and winter to finish spring-born steers between 12 and 18 months old was developed. Fodder beet is a high energy yet comparatively low protein content feed, and the fodder beet system requires high liveweight gains on the crop and an early slaughter age for cost effective production. Lower liveweight weaners have a greater protein requirement for optimal weight gain, and the threshold entry liveweight for satisfactory performance in this feeding system was not yet established. The objective of this study was to quantify the effect of the entry liveweight of weaners on liveweight gain in the fodder beet feeding system. A group of 392 rising 1-year-old beef cattle fed using this system were divided at entry into three groups on unfasted liveweight (kg): A, 290-370; B, 240-260; and the remaining animals. The heaviest (group A: steer n=67, 316 ±2.7 kg; heifer n=45, 312 ±2.5 kg) and lightest (group B: steer n=77, 249 ±0.7 kg; heifer n=19, 251 ±1.0 kg) groups were then treated identically on ad libitum fodder beet to compare liveweight gain across 130 days on crop. The mean liveweight daily gain (kg/ day) for group A was significantly greater than group B, and greater for the steers compared to heifers in group A (0.98 and 0.85), but not in group B (0.82 and 0.81). Mean liveweight gain as a proportion of entry liveweight was greater in group B, and greater in steers. Both mean daily liveweight gain and mean liveweight gain as a proportion of entry liveweight were positively correlated with entry liveweight, but the R2 of both was low (0.14 and 0.05, respectively). Mean daily liveweight gain values of this magnitude are greater than those previously reported for alternative winter crops, and satisfactory for finishing beef cattle in this system. This study suggests the use of beef cattle above 240 kg liveweight as weaners in this fodder beet feeding system, both steers and heifers, is satisfactory for achieving acceptable slaughter liveweight before 18 months old. Keywords: beef production, fodder beet, finishing cattle, ad libitum fodder beet intakes.

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Cracker shape modifies ad libitum snack intake of crackers with cheese dip

British Journal Of Nutrition ◽

10.1017/s0007114520002056 ◽

2020 ◽

Vol 124 (9) ◽

pp. 988-997 ◽

Cited By ~ 1

Author(s):

Arianne van Eck ◽

Anouk van Stratum ◽

Dimitra Achlada ◽

Benoît Goldschmidt ◽

Elke Scholten ◽

...

Keyword(s):

Energy Intake ◽

High Energy ◽

Crossover Design ◽

Intake Rate ◽

Eating Rate ◽

Video Recordings ◽

Food Properties ◽

Moderate Energy ◽

Ad Libitum ◽

Energy Intake Rate

AbstractFood and energy intake can be effectively lowered by changing food properties, but little is known whether modifying food shape is sufficient to influence intake. This study investigated the influence of cracker shape and cheese viscosity on ad libitum intake of cracker–cheese combinations. Forty-four participants (thirteen males, 23 (sd 3) years, BMI 21 (sd 2) kg/m2) participated in four late afternoon snack sessions (2 × 2 randomised crossover design). Iso-energetic crackers were baked into flat squares and finger-shape cylindrical sticks and combined with a cheese dip varying in viscosity. Approximately eighty crackers and 500 g cheese dip were served in separate large bowls. Participants consumed crackers with cheese dip ad libitum while watching a movie of 30 min. Dipping behaviour and oral processing behaviour were measured simultaneously by hidden balances under the cheese bowls and video recordings. Cracker intake (28 (sem 1) crackers) of cracker–cheese combinations was not influenced by cracker shape. Cheese intake of cracker–cheese combinations was 15 % higher for flat-squared than finger-shape crackers (131 kJ, P = 0·016), as a larger amount of cheese was scooped with flat-squared crackers (2·9 (sem 0·2) v. 2·3 (sem 0·1) g cheese per dip, P < 0·001) and showed higher eating rate and energy intake rate (P < 0·001). Eating rate over snacking time decreased by reducing bite frequency (P < 0·001) while cheese dip size remained fairly constant (P = 0·12). Larger energy intake from condiments was facilitated by increased cracker surface, and this did not trigger earlier satiation. Changing food carrier surface may be a promising approach to moderate energy intake of often high energy dense condiments, sauces and toppings.

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