Trough half empty: Pregnant sows are fed under half of their ad libitum intake

2020 ◽  
Vol 29 (2) ◽  
pp. 151-162 ◽  
Author(s):  
E Read ◽  
EM Baxter ◽  
M Farish ◽  
RB D'Eath
Keyword(s):  
Small Groups ◽  
Food Restriction ◽  
Daily Intake ◽  
Feed Restriction ◽  
Healthy Weight ◽  
Eating Rate ◽  
Large White ◽  
The Third ◽  
Ad Libitum Intake ◽  
Standard Ration

Pregnant (dry) sows (S) are fed a rationed amount of feed to maintain healthy weight and production but this does not satisfy their hunger. This study measured the extent of feed restriction compared to sows' desired intake. Forty-seven Large White × Landrace sows were housed in small groups with straw bedding and individual feeding stalls. Following three days on a standard ration of 2.5 kg, they were offered 10 kg a day of commercial dry sow feed for three days, split into four 2.5-kg meals a day which enabled individual intakes to be measured. This quantity was effectively (maximum daily intake 9.4 kg). Mean(± SEM) intake per day over the three days was 5.67 (± 0.24) kg, compared to the 2.5-kg standard ration. The ration thus provides less than half (44.1%) of sows' desired intake. Behaviour on their third rationed day was compared with behaviour on the third day of . Eating rate and the display of hunger-related behaviours, particularly following the morning feed, was greater under ration feeding; sows spent more time in the food stall and less in the straw bed, and more time active rather than resting. During ration-feeding sows also chewed and nosed more at straw bedding and pen equipment and used the drinker more after their morning meal than when they were fed . Eating rate on the last rationed day was positively correlated with feed intake on each of the days. Despite an EU requirement for fibre to be added to diets to ameliorate this problem, and the provision of straw bedding, hunger resulting from food restriction remains a welfare concern for dry sows.

The influence of intake of dietary energy in pregnancy and lactation upon sow productivity

1968 ◽  
Vol 71 (2) ◽  
pp. 215-222 ◽  
Author(s):  
F. W. H. Elsley ◽  
R. M. MacPherson ◽  
I. McDonald
Keyword(s):  
Daily Intake ◽  
Dietary Energy ◽  
Large White ◽  
Treatment Groups ◽  
Daily Energy ◽  
Reproductive Life ◽  
Pregnancy And Lactation ◽  
Daily Intakes ◽  
Practical Implications ◽  
In Pregnancy

SUMMARYFifty-two Large White gilts, arranged in thirteen groups of four litter sisters, were allocated at mating to one of four treatment groups. These treatments, arranged as a 2 × 2 factorial, allowed daily energy intakes in pregnancy of 8·3 Meal (H(e)) or 5·2 Meal (L(e)) and of average daily intake during lactation of 20 Meal (h(e)) or 13·8 Meal (m(e)). Daily intakes of protein, minerals and vitamins were similar for all treatments. There were no consistent differences in health or breeding regularity between the treatments.The H(e) sows had a net gain in pregnancy 22 kg greater than the L(e) sows. Feeding the higher level in lactation (h(e) resulted in a reduced sow weight loss during lactation of 20, 12 and 10 kg in the first, second and third parities respectively, as compared with the m(e) sows. There were no consistent effects on the numbers of pigs born apart from the first litter in which L(e) sows produced significantly larger litters at birth. The higher energy intakes in pregnancy and lactation led to very similar increases in the weights of the piglets, of the order of 0.1 kg at birth, 0.4 kg at 3 weeks of age, and 1.1 kg at 8 weeks of age. Sowsgiven the same overall energy intake throughout their reproductive life (H(e) m(e), L(e) h(e)) at the end of the third litter had similar live weights and had produced a similar total weight of weaned pigs. The practical implications of these results are discussed.

From Seeker to Finder: A Study in Seventeenth-Century English Spiritualism Before The Quakers

1948 ◽  
Vol 17 (4) ◽  
pp. 299-315 ◽  
Author(s):  
George Arthur Johnson
Keyword(s):  
Seventeenth Century ◽  
Civil Wars ◽  
Small Groups ◽  
Holy Spirit ◽  
British History ◽  
The Third ◽  
The Holy Spirit ◽  
Third Person ◽  
The Third Person ◽  
The Trinity

The period of the Civil Wars and Commonwealth in England was one of the most momentous epochs in British history. For small groups of people the decade of the 1640's inaugurated a New Age—an age in which the Holy Spirit reigned triumphant. Such believers reached the zenith of Puritan “spiritualism,” or that movement which placed the greatest emphasis upon the Third Person of the Trinity.

Interactions between weaning age, weaning weight, sex, and enzyme supplementation on growth performance of pigs

2002 ◽  
Vol 53 (8) ◽  
pp. 939 ◽  
Author(s):  
F. R. Dunshea ◽  
D. K. Kerton ◽  
P. D. Cranwell ◽  
R. G. Campbell ◽  
B. P. Mullan ◽  
...  
Keyword(s):  
Feed Intake ◽  
Feed Conversion ◽  
Large White ◽  
Weaning Weight ◽  
Exogenous Enzyme ◽  
The Third ◽  
Main Effect ◽  
Weaning Age ◽  
Enzyme Supplementation ◽  
Daily Gain

Digestive capacity of early-weaned pigs may be insufficient to fully digest many ingredients currently used in weaner diets. The aim of this experiment was to determine whether an exogenous enzyme preparation with broad carbohydrase activity could benefit pigs that developmentally might be immature at weaning, especially with regard to gastrointestinal development. Eighty Large White × Landrace pigs were used in a 2 × 2 × 2 × 2 factorial experiment with the factors being: weaning age (14 or 24 days), weaning weight (heavy or light), sex (boar or gilt), and dietary Biofeed Plus CT (0 or 500 μg/g) which contained fungal xylanases, pentosanases and β-glucanases. Pigs were housed individually and given a wheat-based (550 g/kg) diet containing 15.0 MJ DE and 15.9 g lysine/kg on an ad libitum basis for 21 days. The diet also contained 50 g/kg of soybean meal and 50 g/kg of lupin (Lupinus�angustifolius) kernels. The liveweights of heavy (H) pigs weaned at 24 or 14 days and light pigs (L) weaned at 24 or 14 days were 7.9 and 5.3 and 5.2 and 3.9 kg, respectively. Pigs weaned at 14 days grew slower (157 v. 345 g/day) than those weaned at 24 days, although there was a suggestion of an interaction between age and weight at weaning (P = 0.081). Thus, H and L pigs weaned at 14 days grew at 148 and 166 g/day, whereas H and L pigs weaned at 24 days grew at 374 and 315 g/day, respectively. Although there was no main effect of enzymes on daily gain (248 v. 254 g/day, P = 0.80), feed intake (278 v. 284 g/day, P = 0.79), or feed conversion ratio (1.19 v. 1.25, P�=�0.35), there were interactions with weaning age on daily gain (P = 0.050) and feed intake (P = 0.060). Pigs weaned at 14 days grew slower (176 v. 138 g/day) and ate less (206 v. 174 g/day), whereas pigs weaned at 24 days grew faster (321 v. 369 g/day) and ate more (351 v. 394 g/day), when supplemented with enzymes. During the third week after weaning there were interactions between dietary enzymes and sex (P = 0.060) and dietary enzymes and age (P = 0.023) on daily gain. Thus, pigs weaned at 24 days and supplemented with Biofeed Plus CT grew more quickly during the third week (559 v. 460 g/day), whereas the converse was true for pigs weaned at 14 days (286 v. 334 g/day). Also, enzyme-supplemented boars grew better over this period (457 v. 371 g/day), whereas the converse was true for gilts (388 v. 423 g/day). In conclusion, these data clearly indicate that the greatest determinant of post-weaning performance under the present conditions was the age of the pigs at weaning. Dietary enzyme supplementation appeared most efficacious in boars weaned at an older age, although benefits did not become apparent until 2 weeks after weaning.

scholarly journals The Third AUTP Conference on ‘Teaching Psychodynamic Psychotherapy’

1986 ◽  
Vol 10 (9) ◽  
pp. 241-242
Author(s):  
John Denford
Keyword(s):  
Small Groups ◽  
Psychodynamic Psychotherapy ◽  
Personal Quality ◽  
The Third ◽  
University College

As is often the case, Oxford was damp and cold, but this did not deter the more athletic of us from trotting round lovely Christchurch meadows, or the more aesthetic from visiting an exhibition of Impressionist drawings in the Bodleian. The unpretentious, even homely, character of University College helped to draw a quite disparate group of psychotherapists together. This in turn was reinforced by the personal quality of all the formal presentations, and by the repeated experiences of small groups whose composition is stable. They allow the development of some degree of relationship both personal and intellectual in the course of two days.

Diet

2015 ◽  
Author(s):  
Elizabeth G Nabel
Keyword(s):  
Dietary Fiber ◽  
Daily Intake ◽  
Blood Lipid ◽  
Dietary Guidelines ◽  
Food Sources ◽  
Healthy Weight ◽  
Dietary Recommendations ◽  
Animal Products ◽  
Vegetable Foods ◽  
Fiber Proteins

An unhealthy diet is a major risk factor for chronic diseases such as cardiovascular diseases, cancer, diabetes, and conditions related to obesity. In the 20th century, the average American diet shifted from one based on fresh, minimally processed vegetable foods to one based on animal products and highly refined, processed foods, leading to an increased consumption of calories, fat, cholesterol, refined sugar, animal protein, sodium, and alcohol and far less fiber and starch than was healthful. As a result, more than one third of US adults are obese, with an estimated medical cost of $147 billion. Physicians have an important role in educating patients about healthful nutrition and in providing dietary guidelines. This module discusses the role of energy in weight loss; the structure of fat and cholesterol, their effects on blood lipid levels and cardiovascular risk, and related dietary recommendations; carbohydrates; dietary fiber; proteins; vitamin and mineral consumption; water and food consumption; and the relationship between diet and health. Tables review the principles of a healthy diet; recommended daily intake of fat and other nutrients; types of dietary fiber and representative food sources; types of vitamins; essential minerals and trace elements; and dietary guidelines for healthy people. Figures include a graph showing the percentage of adults who are healthy weight, overweight, and obese and the structure of fat and cholesterol. This review contains 2 highly rendered figures, 6 tables, and 37 references.

scholarly journals Productive performance, body chemical composition, and deposition of 42-day-old quail for meat subjected to quantitative dietary restriction

2017 ◽  
Vol 38 (2) ◽  
pp. 855 ◽  
Author(s):  
Daiane De Oliveira Grieser ◽  
Simara Márcia Marcato ◽  
Mariana Fátima Zanon Ferreira ◽  
Taciana Maria de Oliveira-Bruxel ◽  
Vittor Zancanela ◽  
...  
Keyword(s):  
Body Weight ◽  
Weight Gain ◽  
Chemical Composition ◽  
Dietary Restriction ◽  
Feed Efficiency ◽  
Daily Intake ◽  
Feed Restriction ◽  
Coturnix Coturnix ◽  
Protein Deposition ◽  
Ad Libitum

This study aimed to assess the effect of quantitative dietary restriction during refeeding on the performance, body chemical composition, and deposition, weight gain of organs and carcass parts of quails reared for meat (Coturnix coturnix coturnix). A total of 144 quails, between 11 to 42 days old, were distributed in a completely randomized design, 4x2 factorial scheme, at four levels of feed restriction (ad libitum, 30%, 50% and 70% restrictions on the daily intake ad libitum) for both genders. Therefore, there was eight treatments with three replicates and six birds each. At the tenth day of age, the animals were housed in cages, where remained for four days under adaptation. Dietary restriction was applied between the days 15 and 35 while refeeding was carried out from day 36 to 42. Compensatory weight gain (CWG), i.e. weight gain of organs and carcass parts, and feed efficiency (FE) were improved for quails under feed restriction. Fat (F), crude protein (CP), protein deposition rate (PDR) and fat in females (FDf) and carcass retained energy in females (CREf) increased linearly as restriction levels decreased. Maximum estimates of feed intake for males (MFIm), compensatory weight gain for males (CWGm) and females (CWGf), feed efficiency for males (FEm), protein deposition for males (PDm) and carcass retained energy in males (CREm) were obtained with restriction levels of 43.56%, 30.56%, 63.93%, 62.63%, 80.25%, 1.94% and 09.34% if compared to ad libitum, respectively. As a result, we concluded that according to quantitative feed restriction level, significant increases in feed efficiency and body weight gain, as well as decreases in carcass fat throughout quail refeeding period. As for gender, given the existing sexual dimorphism, females lost greater body weight than males under dietary restriction, besides showing higher protein and fat gains in the carcass and an enhanced feed efficiency during refeeding.

Comparative rates of formation, in vivo, of 16-androstenes, testosterone and androstenedione in boar testis

1984 ◽  
Vol 103 (2) ◽  
pp. 179-186 ◽  
Author(s):  
E. L. Hurden ◽  
D. B. Gower ◽  
F. A. Harrison
Keyword(s):  
Binding Sites ◽  
Venous Blood ◽  
Peripheral Circulation ◽  
Total Radioactivity ◽  
Venous Blood Flow ◽  
Large White ◽  
The Third ◽  
Very High ◽  
Venous Plasma

ABSTRACT Three mature Large White boars were anaesthetized and received [7(n)-3H]pregnenolone by continuous infusion into right and left spermatic arteries for up to 180 min. Spermatic venous blood flow was measured by separate timed collections of completely diverted outflow from each testis and blood not sampled was returned to the peripheral circulation. The total radioactivity in plasma from each testis increased markedly during the first 60 min of infusion to reach a plateau from 80 to 180 min. Radiolabelling of 5α-androst-16-en-3-one, 5α-androst-16-en-3β-ol and -3α-ol showed similar patterns with ratios of mean radioactivity of 5:3:1 respectively between 80 and 180 min. In comparison, the amounts of tritiated 4,16-androstadien-3-one formed were very small. The radiolabelling of testosterone and 4-androstenedione occurred more rapidly than that of the 16-androstenes and reached maxima by 30 min. However the amounts were only one-fifth (testosterone) and one-tenth (4-androstenedione) those of the combined quantities of tritiated 16-androstenes. Addition of human chorionic gonadotrophin (hCG) to the infusate to one testis in each animal (so that 5000 i.u. hCG were delivered in 15–20 min) produced no change in the outputs of radiolabelled steroids although radioimmunoassay of spermatic venous plasma in samples from the third experiment showed a transient increase in the concentration of 4-androstene-3,17-dione during the hCG infusion. It is suggested the lack of response to hCG could be produced by saturation and down regulation of binding sites by the very high local concentrations of hCG. J. Endocr. (1984) 103, 179–186

scholarly journals 7. Associations between Polymorphisms in the DIO3 Gene and Reproductive Traits and Carcass Performance in Pigs

2016 ◽  
Vol 16 (2) ◽  
pp. 399-413
Author(s):  
Maria Oczkowicz ◽  
Anna Dunkowska ◽  
Katarzyna Piórkowska ◽  
Aurelia Mucha ◽  
Mirosław Tyra ◽  
...  
Keyword(s):  
Association Study ◽  
Candidate Gene ◽  
Carcass Traits ◽  
Reproductive Traits ◽  
Large White ◽  
The Third ◽  
Large White Breed ◽  
Population Average ◽  
White Breed ◽  
Carcass Performance

Abstract Recently, DIO3 gene has been proposed as a candidate gene for litter size in pigs. Moreover, it was shown that polymorphism in this gene is associated with carcass traits. In this study we identified several SNPs within coding sequence of DIO3 by HRM method and performed association study between two polymorphisms and reproductive and carcass traits in pigs bred in Poland. Analysis of 350 pigs of Landrace and Large White breed revealed several significant associations for rs80999359, like period between the second and third parities (2IP)(P<0.0008) in the whole population, period between the third and fourth parities (3IP) (P<0.022), number of piglets born alive (L3NBA) (P<0.0084) and number of piglets at 21 days (L3NB21d) (P<0.0176) at the third parity in Large White as well as period between the second and third parities (2IP) (P<0.0012) in Landrace breed. The second polymorphism (rs80983654) was associated with 1IP (P<0.0218), number of piglets born alive at the fourth parity (L4NBA, P<0.027), number of piglets at 21 day at the fourth litter (L4NB21d, P<0.01), in the whole population, average number of piglets born alive (ANBA, P<0.01250), average number of piglets at 21 day (ANB21d, P<0.009), average interparity period (AIP, P<0.016), age at the first parity (1AP, P<0.003), (1IP, P<0.001, L4NBA, P<0.017, L4NB21d, P<0.005) in Large White breed. In contrast, we have found only few associations between DIO3 polymorphisms and carcass traits. rs80999359 was associated with backfat thickness (p<0.01) while rs80983654 with the weight of ham. Our results suggest that polymorphisms within DIO3 gene may be associated with reproductive traits.

Starvation induced anoestrus: effect of chronic food restriction on body weight, its influence on oestrous cycle and gonadotrophin secretion in rats

1983 ◽  
Vol 104 (4) ◽  
pp. 402-409 ◽  
Author(s):  
U. A. Knuth ◽  
H. G. Friesen
Keyword(s):  
Weight Loss ◽  
Body Weight ◽  
Food Restriction ◽  
Oestrous Cycle ◽  
The Third ◽  
Serum Lh ◽  
Gonadotrophin Secretion ◽  
Normal Chow ◽  
Chronic Food Restriction ◽  
Intact Rats

Abstract. To test the effect of chronic starvartion on gonadotrophin secretion and oestrous cycles, rats were fed 50% of their normal chow consumption for 16 days. This caused an increasing rate of anoestrus which became significant during the third expected cycle (6 of 10 rats, P < 0.02) and increased to 8 of 10 rats (P < 0.0001) between day 12 and 16. The accompanying weight loss was around 13 and 17%, respectively. Pituitary weights in intact rats killed on dioestrus became significantly different after 8 days of chow reduction (12.8 ± 0.2 vs 11.3 ±0.4 mg, P < 0.02) with further reductions in groups killed after 12 and 16 days. At this time dioestrous serum FSH levels were significantly inceased in starved rats (112 ± 16 vs 161 ± 13 ng/ml, P < 0.01), while serum LH levels decreased significantly after 12 days (25.0 ± 3.4 vs 13.1 ± 8.8 ng/ml, P < 0.001). Starvation decreased the LH response to LRH administration compared to pro-oestrous controls (1934 ± 672 vs 289 ± 39 ng/ml, P < 0.05), whereas the FSH response was not impaired (457 ± 91 vs 336 ± 54 ng/ml, P > 0.05). In contrast to this pituitary content of LH was similar in both groups, while FSH content was significantly higher in starved animals (13.6 ± 1.7 vs 19.8 ± 1.2 μg, P < 0.01). Chronic starvation immediately after ovariectomy did not affect the post-castrational rise of gonadotrophins. However, LRH administration caused higher serum FSH levels in starved rats (1540 ± 91 vs 1833 ± 90 ng/ml, P < 0.05), whereas LH values did not differ (908 ± 192 vs 721 ± 153 ng/ml, P> 0.05). Gonadotrophin content per pituitary in castrated rats after 16 days of starvation was unchanged.

scholarly journals Use of ractopamine during compensatory gain of finishing pigs on carcass and meat performance and quality

2017 ◽  
Vol 69 (6) ◽  
pp. 1660-1668 ◽  
Author(s):  
E.M.J. Barbosa ◽  
A.M. Bridi ◽  
A.K. Novais ◽  
R.K.S. Santos ◽  
G. Frederico ◽  
...  
Keyword(s):  
Weight Gain ◽  
Food Restriction ◽  
Fiber Diameter ◽  
Live Weight ◽  
Feed Restriction ◽  
Finishing Pigs ◽  
Feed Conversion ◽  
Ethereal Extract ◽  
Ad Libitum ◽  
Compensatory Gain

ABSTRACT The objective of this study was to evaluate the effects of compensatory gain associated with the use of 10ppm ractopamine after a period of feed restriction in finishing pigs on performance, carcass and meat quality. Twenty castrated males and 20 females, at 110 days of age and 66.137±6.13kg live weight, were submitted to four treatments using a 2 x 2 factorial design (fed ad libitum or with 20% restriction between 0(21 days of age and fed with or without 10ppm ractopamine for 22(42 days of experimentation), with 10 replicates (animals). There was no interaction between the factors for any of the evaluated parameters. Animals treated with ractopamine presented better weight gain (1.083 versus 1.259kg), feed conversion (2.910 versus 2.577), warm and cold carcass weight (86.08 versus 89.00 and 83.46 versus 87.20kg, respectively), loin depth (63.02 versus 68.40mm), loin eye area (41.43 versus 46.59mm2) and muscle fiber diameter (27.48 versus 35.85μm). Animals submitted to feed restriction followed by ad libitum feed presented compensatory gain without losses to carcass and meat characteristics, but with a reduction in the ethereal extract (2.19 versus 1.64%) and lower water loss due to thawing in the meat (11.35 versus 9.42%). The effects of compensatory gain after food restriction and ractopamine are independent of the parameters evaluated.

Sign in / Sign up

Export Citation Format

Share Document