The effect of duration and temperature of simulated transport on the performance of early-weaned piglets

2001 ◽  
Vol 81 (2) ◽  
pp. 199-204 ◽  
Author(s):  
R. J. Berry ◽  
N. J. Lewis

The responses and tolerances of early-weaned piglets to transport are not well documented. It is believed that the additive stress incurred by transporting early-weaned pigs predisposes them to increased disease risk and compromised performance. The objective of this work was to investigate the relationship between two primary transportation stressors, duration and temperature, and their effects on piglet performance. Prior to housing on flatdecks at 30°C, transport was simulated by placing 17-d (± 1 d) old weaned piglets into wooden boxes of dimensions 1.2 × 1.2 × 1 m (space allowance range 0.18 to 0.36 m2 pig–1) with straw bedding. Two trials were conducted. In each trial, 96 piglets were randomly mixed in groups of four and assigned to the following simulated transport durations: no transport (control), 6 h, 12 h (Trial 2 only) and 24 h. Piglets undergoing transport simulation were kept at one of the following temperatures 20, 25 (Trial 1 only), 30 and 35°C. There was a significant interactive effect between transport duration and temperature upon liveweight change in the first 24 h in both trials (P < 0.01). The animals that incurred the greatest liveweight deficit after weaning relative to untransported control groups were predominantly either those that had been transported for 24 h at high transport temperatures (35 and 30°C) or those transported for 6 h at 20°C in Trial 1 and 35°C in Trial 2. The effect of simulated transport was measureable for up to 5 d post-transport. However, by 14 d post-transport there was no detectable influence of transport treatment on feed consumption or weight gain (P > 0.05). The study found piglets are able to recover and perform adequately in the early post-weaning period if extremes of transport duration and temperature are avoided. Key words: Transportation, early weaning, temperature, piglets

2011 ◽  
Vol 49 (No. 12) ◽  
pp. 542-548 ◽  
Author(s):  
J. Pintar ◽  
B. Homen ◽  
K. Gazić ◽  
D. Grbeša ◽  
M. Sikirić ◽  
...  

A 21-day experiment with day-old broilers was conducted in order to assess the effect of phytase supplementation to different cereals-soybean meal based diets on broiler performance and tibia ash. Diets were formulated to contain 4 different cereals (maize, wheat, triticale and barley), 2 levels of dietary calcium (0.6 and 1.0%) and 3 levels of supplemental phytase (0, 500 and 1 000 PU/kg). Supplemented phytase had beneficial effects on broiler performance. It significantly increased body weight gain (P &lt; 0.0003) and feed consumption (P &lt; 0.0361) by 6 and 7% in comparison with the control groups, respectively. No influence on feed conversion ratio and tibia ash was detected. Both body weight gain and feed intake were also significantly influenced by different cereals (P &lt; 0.0001 and 0.0348, respectively). The increasing dietary calcium level resulted in a significant increase in body weight gain (P &lt; 0.0024) and tibia ash (P &lt; 0.0016). Effects of 500 and 1 000 PU/kg were not statistically different between themselves. &nbsp;


1992 ◽  
Vol 72 (1) ◽  
pp. 107-116 ◽  
Author(s):  
R. G. Rotter ◽  
H. L. Trenholm ◽  
D. B. Prelusky ◽  
K. E. Hartin ◽  
B. K. Thompson ◽  
...  

The performance of growing pigs fed 2 mg kg−1 of one of several Fusarium graminearum metabolites (sambucinol, 15-acetyldeoxynivalenol, 3-acetyldeoxynivalenol, culmorin, dihydroxycalonectrin) with and without 6 mg kg−1 deoxynivalenol (DON) was examined in three preliminary studies. The only significant effects (P < 0.05) were seen in feed consumption, weight gain and feed efficiency due to the presence of DON in the diet. In addition, the appearance and degree of folding of the esophageal portion of the stomach were also different between pigs fed the DON-free and DON-contaminated diets, though the degree of significance varied between trials. Some small differences were seen in growth and feed consumption for certain metabolites, notably sambucinol and culmorin, with and without DON, but they were not significant (P > 0.05). The data indicate that, at the dietary concentrations used, the fungal metabolites tested in combination with DON do not interact with DON in growing pigs to any marked degree. Key words: Deoxynivalenol, DON, pigs, 15-acetyldeoxynivalenol, 3-acetyldeoxynivalenol, culmorin, sambucinol, dihydroxycalonectrin


2000 ◽  
Vol 80 (3) ◽  
pp. 529-531 ◽  
Author(s):  
P. J. Munro ◽  
A. Lirette ◽  
D. M. Anderson ◽  
H. Y. Ju

Two-hundred and nine purebred Yorkshire newly weaned piglets were used to determine the effect of the sweetener Stevia (Stevia rebaudiana) at 83.3, 167 or 334 mg kg−1 diet on feed consumption (FC), average daily gain (ADG) and feed to gain ratio (F/G) compared with treatments with 5% sucrose and no sweetener (control; C). The Stevia-containing diets did not appear to have detrimental effects on the FC and F/G ratios of the piglets when compared with C. The results indicated only a limited potential for Stevia as feed additive for piglets. Key words: Sweetener, palatability, Stevia, weaned pigs


1996 ◽  
Vol 76 (2) ◽  
pp. 267-269 ◽  
Author(s):  
D. J. Wood ◽  
A. Lirette ◽  
D. C. Crober ◽  
H. Y. Ju

One thousand day-old male chicken broilers housed in 16 floor pens to 42 d of age were used to study the effect of stevia on weight gain and feed consumption. The experimental design was a randomized complete block consisting of four diets (0%, 0.0085%, 0.0425% and 0.085% stevia) each replicated four times. Stevia did not appear to improve feed consumption or weight gain of broilers when used as a feed additive at the concentrations tested in this study. Key words: Broilers, stevia, feed additive, growth performance


1987 ◽  
Vol 67 (1) ◽  
pp. 217-220 ◽  
Author(s):  
L. M. LAWRENCE ◽  
E. H. JASTER ◽  
L. WISCHOVER ◽  
K. J. MOORE ◽  
H. F. HINTZ

Alfalfa hay treated with a commercial preservative containing 80% propionic and 20% acetic acid was evaluated as a feed for horses. In a two-choice preference test, horses preferred untreated hay (P < 0.05). When yearlings were fed either treated or untreated hay for 1 mo, there was no difference in feed consumption or weight gain indicating that when given no choice, horses find hay treated with propionic and acetic acid acceptable. Key words: Alfalfa, organic acid preservative, horse


1971 ◽  
Vol 13 (4) ◽  
pp. 613-618 ◽  
Author(s):  
Ch. V. Boucque ◽  
F. X. Buysse ◽  
B. G. Cottyn

SUMMARYTwo rearing experiments were carried out to study the effect of omitting three feeds per week from an early-weaning system on the performance of 110 male calves. From the third week the calves in the experimental groups received only one feed of milk substitute on Saturdays, at 11.00 hr; on Sundays they received no milk substitute at all; from Monday to Friday they were fed twice daily. The animals in the control groups received milk substitute twice daily during the 7 days of the week, quantity per feed being the same as for the experimental groups.The calves were weaned at 8 weeks in experiment 1 and at 5 weeks in experiment 2.In both experiments the calves in the control group had a significantly higher daily gain than the experimental calves during the third to the fifth weeks. From 6 to 16 weeks arid for the experiment as a whole no significant difference in weight gain or feed intake were observed. The omission of three feeds per week offered considerable advantages in the saving of labour and convenience of management.


1973 ◽  
Vol 17 (3) ◽  
pp. 317-320 ◽  
Author(s):  
Maria Kotarbińska ◽  
J. Kielanowski

SUMMARYFourteen Large White female pigs were mated at about 6 months of age and 90 kg live weight. Three of them gave birth to very small litters and were slaughtered a week after parturition at an average live weight of 166 kg. From the other 11 females 6-week-old litters with average an of 8-8 piglets were weaned. Twenty-four days after weaning the mothers, averaging 152 kg live weight, were slaughtered. Performance was compared with that of unmated females slaughtered at 90 or 130 kg live weight. After subtracting the amount of feed used normally for the production of weaned litters from the total feed consumption of the 14 females which farrowed, the feed intake per 1 kg live-weight gain was 3·67 kg, as compared with 3·43 kg and 4·46 kg in the groups slaughtered at 90 or 130 kg live weight, respectively. The average daily protein deposition in the 14 females together with their litters was 119·6 g, compared with 104·1 and 81·4 g in the control groups.


2012 ◽  
Vol 33 (2) ◽  
pp. 88
Author(s):  
Ratih Dewanti ◽  
Jafendi Hasoloan Purba Sidadolog ◽  
Zuprizal (Zuprizal)

<p>The experiment was carried out to observe the effect of sires and diets on the growth traits of Turi duck up to the age of eight weeks. There were five sires and 25 dams which produced 151 offspring used in the experiment. Three diets with equal nutrient balance but different concentration P1: {CP:EM= 1:145,EM 2482 kcal/kg:protein 17%}; P2 {CP:EM= 1:146 EM 2628 kcal/kg:protein 18%}; dan P3 {CP:EM= 1:144 (EM 2774 kcal/kg: protein 19%} were then applied. Phenotypic datasets on body weight, body weight gain, feed consumption and feed conversion parameters were collected. The result showed that sire had no effect on body weight, body weight gain and feed conversions of the offspring. Different diets, on the other hand affected feed consumption (lowest P3:822.37 g/head/weeks). Interactions between sires x age were then found to be significantly affected feed consumption.</p><p><br />(Key words: Sires, Diets, Growth, and Turi duck)<br /><br /></p>


1987 ◽  
Vol 67 (4) ◽  
pp. 903-907 ◽  
Author(s):  
W. D. MORRISON ◽  
E. AMYOT ◽  
L. McMILLAN ◽  
L. OTTEN ◽  
D. C. T. PEI

In the conduct of a four-period trial, forty-eight newly weaned piglets were randomly allocated to three treatments: (1) continuous infrared (CI), (2) operant infrared (OI), and (3) operant microwave (OM). The piglets subjected to the operant procedure initially underwent a learning phase, in which activation of a microswitch was associated with the delivery of heat. During the experimental phase, the duration of heat supply for both OI and OM was adjusted to 2, 4, 6 or 8 min according to a Latin square design. Each heat delivery interval lasted 48 h. The piglets responded to increasing duration of heat reward, for both OI and OM conditions, by decreasing (P < 0.05) the number of rewarded activations of the microswitch. It was estimated that for each increase of 1 min in duration of the reward, the piglets voluntarily decreased the number of rewarded activations by approximately 0.32 (P > 0.05) and 0.19 (P < 0.05) activations per hour, for the OI and OM conditions, respectively. Each minute increase in duration of the reward was also associated with a decrease of 1.32 min h−1 (P > 0.05) and 1.39 min h−1 (P < 0.05) of supplemental heat from OI and OM, respectively. There were no significant differences (P > 0.05) in total weight gain and feed/gain between treatments. Key words: Operant, thermoregulation, piglets, microwave


2008 ◽  
Vol 53 (No. 1) ◽  
pp. 9-16 ◽  
Author(s):  
J. Šiugždaité ◽  
A. Jerešiúnas ◽  
R. Stankevičius ◽  
J. Kulpys

The aim of this experiment was to determine the influence of “HP 300” soy protein concentrate (SPC) on the wellness, intestine microflora, growth rate and feed consumption compared with that of fish meal in weaned piglets. To create a balanced experiment on breed, gender, age and weight, two groups of 19 weaned piglets were composed. The first group was a control while the second group was experimental. The experiment was divided into two periods: the first period lasted for 27 days while the second lasted for 14 days. The duration of the experiment was 41 days in total. The composition of feed and sustenance were the same in both periods. The piglets from the second group receiving the feed without fish meal gained 69 g or 18.4% more (<I>P</I> > 0.05) weight on average than the piglets from the first group during the whole period. No essential differences in feed consumption per 1 kg of weight gain between the groups were identified during the whole period. While examining the amount of enterobacteria in faeces it was estimated that the amount of enterobacteria in the faeces of piglets of the second group decreased during the whole experimental period. At the end of experiment the amount of enterobacteria in the faeces of piglets of the second group gradually decreased by 12% compared with the enterobacteria amount at the start of experiment. The amount of enterobacteria in the faeces of piglets of the first group also decreased by 12%. However, the amount of enterobacteria in the faeces of piglets of the first group decreased more sharply than in piglets of the second group.


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