A comparison of feeding growing pigs once or twice daily

1963 ◽  
Vol 60 (3) ◽  
pp. 389-391 ◽  
Author(s):  
R. Braude ◽  
M. Jill Townsend ◽  
G. Harrington ◽  
J. G. Rowell
Keyword(s):  
Growth Rate ◽  
Growing Pigs ◽  
Carcass Quality ◽  
Food Conversion ◽  
Once Daily

1. A co-ordinated trial has been carried out at 17 centres to compare the effects on performance and carcass quality of feeding growing pigs once or twice daily.2. No significant differences were found between growth rate, efficiency of food conversion or length of pigs on the two treatments.3. Killing out percentage was on average 0·92% worse for the pigs fed once daily, a significant effect, probably because the pigs on the two treatments received different amounts of food at the last feed before slaughter.

Comparison of three practical rations for growing pigs

1965 ◽  
Vol 64 (1) ◽  
pp. 87-91 ◽  
Author(s):  
R. Braude ◽  
Marilyn R. Lyon ◽  
J. G. Rowell
Keyword(s):  
Growth Rate ◽  
Growing Pigs ◽  
Carcass Quality ◽  
Progeny Testing ◽  
Food Conversion ◽  
Fattening Pigs

A co-ordinated trial has been carried out at twenty-six centres to compare the effects of three practical rations on performance and carcass quality of fattening pigs. The simplest of these was the ‘Shinfield ration’ (SR) and this was compared with the more elaborate National Pig Progeny Testing Station rations, the ‘old’ ration (OPT) as used until January 1963 and the ‘new’ ration (NPT) as used since January 1963.The OPT ration was significantly worse than the SR and NPT rations in respect of growth rate and food conversion. The simpler and cheaper SR ration did not differ significantly from the NPT ration. Ration differences were not significant for any carcass measurements.

A note on the use of distillers' by-products in diets for growing pigs

1969 ◽  
Vol 11 (2) ◽  
pp. 259-261 ◽  
Author(s):  
R. M. Livingstone ◽  
D. M. S. Livingston
Keyword(s):  
Growth Rate ◽  
Crude Protein ◽  
Dry Matter ◽  
Growing Pigs ◽  
Distillers Grains ◽  
Carcass Quality ◽  
By Products

SUMMARYA by-product of the distilling industry designated ‘distillers’ grains plus solubles' was evaluated using forty-eight growing pigs. The product was included at 0, 14·7 and 25% in three diets in which the proportion of other constituents was adjusted to give similar concentrations of TDN, dry matter and crude protein.The performance and carcass quality of pigs receiving 0% and 14·7% of the by-product in the diet was similar, but inclusion at 25% significantly reduced growth rate (g/day) from 632 for the 0% diet to 578.

Labour saving in feeding of fattening pigs

1957 ◽  
Vol 48 (3) ◽  
pp. 322-325 ◽  
Author(s):  
R. Braude ◽  
J. G. Rowell
Keyword(s):  
Growth Rate ◽  
Carcass Quality ◽  
Food Conversion ◽  
Limited Evidence ◽  
Fattening Period ◽  
Fattening Pigs

In a co-ordinated experiment involving twenty centres and 558 pigs it was found that the growth rate, efficiency of food conversion and carcass quality of the pigs were not affected when one after-noon meal was omitted each week throughout the fattening period, provided the amount of meal thus saved was distributed between the remaining feeds during each week.Limited evidence is presented to show that similar results may be obtained when two afternoon feeds are omitted each week.

scholarly journals The effect of supplementation of liquid and crystalline lysine to barley-distillers solids diet on the performance and carcass quality of pigs

1992 ◽  
Vol 1 (6) ◽  
pp. 559-567
Author(s):  
Jarmo Valaja
Keyword(s):  
Growth Rate ◽  
Conversion Efficiency ◽  
Live Weight ◽  
Growing Pigs ◽  
Crystalline Form ◽  
Carcass Quality ◽  
Feed Conversion ◽  
Feed Conversion Efficiency ◽  
High Level

The response to dietary lysine of liquid or crystalline form was examined in pigs fed on cereal protein dietsover the range of live weight from 25.0 to 95.0 kg. Forty individually fed growing pigs (20 gilts and 20castrated males) were allocated to four isonitrogenous diets consisting of barley, undehydrated distillers solids and a mixture of minerals and vitamins with lysine supplementation of 0.9 or 3.2 g pure lysine per kg DM in liquid or crystalline form to provide 7.1 or 9.1 g/FU total lysine, respectively. The pigs were given feed on a restricted scale twice daily. A high level of lysine supplementation significantly increased the growth rate and improved the feed conversion efficiency (p

The effect of frequency of feeding on the response by growing pigs to supplements of free lysine

1978 ◽  
Vol 39 (2) ◽  
pp. 265-270 ◽  
Author(s):  
E. S. Batterham ◽  
G. H. O'neill
Keyword(s):  
Growth Rate ◽  
Conversion Ratio ◽  
Growing Pigs ◽  
Food Conversion ◽  
Growth Responses ◽  
Once Daily ◽  
Daily Feeding ◽  
Food Conversion Ratio ◽  
Frequent Feeding

1. Six experiments, involving a total of 320 pigs, were conducted to examine the reponse of growing pigs to diets supplemented with free lysine when fed either once daily or in six equal portions at intervals of 3 h. The effect of dry or wet feeding on the response to free lysine was examined in Expt nos. 4 and 5. The assumption of linear lysine response over the range of lysine supplementation was examined in Expt no. 6.2. A significant (P < 0.01) interaction between lysine supplementation and frequency of feeding occurred for growth rate and food conversion ratio. Growth responses to the supplements of free lysine with once daily feeding were only 67 % of that achieved with frequent feeding.3. Wet feeding had no effect on the growth responses to free lysine supplements.4. The lysine response was linear over the range of lysine supplementation examined.5. The implications of these results to the interpretation of experiments examining the lysine requirements of pigs are discussed.

The Effect of Feeding System on the Carcass Quality of Crossbred Lambs with Texel

2020 ◽  
Vol 68 (1) ◽  
pp. 17-24
Author(s):  
Angela Cividini ◽  
Dušan Terčič ◽  
Mojca Simčič
Keyword(s):  
Growth Rate ◽  
Meat Quality ◽  
Carcass Quality ◽  
Quality Traits ◽  
Feeding System ◽  
Ad Libitum ◽  
Daily Gain ◽  
Effect Of Feeding ◽  
Carcass Cuts

The aim of this study was to estimate the effect of feeding system on the growth rate and carcass quality of crossbred Improved Jezersko-Solčava x Texel (JSRT) lambs and to evaluate the effect of sex on these traits. The trial was conducted in nature according to the traditional rearing systems. The trial included 44 crossbred lambs, which were born and reared until the slaughter in three different flocks. In the age of 10 days suckled lambs were offered with ad libitum corresponding diets according to the feeding system. All lambs were slaughtered in seven consecutive days by the same procedure. The effect of feeding system significantly affected daily gain from birth to slaughter, EUROP carcass conformation and shoulder width. Likewise, the effect of sex significantly affected daily gain from birth to slaughter and internal fatness of carcasses. According to carcass cuts the feeding system significantly affected only the proportion of neck and leg. Considering meat quality traits, feeding system had a significant effect on the pH 45 and CIE a* values. In this study, we could speculate that more than the feeding system the growth and the carcass traits as well as meat traits were affected by the amount of the supplement.

THE EFFECTS OF SEX AND AGE OF MALE AT CASTRATION ON GROWTH AND CARCASS QUALITY OF YORKSHIRE SWINE

1961 ◽  
Vol 41 (1) ◽  
pp. 30-39 ◽  
Author(s):  
L. A. Charette
Keyword(s):  
Growth Rate ◽  
Iodine Number ◽  
Feed Efficiency ◽  
Carcass Characteristics ◽  
Live Weight ◽  
Carcass Quality ◽  
Selection Of ◽  
Effect On Growth

The effects of sex and age of castration of males on growth rate, feed efficiency and carcass characteristics in bacon type swine were measured using 16 pigs each as gilts, entire boars, and boars castrated at birth, 6, 12, 16, and 20 weeks of age. Castration at 20 weeks was too late since some pigs reached 200 pounds live weight before that age. Boars consumed less feed daily than barrows and gilts, were thinner in loin fat, and yielded a higher percentage of shoulder than gilts. The carcasses of boars and gilts were longer, had less fat covering over the shoulder and back, a larger area of loin, and a higher iodine number than those castrated late. Acceptability tests showed that sex or age of castration did not affect the flavour, odour, or tenderness of the meat.Purebred breeders can delay castration for better selection of boars without any serious effect on growth, physical carcass characteristics, and feed requirements. Although the market discriminates against boars, it appears questionable whether castration is necessary when boars are slaughtered at 200 pounds before they reach the age of 150 days.

scholarly journals Utilization of free lysine by growing pigs

1981 ◽  
Vol 46 (1) ◽  
pp. 87-92 ◽  
Author(s):  
E. S. Batterham ◽  
R. D. Murison
Keyword(s):  
Weight Gain ◽  
Live Weight ◽  
Conversion Ratio ◽  
Growing Pigs ◽  
Weight Basis ◽  
Food Conversion ◽  
Once Daily ◽  
Daily Feeding ◽  
Frequent Feeding ◽  
Food Conversion Efficiency

1. The results of nine estimates of the efficiency of utilization of supplements of free lysine by growing pigs fed once daily and reported by Batterham (1974) and Batterham & O'Neill (1978) were re-analysed using carcass rather than live-weight values as the criteria of response.2. The efficiency of utilization of free lysine with once daily feeding relative to frequent feeding was 0·53 using carcass gain as the criterion of response (P < 0·001), and 0·56 using food conversion efficiency on a carcass basis (P < 0·001). These estimates were lower than estimates of 0·67 using live-weight gain (P < 0·01) and 0·77 using food conversion ratio on a live-weight basis (P < 0·05).3. The results indicate that current estimates of the lysine requirements of pigs that are based on responses to supplements of free lysine under once daily feeding regimens may be 10–30% over-estimated, as a result of incomplete utilization of the free lysine.

Amino acid requirements of growing pigs 5. The interaction between isoleucine and leucine

1984 ◽  
Vol 38 (2) ◽  
pp. 257-261 ◽  
Author(s):  
S. J. Taylor ◽  
D. J. A. Cole ◽  
D. Lewis
Keyword(s):  
Amino Acid ◽  
Conversion Efficiency ◽  
Live Weight ◽  
Basal Diet ◽  
Growing Pigs ◽  
Carcass Quality ◽  
Food Conversion ◽  
Isoleucine Leucine ◽  
Plasma Urea ◽  
Food Conversion Efficiency

ABSTRACTThirty-two female growing pigs (25 to 55 kg live weight) were subjected to four dietary treatments combining two levels of isoleucine and two levels of leucine to investigate the effects of leucine supply on the requirement for isoleucine.Results for daily live-weight gain, food conversion efficiency and carcass quality judged by ham dissection indicated that 3·8 g isoleucine per kg diet was marginally adequate for the growing pig in diets containing 13·4 g leucine per kg. An interaction between dietary leucine and isoleucine was demonstrated. Increasing the dietary leucine concentration to 20·4 g/kg clearly resulted in a deficiency of isoleucine in the basal diet, as daily gain, food conversion efficiency and carcass quality were significantly improved by increasing the isoleucine concentration from 3·8 g to 4·5 g/kg diet. Dietary leucine concentration did not influence performance at the higher level of isoleucine supply. Changes in plasma urea and amino acid concentrations confirmed the findings from the growth experiment of the interaction between isoleucine, leucine and valine.

A note on the behaviour and performance of growing pigs provided with straw in a novel housing system

1993 ◽  
Vol 56 (2) ◽  
pp. 269-272 ◽  
Author(s):  
D. S. Arey ◽  
J. M. Bruce
Keyword(s):  
Growth Rate ◽  
Conversion Ratio ◽  
Growing Pigs ◽  
Housing System ◽  
Food Conversion ◽  
Large White ◽  
Daily Number ◽  
Ad Libitum ◽  
Number Of Visits ◽  
And Performance

AbstractStraw-Flow is a novel housing system for growing pigs which simplifies the handling of bedding and manure by allowing pigs to take unchopped straw from dispensers. Three groups of 50, 50 and 60 Large-White × Landrace pigs were housed in Straw-Flow pens from 5 to 90 kg. They were supplied daily with 50 to 100 g unchopped straw per pig and given food ad libitum. From 30 to 90 kg, mean growth rate was 863 g/day and food conversion ratio was 2·56 kg food per kg growth. The pigs' behaviour was divided approximately into: 0·820 lying, 0·100 active, 0·075 feeding and 0·005 drinking (on a proportional basis). There were no differences (P > 0·05) between groups or different weights for any of the behaviour categories. The pigs were less active before noon than after noon (P < 0·05). The daily number of visits to the drinker between weights 5 and 25 kg fell from 23·7 to 11·0 (P < 0·05). A single drinker, of new design, appeared to be adequate for a group of 50 to 60 pigs.

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