Effect of average daily food intake on production performance in growing pigs

Kanis, E.

doi:10.1017/s0003356100003172

Cited by 26 publications

(12 citation statements)

References 8 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Furthermore, a gradually decreasing slope can be explained by a decreasing proportion of lean gain in the total body gain (Table 6), and(or) by a change in composition of the lean tissue. Diminishing returns of lean tissue gain with feed intake were also reported by Kanis (1988). The decrease of the lean proportion in the gain (Table 6 ) showed that at low intake levels the pigs have a preference for muscle gain, whereas the proportion of fat tissue gain increases at higher intake levels.…”

Section: Effect Of Energy Intake Between 45 and 85 Kilogramsmentioning

confidence: 53%

Performance and body composition of finishing gilts (45 to 85 kilograms) as affected by energy intake and nutrition in earlier life: I. Growth of the body and body components.

Bikker

Verstegen

Kemp³

et al. 1996

Journal of Animal Science

View full text Add to dashboard Cite

Forty-eight commercial hybrid gilts were used to determine the effects of energy intake from 20 to 45 kg on the relationship between energy intake and weight gain of the body and body components from 45 to 85 kg. Two groups of 24 gilts received a single diet either at 2.2 (restricted) or 3.7 (control) times maintenance (M) from 20 to 45 kg. From 45 to 85 kg the pigs were fed the same diet at one of six intake levels (1.7, 2.2, 2.7, 3.2, or 3.7 x M, or ad libitum). At 85 kg, the gilts were dissected into organs, lean tissue (trimmed major joints), and other carcass parts (fat fraction). In the restricted gilts, body and lean tissue gain between 45 and 85 kg increased curvilinearly with increasing energy intake from 432 to 1,412 g/d and from 228 to 507 g/d, respectively. In the control gilts, body and lean tissue gain increased from 394 to 1,201 g/d and from 238 to 508 g/d, respectively. The percentage of lean tissue in the carcass decreased curvilinearly with increasing energy intake from 62.9 to 56.5%, and from 62.5 to 53.9% in the restricted and control gilts, respectively. The restricted gilts gained on average 140 g/d faster (P < .001) and their carcass lean tissue content at slaughter was approximately 3% higher (P < .001). These differences increased with increasing energy level between 45 and 85 kg. The increased gain was largely the result of an increase in organ growth and gut contents and was only evident up to 65 kg. The higher lean content at 85 kg in previously restricted gilts was not the result of compensation in lean gain but was already present at the end of the restriction phase at 45 kg.

show abstract

Section: Effect Of Energy Intake Between 45 and 85 Kilogramsmentioning

confidence: 53%

Performance and body composition of finishing gilts (45 to 85 kilograms) as affected by energy intake and nutrition in earlier life: I. Growth of the body and body components.

Bikker

Verstegen

Kemp³

et al. 1996

Journal of Animal Science

View full text Add to dashboard Cite

show abstract

“…This may be related to the shape of their FI curve, which is flatter, on average, with less curvature and no maximum as also found by Kanis (1983). It is well known that gilts are leaner than barrows.…”

mentioning

confidence: 56%

“…Number of litters per batch and assignment of animals to feeding levels are given by Kanis (1988). Pigs were crossbreds between Dutch Yorkshire and Dutch Landrace and were housed and fed individually with free access to water.…”

Section: Animals and Feedingmentioning

confidence: 99%

Daily gain, food intake and food efficiency in pigs during the growing period

Kanis¹,

Koops²

1990

Anim. Sci.

Self Cite

View full text Add to dashboard Cite

The non-linear model y = ae {~hw~Llw ) was fitted to weekly calculated daily gain (DG), daily food intake (FI) and food efficiency (FE) of 653 barrows and gilts fed ad libitum or restrictedly during a growing period from 27 to 108 kg live weight. Where y was DG, FI or FE, W was live weight and a, b and c were parameters. The model fitted well to the expected course of the traits, with an accuracy similar to that of quadratic polynomials. Parameters for one trait could simply be derived from the parameters for the other two traits. For each trait, four basic patterns were distinguished, depending on the signs of b and c. Curves with a maximum (b > 0 and c > 0) occurred most frequently. In cases of curves with a maximum, the model could be reparameterized to a model with parameters having a simple biological meaning.Coefficients of determination in barrows averaged 0-29 for DG, 0-88 for FI and 0-45 for FE, whereas these values were somewhat lower in gilts. With ad libitum feeding, a DG curve with a maximum was fitted in proportionately 0-83 of the barrows and 0-61 of the gilts. The maximum DG was on average at live weights of 64 kg for barrows and 77 kg for gilts. A maximum in the FI curve was predicted in proportionately 0-60 of the barrows and 0-39 of the gilts. Curves for DG and FI in gilts were less curvilinear than in barrows. FE curves, with ad libitum feeding, had a maximum in proportionately 0-59 of the barrows and 0-52 of the gilts. This predicted maximum FE was, on average, before the start of the growing period. Gilts had a higher FE than barrows from 35 kg body weight onwards, and the difference increased with increasing live weight. Differences in FE between ad libitum and restricted feeding were small, with a tendency for animals fed at a restricted feeding level to be more efficient at the end of the growing period.Average FE curves and individual FI or DG curves were used for indirect prediction of individual DG or FI curves, respectively. The correlation between directly and indirectly predicted values of DG and FI at live weights of 30, 65 or 100 kg was about 0-7 in ad libitum fed barrows and gilts, and greater than 0-8 in pigs fed at a restricted level. This indicates that the model is suitable to predict and control the course of individual daily gain by influencing the course of food intake.

show abstract

“…Milewska and Grudniewska (1999) observed also negative correlation coefficients between the daily gain of body weight and lean meat content of young boars of Polish Large White, Polish Landrace, Hampshire and Duroc breed performance tested according to previous methodology, they amounted -0.194; -0.551**; -0.214; -0.186, respectively. The results of other authors (Buczyński, et al, 2001;Curran, 1995a, 1995b;Kanis, 1988;Kapelański, et al, 2002;Koczanowski, et al, 2001;Milewska and Falkowski, 2001;Urbańczyk, et al, 1999) also suggest, that the high growth rate may unfavorably impacts on the slaughter value not leading to expected improvement of meat content and causing increase of fat content (especially in ad-libitum feeding). It should be noticed that in presented paper in case of 3 groups of young crossbred boars, i.e.…”

Section: Discussionmentioning

confidence: 91%

The relationships between the performance test results of young crossbred boars

Nowachowicz¹,

Michalska²,

Bucek³

et al. 2012

JCEA

View full text Add to dashboard Cite

The relationships between the most important results of performance test of 3.876 young crossbred boars, expressed as calculated correlation coefficients were determined. The animals came from 6 crossing variants: Hampshire x Belgian Landrace (H x BL), Hampshire x Duroc (H x D), Hampshire x Pietrain (H x P), Duroc x Pietrain (D x P), Pietrain x Hampshire (P x H) and Pietrain x Duroc (P x D). Young crossbred boars were performance tested in years [2004][2005][2006][2007][2008] in Poland in Bydgoszcz Breeding Region. The traits taken into account were: age and body weight on the test day, daily gain of body weight standardized on 180 th day of life, backfat thickness in P 2 and P 4 points, height of loin eye in P 4 point, lean meat content and the performance test selection index. In a total results summary from years 2004-2008 in tested groups of young crossbred boars (except H x BL) negative and in most cases statistically high significant correlations were proved between the growth rate and standardized backfat thickness in P 2 and P 4 points and in young crossbred boars came from 3 following crossing variants: H x BL, P x H, P x D negative and statistically high significant correlation coefficients were observed between the daily gain of body weight and standardized lean meat content, which may show the unfavourable impact of high growth rate on meat content.

show abstract

Effect of average daily food intake on production performance in growing pigs

Cited by 26 publications

References 8 publications

Performance and body composition of finishing gilts (45 to 85 kilograms) as affected by energy intake and nutrition in earlier life: I. Growth of the body and body components.

Performance and body composition of finishing gilts (45 to 85 kilograms) as affected by energy intake and nutrition in earlier life: I. Growth of the body and body components.

Daily gain, food intake and food efficiency in pigs during the growing period

The relationships between the performance test results of young crossbred boars

Contact Info

Product

Resources

About