EurekaMag.com logo
+ Site Statistics
References:
47,893,527
Abstracts:
28,296,643
+ Search Articles
+ Subscribe to Site Feeds
EurekaMag Most Shared ContentMost Shared
EurekaMag PDF Full Text ContentPDF Full Text
+ PDF Full Text
Request PDF Full TextRequest PDF Full Text
+ Follow Us
Follow on FacebookFollow on Facebook
Follow on TwitterFollow on Twitter
Follow on Google+Follow on Google+
Follow on LinkedInFollow on LinkedIn

+ Translate

Effect of apparent ileal digestible lysine to energy ratio on performance of growing pigs at different dietary metabolizable energy levels






Journal of Animal Physiology & Animal Nutrition 83(4-5): 181-192, July

Effect of apparent ileal digestible lysine to energy ratio on performance of growing pigs at different dietary metabolizable energy levels

The present study investigated whether the optimum ratio between dietary apparent ileal digestible lysine and metabolizable energy (ME) in growing pigs is influenced by the energy density of the diet. Therefore, according to a bifactorial design, growing pigs were fed diets with 13.0 or 14.0 MJ ME/kg with ratios between apparent ileal digestible lysine and ME of 0.44, 0.53, 0.63 and 0.70 (g/MJ ME). Half the animals were barrows, half were gilts. The experiment was carried out throughout the body weight range between 28 and 58 kg. The parameters of animal performance assessed were body weight gain, feed intake, feed to gain ratio and energy to gain ratio. The feed intake of the animals was not influenced by the dietary treatment. The other parameters were markedly influenced by the ratio between apparent ileal digestible lysine and ME, but were independent of the energy density of the diet. The optimum ratio between apparent ileal digestible lysine and ME was nearly independent of the dietary energy level. According to exponential regression analysis, the optimum ratio was 0.66 g ileal digestible lysine/MJ ME for growth, regardless of the dietary energy density and at least 0.71 or at least 0.69 for optimum feed to gain ratio (at 13.0 and 14.0 MJ ME/kg, respectively). The ratio for optimum energy to gain was above the highest ratio used (0.71 g/MJ ME). Barrows exhibited higher feed intake (+11%) and body weight gain (+9%) than gilts. The optimum ratio between ileal digestible lysine and ME, however, was similar for gilts and barrows. In conclusion, the study shows that the optimum ratio between apparent ileal digestible lysine and ME is independent of the dietary energy level. The optimum ratio estimated was slightly above 0.70 g/MJ ME for pigs in a live weight range between 28 and 58 kg.


Accession: 003414966

DOI: 10.1046/j.1439-0396.2000.00261.x



Related references

Ettle, T.; Roth Maier, D.A.; Roth, F.X., 2003: Effect of apparent ileal digestible lysine to energy ratio on performance of finishing pigs at different dietary metabolizable energy levels. A study with a total of 96 crossbred barrows and gilts fed ad libitum in a body weight range of 56-110 kg was carried out in order to investigate whether the optimum ratio of apparent ileal digestible lysine:energy (ME) depends on the energy densi...

Urynek, W.; Buraczewska, L., 2003: Effect of dietary energy concentration and apparent ileal digestible lysine:metabolizable energy ratio on nitrogen balance and growth performance of young pigs. Two experiments were conducted to determine the optimal apparent ileal digestible lysine:ME (Lys:ME) ratio and the effects of lysine and ME levels on N balance (Exp. 1) and growth performance (Exp. 2) in growing pigs. Diets were designed to contai...

Li, P.; Zeng, Z.; Wang, D.; Xue, L.; Zhang, R.; Piao, X., 2012: Effects of the standardized ileal digestible lysine to metabolizable energy ratio on performance and carcass characteristics of growing-finishing pigs. A total of 2,121 growing-finishing pigs (Duroc × Landrace × Large White) were utilized in six experiments conducted to determine the effects of different ratios of standardized ileal digestible lysine (SID-Lys) to metabolizable energy (ME) on t...

Shelton, N.W.; Tokach, M.D.; Dritz, S.S.; Goodband, R.D.; Nelssen, J.L.; DeRouchey, J.M.; Usry, J.L., 2012: Effects of porcine circovirus type 2 vaccine and increasing standardized ileal digestible lysine:metabolizable energy ratio on growth performance and carcass composition of growing and finishing pigs. Four experiments were conducted to examine the effect of porcine circovirus type 2 (PCV2) vaccination on the response of growing and finishing pigs (PIC 337 × 1050) to increasing dietary Lys. Experiments 1 and 2 evaluated 38- to 65-kg gilts and b...

Raj, S.; Skiba, G.; Weremko, D.; Fandrejewski, H., 2003: The effect of the apparent ileal digestible lysine-to-energy ratio on growth rate and protein deposition in the body of growing pigs fed a wheat-rapeseed diet. The experiment was conducted on 20 pigs (25 to 70 kg body weight (BW)) to determine the optimal apparent ileal digestible lysine:metabolizable energy (Lys:ME) ratio in a wheat-rapeseed diet (Poland). Gilts (synthetic line 990) were allocated to 4...

Xue, L.; Piao, X.; Li, D.; Li, P.; Zhang, R.; Kim, S.Woo.; Dong, B., 2012: The effect of the ratio of standardized ileal digestible lysine to metabolizable energy on growth performance, blood metabolites and hormones of lactating sows. A total of 335 lactating sows (Landrace Large White) were used in two experiments to determine the optimum ratio of standardized ileal digestible lysine (SID-Lys) to metabolizable energy (ME) for mixed parity sows during lactation. In Exp. 1, 185...

Oresanya, T.F.; Beaulieu, A.D.; Beltranena, E.; Patience, J.F., 2007: The effect of dietary energy concentration and total lysine/digestible energy ratio on the growth performance of weaned pigs. Amino acids should be defined in relation to dietary energy concentration in diets for young pigs. However, the literature contains diverse estimates of the optimum ly sine: digestible energy (DE) ratio for weanling pigs performing at levels comm...

Lunen, T.A. van; Cole, D.J.A., 1998: The effect of dietary energy concentration and lysine/digestible energy ratio on growth performance and nitrogen deposition of young hybrid pigs. An experiment was conducted to examine the effects of dietary lysine/digestible energy (DE) ratio (g/MJ) and dietary energy concentration on growth performance and body composition of young hybrid gilts from 9.1 to 25.4 kg live weight. Seven pigs...

Van Lunen, T.A.; Cole, D.J.A., 1998: The effect of dietary energy concentration and lysine/digestible energy ratio growth performance and nitrogen deposition of young hybrid pigs. An experiment was conducted to examine the effects of dietary lysine/digestible energy (DE) ratio (g/MJ) and dietary energy concentration on growth performance and body composition of young hybrid gilts from 9.1 to 25.4 kg live weight. Seven pigs...

Song, G.L.; Li, D.F.; Piao, X.S.; Chi, F.; Yang, W.J., 2003: Apparent ileal digestibility of amino acids and the digestible and metabolizable energy content of high-oil corn varieties and its effects on growth performance of pigs. Two experiments were conducted to compare the nutritional value of normal and high-oil corn for pigs. The normal corn and the two varieties (high-oil corns A and B) of high-oil corn contained 4.41, 7.35 and 8.86% ether extract, on DM basis, respec...