Table 2.
Component (g/MJ, except where specified) | Adequate Se diet | Low Se diet |
---|---|---|
Dry matter (g/100 g as is) | 92.8 | 92.7 |
Crude protein | 14.9 | 14.9 |
Crude fat | 5.8 | 5.8 |
Crude fibre | 1.6 | 1.5 |
Nitrogen free extractb | 35.5 | 35.4 |
Starch | 13.6 | 13.1 |
Crude ash | 2.5 | 2.4 |
Metabolisable energy (MJ/kg DM)c | 16.6 | 16.7 |
Amino acids | ||
Arginine | 0.38 | 0.40 |
Histidine | 0.21 | 0.21 |
Isoleucine | 0.38 | 0.37 |
Leucine | 0.68 | 0.68 |
Lysine | 0.36 | 0.38 |
Methionine | 0.32 | 0.36 |
Cysteine | 0.36 | 0.36 |
Phenylalanine | 0.45 | 0.47 |
Tyrosine | 0.23 | 0.23 |
Threonine | 0.47 | 0.47 |
Tryptophan | 0.14 | 0.14 |
Valine | 0.51 | 0.52 |
Fatty acids | ||
Linoleic acid | 1.35 | 0.96 |
α-Linolenic acid (mg/MJ ME) | 91 | 113 |
Arachidonic acid (mg/MJ ME) | 22.6 | 9.3 |
EPA & DHA (mg/MJ ME) | 6.9 | 6.5 |
Minerals (mg/MJ ME) | ||
Potassium | 416 | 414 |
Calcium | 383 | 388 |
Phosphorus | 299 | 304 |
Chloride | 123 | 110 |
Sodium | 97 | 91 |
Magnesium | 58.4 | 58.2 |
Zinc | 6.5 | 6.5 |
Iron | 3.4 | 3.9 |
Copper | 0.48 | 0.68 |
Manganese | 0.73 | 0.57 |
Iodine | 0.08 | 0.08 |
Selenium (μg/MJ ME) | 46.1 | 6.5 |
Vitamins (mg/MJ ME) | ||
Choline | 148 | 146 |
Biotin | 46.1 | 39.3 |
Niacin | 5.5 | 4.9 |
Pantothenic acid | 1.8 | 2.0 |
d-α-tocopherol | 1.8 | 1.8 |
Riboflavin | 0.45 | 0.44 |
Thiamin | 0.24 | 0.27 |
Pyridoxine | 0.14 | 0.22 |
Retinol | 0.16 | 0.16 |
Menadion (μg/MJ ME) | 71.4 | 90.6 |
Folic acid (μg/MJ ME) | 53.2 | 45.2 |
Cyanocobalamin (μg/MJ ME) | 35.6 | 37.5 |
Cholecalciferol (μg/MJ ME) | 1.13 | 0.94 |
MJ megajoule, ME metabolisable energy, EPA Eicosapentaenoic acid, DHA docosahexaenoic acid
aAll analyses were performed by Eurofins Food Testing, Wolverhampton, UK
bCalculated by substracting the amount (as g/100 g as is) of crude fat, protein, ash and fibre from the percentage dry matter and dividing this by the metabolisable energy concentration (MJ/kg as is)
cCalculated using predictive equations for ME (NRC, 2006)
Both dog groups received the adequate Se diet in the 8-week pre-feeding period. Dog group A continued to receive the adequate Se diet in the 8-week experimental period and dog group B switched to the low Se diet