Effect of Dietary Electrolyte Balance on Growth and Acid-Base Status in Swine

Abstract

The effect of dietary electrolyte balance on pigs fed lysine- or tryptophan-adequate or tryptophan-deficient diets was investigated in four experiments using 8- to 12-wk-old pigs. Electrolyte balance, expressed as Na+K-Cl in meq/kg of diet, was varied by altering dietary levels of Na and Cl while holding all other minerals constant. In two experiments in which the basal diet contained a balance of 135 meq/kg, simple lysine or tryptophan deficiences caused depressed growth, feed intake and efficiency of feed utilization, but none of these responses was altered by dietary supplementation with NaHCO3. In one experiment in which the electrolyte balance of the basal diet was 61 meq/kg and in which both lysine and tryptophan were limiting. NaHCO3 supplementation significantly increased growth and feed intake. This did not occur if the diet was also supplemented with tryptophan. A final experiment was conducted to determine the response of pigs to a range of electrolyte balance (-85 to 341 meq/kg) in a practical corn-soy diet containing adequate levels of all amino acids. Growth and feed intake appeared to be maximal for balances of 0 to 341 meq/kg Na+K-Cl, but were decreased at -85 meq/kg (P less than .05). Acid-base balance was adversely affected at 0 meq/kg. The results suggest that the response of lysine-deficient pigs to sodium bicarbonate is dependent upon the electrolyte balance of the diet, and also is influenced by other dietary amino acids.

Lysine requirement of starting barrows from two genetic groups fed on low crude protein diets

“…This observation revealed the negative effect of high levels of crystalline lysine-HCl over the consumption by the pigs. Decrease of DFI caused by increasing lysine levels could be explained by decreasing in Na+K-Cl value, owing to L-lysine HCl inclusion, although the decrease in the Na+K-Cl value in this trial was from 116 to 75 meq/kg (from 0.80 to 1.40% of total lysine diet) and this range was not higher than the range (341 to 0 meq/kg) proposed by Patience et al (1987) as necessary to reduce the feed intake. The DLGG showed linear improve (P<.05) for feed conversion with the increase of lysine levels.…”

Effect of dietary sodium on digestibility of nutrients and performance in growing rabbits.

“…The relation between minerals and amino acid requirements has been widely studied in poultry (Austic and Calvert, 1981;Austic and Patience, 1988) and swine (Madubuike, 1980). The inclusion of sodium bicarbonate improved the growth of swine fed lysinedeficient diets (Patience et al, 1987). In rabbits, there is not available information concerning the relationship between minerals and amino acids, but our study indicates that dietary sodium content might affect the intestinal absorption of AA.…”

“…However, the experimental evidence (Surdeau et al, 1976;Harris et al, 1984) to establish the recommendation of this mineral is weak and based on growth responses, and no information is available concerning its effect on the digestibility of nutrients in rabbits. Sodium requirements might change when some amino acids become limiting as occurs in pigs (Austic and Calvert, 1981;Patience et al, 1987), and particularly when low protein diets are used.…”

Effect of Genex, a feed additive containing organic acids and herb extracts, on the performance of broiler chickens

“…These findings suggest that the buffering capacity of poultry diets can be readily manipulated by varying the type ΠΕΡΙΟΔΙΚΟ ΤΗΣ ΕΛΛΗΝΙΚΗΣ ΚΤΗΝΙΑΤΡΙΚΗΣ ΕΤΑΙΡΕΙΑΣ 2002,53(3) JOURNAL OF THE HELLENIC VETERINARY MEDICAL SOCIETY 2002,53(3) http://epublishing.ekt.gr | e-Publisher: EKT | Downloaded at 12/05/2018 10:04:21 | θυμητή ρυθμιστική ικανότητα της τροφής μεταβάλλοντας το είδος και την ποσότητα των πηγών των ανόργανων ου σιών που συμμετέχουν στη σύνθεση της (Partanen et al, 2002). Μια τέτοια προσέγγιση ίσως αξίζει περαιτέρω διε ρεύνηση, καθώς θα μπορούσε να αποτελέσει μια χαμηλού κόστους εναλλακτική λΰση για τη μείωση της ρυθμιστικής ικανότητας των τροφών (Patience et al, 1987;Evans and Kornegay, 1991;Kornegay and Evans, 1991;Straw et al, 1991;Florou-Paneri et al, 2001). …”