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Zeoliti e alimentazione animale: effetto della somministrazione di Clinoptilolite sulla salute, digeribilità e produzioni fecali nel cane - Zeolites and animal nutrition: effect of Clinoptilolite somministration on dog's health, digestibility and faeces quality
No full textIntroduction and aim of the work: Zeolites
are minerals with peculiar chemical and physical
properties. The aim of this work was to evaluate
the effect of Clinoptilolite on canine health, digestibility
and faeces quality.
Materials and method: this study was divided in
two steps using two homogeneous dog’s groups,
firstly introducing Clinoptilolite at 2,5 and 5% in
commercial food, then feeding clinptilolite to dogs
as snack once a day.
Results and discussion: Clinoptilolite both as
additive at 5% in commercial food and fed as snack
once a day shows a significant improvement of faeces
quality without reducing food digestibility or
affect dog’s health
The effect of creatine monohydrate supplementation on blood lactate and performance in agility dogs
No full textCreatine (Cr) is widely used as supplement in human athletes. Its effect is to increase the muscle storage of phosphocreatine (PCr) and enhance the restoration of adenosine triphosfate (ATP) during short and high-intensity exercise. Anaerobic energy release results in depletion of phosphocreatine and accumulation of lactic acid, which set an upper limit of anaerobic ATP production that can influence the performance. The exclusive use of conventionally dry diets seems to lead to a low availability and intake of Cr especially for sport dogs. Since we have very few information about the effect of Cr supplementation in dogs, the aim of this work is to evaluate blood lactate and performance after 15 days of Cr monohydrate supplementation in dogs performing an agility test. Six adult Border Collies were used for the trial. The dogs were regular competitors, well trained and at the same level in agility official competitions. The animals were fed a dry commercial diet (27% protein, 17% fat as fed) and remained with their owners without any changes in their life and habits. The dogs performed a simulated agility competition consisting in 18 obstacles and 156 m long. The course was performed twice with the same handler and 1 minute rest between the two runs was set (Test 1). Time was measured with wireless photocells at the end of each run. Blood lactate was evaluated with a portable device (Accusport, Boheringer) at rest, after the first run, at the end of second run, and after 1 hour rest. After a period of 15 days of Cr monohydrate supplementation (0.2 g/kg BW), all dogs performed the same test again (Test 2). Results of the Test 2 showed speed improvement during R2 compared to R1 (22.70±0.45 s vs 23.19±0.38 s). Differences between the first (R1) and second (R2) run, before and after the supplementation period were analyzed by Anova. Significant difference (p<0.05) between R1 and R2 runs was found before and after the supplementation periods (+0.07 s vs -0.49 s respectively). Furthermore, the difference between R1 and R2 in lactate production was lower in the Test 2 but not significantly different from Test 1 (0.87±0.33 mmol/L vs 1.82±0.28 mmol/L). The 0.2 g/kg BW Cr monohydrate supplementation for 15 days improved performance in dogs submitted to a high and fast agility exercise, but further and more exhaustive studies should be carry over to better understand the metabolic effects of Cr supplementation in dogs
Test di sforzo in pista dritta: correlazione tra parametri di fitness e prestazioni nel cavallo trottatore
No full textEffect of branched-chain amino acid supplementation on performance after aerobic exercise in horses
No full textMacellazioni comparative: stima della composizione corporea iniziale di agnelli massesi
Full text linkRIASSUNTO Otto agnelli, di razza Massese, sono stati macellati all’età di 50 giorni allo scopo di stimare la composizione corporea iniziale dei soggetti impiegati in quattro prove di macellazione comparativa. L’intero corpo animale è stato sottoposto ad analisi per determinarne la composizione in umidità, proteine, grassi, ceneri ed energia. È stato possibile ricavare equazioni di regressione semplice, per la stima dei singoli componenti del contenuto e della composizione corporea, sulla base della loro correlazione con il peso vivo (PV). Per il contenuto proteico (P), è stata ricavata la seguente equazione: P(g) = 88,54 PV(kg) + 1363,53, d.s.r. = 36,74, R2 = 0,89, e per il contenuto energetico (E): E(MJ) = 5,39 PV(kg) + 25,46, d.s.r. = 2,71, R2 = 0,85. SUMMARY Eight Massese lambs were slaughtered at 50 days old, in order to estimate initial body composition in four comparative slaughter trials. Their empty bodies were analized for energy, protein, fat, ash and water. Individual body content and chemical body composition were correlated with live weight (LW). Linear regression equations were then calculated, in the case of protein content (P): P(g) = 88.54 LW(kg) + 1363.53, r.s.d. = 36.74, R2 = 0.89, and in the case of energy content (E): E(MJ) = 5.39 LW(kg) + 25.46, r.s.d. = 2.71, R2 = 0.85
Macellazioni comparative: stima della composizione corporea iniziale di agnelli appenninici
Full text linkRIASSUNTO Nell’ambito di tre prove di macellazione comparativa, sono stati macellati undici agnelli, di razza Appenninica, all’età di 50 giorni per stimarne la composizione corporea ad inizio prova. L’intero corpo animale è stato sottoposto ad analisi per determinarne la composizione in umidità, proteine, grassi, ceneri ed energia. È stato possibile ricavare equazioni di regressione semplice, per la stima dei singoli componenti del contenuto e della composizione corporea, sulla base della loro correlazione con il peso vivo (PV). Per il contenuto corporeo sono state ricavate le seguenti equazioni: acqua (g) = 508,69 PV(kg) + 952,24, d.s.r. = 286,26, R2 = 0,98; proteina (g) = 146,68 PV(kg) + 346,02, d.s.r. = 177,33, R2 = 0,93; grasso (g) = 222,70 PV (kg) + 2083,96, d.s.r. = 273,72, R2 = 0,93; ceneri (g) = 31,68 PV (kg) + 118,48, d.s.r. = 66,19, R2 = 0,82; energia (MJ) = 10,23 PV(kg) – 52,46, d.s.r. = 9,44, R2 = 0,96. Per la composizione corporea non sono state ottenute equazioni affidabili, salvo che per il grasso e l’energia. SUMMARY During the experimental period of 50-100 days, three comparative slaughter trials were carried out on ninety-two Apennine lambs. Eleven lambs were slaughtered at 50 days old, in order to estimate initial body composition. Their empty bodies were analized for energy, protein, fat, ash and water. On average, chemical body composition resulted: moisture 56.26%, protein 16.64%, fat 10.47%, ash 3.84% and energy 7.26 MJ/kg. Individual body content and chemical body composition were correlated with live weight (LW). Linear regression equations were then calculated. The equations in the case of body content were the following: water (g) = 508.69 LW(kg) + 952.24, d.s.r. = 286.26, R2 = 0.98; protein (g) = 146.68 LW(kg) + 346.02, d.s.r. = 177.33, R2 = 0.93; fat (g) = 222.70 LW (kg) + 2083.96, d.s.r. = 273.72, R2 = 0.93; ash (g) = 31.68 LW (kg) + 118.48, d.s.r. = 66.19, R2 = 0.82; energy (MJ) = 10.23 LW (kg) – 52.46, d.s.r. = 9.44, R2 = 0.96. No confidence linear regression equations were obtained for chemical body composition, with the exception of fat (%) = 0.69 LW (kg) + 2.34, d.s.r. = 1.58, R2 = 0.79 and energy (MJ/kg) = 0.17 LW (kg) – 4.03, d.s.r. = 0.52, R2 = 0.68
Valutazione nutrizionale del favino (vicia faba minor) quale principale fonte proteica in diete per ovini: risultati preliminari
Full text linkRIASSUNTO Il presente lavoro rientra in una linea di ricerca volta a valutare fonti proteiche alternative alla farina di estrazione di soia. A tale scopo è stata condotta una prova sperimentale per valutare l’appetibilità, la digeribilità, bilancio azotato e valore nutritivo di diete a base di favino (Vicia faba minor, var. Vesuvio), nella specie ovina. Sono state formulate tre diete con una base foraggera comune: due diete differivano per la diversa presenza di favino (F20: percentuale di inclusione 20% e F38: 38%) e livello proteico (13,8% e 17%) mentre la terza aveva la f.e. di soia (S) quale fonte proteica di riferimento (PG: 15,8%). Per tale prova sono stati impiegati 6 ovini adulti, maschi, castrati, di razza sarda, utilizzando un disegno sperimentale a quadrato latino 3 x 3 con due replicazioni. La digeribilità apparente, con le relative differenze significative, della sostanza secca è risultata pari a 70,0A % per F20, 74,2B % per F38 e 70,0A % per S, mentre quella delle proteine grezze, nello stesso ordine, 73,3A %, 78,0b % e 76,8Ba %. Il bilancio dell’azoto è risultato positivo: 7,7a g/d per F20, 9,0b g/d per F38 e 9,2b g/d per S. Il valore nutritivo delle tre diete è risultato pari a 0,82A UFL/kg (F20), 0,90B UFL/kg (F38) e 0,84A UFL/kg (S). I risultati indicano che il favino può validamente sostituire la farina di estrazione di soia nell’alimentazione degli ovini. SUMMARY The aim of the present work was to evaluate palatability, apparent digestibility, nitrogen balance and nutritive value of diets based on different level of Vicia faba minor comparing to soybean meal. Six Sarda breed wether were used in a two replicated 3 x 3 Latin Square design. Animals were fed in three periods with three experimental diets. Diets were formulated on the basis of natural meadow hay. Two diets contained different levels of Vicia faba: 20% (F20) and 38% (F38) as fed, with a crude protein content of 13,8% and 17% (on dry matter basis) respectively. The third, used as reference diet, was based on soybean meal (S) with a crude protein content of 15,8%. Apparent digestibility values and statistical differences for DM were: 70,0A % (F20), 74,2B % (F38) and 70,0A % (S), for crude protein: 73,3A % (F20), 78,0Bb % (F38) and 76,8Ba % (S). A positive nitrogen balance was observed with the following values: 7,7a g/d (F20), 9,0b g/d (F38) and 9,2b g/d (S). Nutritive value of diets was: 0,82A milkFU/kg (F20), 0,90B milkFU/kg (F38) and 0,84A milkFU/kg (S). Results showed that Vicia faba minor can be used to replace soybean meal in sheep
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