Dietary calcium requirements of Sheldrake ducklings from 1 to 21 days of age

2019 ◽  
Vol 59 (5) ◽  
pp. 887 ◽  
Author(s):  
Y. W. Zhu ◽  
X. X. Jiang ◽  
J. Wen ◽  
W. C. Wang ◽  
L. Yang
Keyword(s):  
Average Daily Gain ◽  
Basal Diet ◽  
Dietary Calcium ◽  
Regression Analyses ◽  
Mineral Density ◽  
Phytate Phosphorus ◽  
Maximal Weight ◽  
Bone Mineralisation ◽  
Tibia Ash ◽  
Daily Gain

An experiment was conducted to investigate the effect of dietary calcium (Ca) level on growth performance and bone characteristics to evaluate the Ca requirements for Sheldrake ducklings from 1 to 21 days of age. A total of 1080 day-old male Campbell Sheldrake ducklings were randomly allotted to one of six treatments with six replicate cages of 30 birds per cage with a completely randomised design. A basal diet with 0.40% non-phytate phosphorus was supplemented with Ca source (calcium carbonate) to achieve graded concentrations of Ca (0.45–1.20%) in diets with an increment of 0.15%. The bodyweight, average daily gain and average daily feed intake displayed quadratic responses to increasing concentrations of dietary Ca with maximal responses for ducklings fed the diets with 0.60 and 0.75% Ca. Serum Ca concentration, tibia ash percentage, Ca content in tibia ash and bone mineral density were increased linearly (P < 0.02) as dietary Ca concentrations increased. According to the non-linear regression analyses, the Ca requirements for maximal weight gain and bone mineralisation of Sheldrake ducklings from 1 to 21 days of age were estimated at 0.60% and 0.64–0.87% respectively.

scholarly journals Dietary calcium requirements of broilers fed a conventional corn-soybean meal diet from 1 to 21 d of age

2021 ◽  
Author(s):  
Shingping Bai ◽  
Yunfeng Yang ◽  
Xuelian Ma ◽  
Xiudong Liao ◽  
Runlian Wang ◽  
...  
Keyword(s):  
Growth Performance ◽  
Soybean Meal ◽  
Bone Development ◽  
Average Daily Gain ◽  
Mineral Density ◽  
Gene Expressions ◽  
Phytate Phosphorus ◽  
Bone Ash ◽  
Tibia Ash ◽  
Quadratic Models

Abstract Background The current calcium (Ca) recommendation for broilers is primarily based on studies conducted more than 30 years ago with birds of markedly different productive potentials from those which exist today. And the response indicators in these studies are mainly growth performance and bone ash percentage. Therefore, the present study was carried out to investigate the effect of dietary Ca level on growth performance, serum parameters, bone characteristics and Ca metabolism-related gene expressions, so as to estimate dietary Ca requirements of broilers fed a conventional corn-soybean meal diet from 1 to 21 d of age. Methods A total of 420 1-day-old Arbor Acres male broilers were randomly assigned to 1 of 7 treatments with 6 replicates (10 birds per cage) and fed the corn-soybean meal diets containing 0.60, 0.70, 0.80, 0.90, 1.00, 1.10 or 1.20% Ca for 21days. Each diet contained the constant non-phytate phosphorus content of about 0.39%. Results The average daily gain decreased linearly (P < 0.001) as dietary Ca level increased. The serum and tibia alkaline phosphatase (ALP) activities, tibia bone mineral density (BMD), middle toe BMD, tibia ash percentage, tibia breaking strength, and tibia ALP protein expression level were affected (P < 0.05) by dietary Ca level, and showed significant quadratic responses (P < 0.02) to dietary Ca levels. The estimates of dietary Ca requirements were 0.80 to 1.00% based on the best fitted broken-line or quadratic models (P < 0.03) of the above serum and bone parameters, respectively. Conclusions The results from the present study indicate that the Ca requirements would be about 0.60% to obtain the best growth rate, and 1.00% to meet all of the Ca metabolisms and bone development of broilers fed a conventional corn-soybean meal diet from 1 to 21 days of age.

Effect of reduced dietary non-phytate phosphorus concentration, with or without calcium reduction, in diets supplemented with phytase for weaned piglets from 28 to 63 days of age

2019 ◽  
Vol 59 (12) ◽  
pp. 2236 ◽  
Author(s):  
A. N. Sélos ◽  
J. L. Donzele ◽  
R. F. M. O. Donzele ◽  
T. R. Castro ◽  
E. F. Cardoso ◽  
...  
Keyword(s):  
Average Daily Gain ◽  
Positive Control ◽  
Metacarpal Bone ◽  
Weaned Piglets ◽  
Phytate Phosphorus ◽  
Bone Ash ◽  
Significant Difference ◽  
Bone Mineralisation ◽  
The Impact ◽  
Daily Gain

The aim of this study was to investigate the impact of reduced dietary non-phytate phosphorus (nPP) or nPP and calcium (Ca) concentrations in diets supplemented with phytase on performance, bone mineralisation and serum parameters of weaned piglets from 28 to 63 days of age. A total of 168 barrows and gilts, weaned at 28 days of age, with an average initial bodyweight of 8.11 ± 0.61 kg were randomly allocated in a completely randomised block design. Treatments consisted of a positive control and an additional six treatments, in a 3 × 2 factorial arrangement, totalling seven treatments (Trt). The positive control (PC) diet was formulated to meet or exceed the nutrient requirements of pigs weighing 8–30 kg bodyweight, without phytase supplementation, and the six other diets were formulated similar to the PC, except with a reduction in the nPP concentration of 0.065, 0.130 or 0.195% (Phase Feeding 1 (PF1), PF2 or PF3 respectively) or similar to PF1, PF2 and PF3 minus 0.16% Ca, supplemented with 2000 FTU/kg of phytase, with eight replicate pens/Trt of three piglets each, in a three-phase feeding program. From Day 28 to Day 35, the average daily gain was higher (P &lt; 0.05) and the feed conversion rate was lower (P &lt; 0.05) respectively for piglets fed the PC when compared with those fed PF3 and PC treatment minus 0.160% calcium and minus 0.195% nPP (PF6). In contrast, when evaluating the period from Day 28 to 49, piglets fed PC presented the highest average daily gain, but only differed (P &lt; 0.05) to those fed PF3 and PF6. When considering the overall period, at 63 days of age, no significant difference was detected (P &gt; 0.05) between the PF Trts tested and the PC regarding performance. As for bone mineralisation at 63 days, bone P (BP) decreased as nPP in the diet decreased, regardless of the Ca level. However, except for PF3 and PF6, BP and third metacarpal bone ash concentration were respectively higher for pigs fed the PF Trts, when compared with PC. All treatments containing phytase resulted in a lower bone Ca:BP ratio when compared with PC. Serum P concentrations decreased as nPP in the diet decreased, regardless of the level of dietary Ca. However, with the exception of PF3 and PF6, serum P was not significantly different than pigs fed the PC. In conclusion, reducing nPP or nPP and Ca in diets containing 2000 FTU Ronozyme® HiPhos/kg phytase had no adverse effects on growth performance and increased BP and third metacarpal bone ash concentration compared with pigs fed a nutritionally adequate control diet.

scholarly journals Live Yeast or Live Yeast Combined with Zinc Oxide Enhanced Growth Performance, Antioxidative Capacity, Immunoglobulins and Gut Health in Nursery Pigs

Animals ◽  
2021 ◽  
Vol 11 (6) ◽  
pp. 1626
Author(s):  
Shenfei Long ◽  
Tengfei He ◽  
Sung Woo Kim ◽  
Qinghui Shang ◽  
Tadele Kiros ◽  
...  
Keyword(s):  
Average Daily Gain ◽  
Basal Diet ◽  
Conversion Ratio ◽  
Gut Health ◽  
Total Volatile ◽  
Feed Conversion ◽  
Nursery Pigs ◽  
Serum Iga ◽  
Daily Gain ◽  
Live Yeast

This study aimed to investigate the effects of dietary LY or LY combined with ZnO supplementation on performance and gut health in nursery pigs. 192 Duroc × Landrace × Yorkshire piglets (weaned on d 32 of the age with 9.2 ± 1.7 kg BW) were allocated into four treatments with eight replicate pens, six piglets per pen. The treatments included a basal diet as control (CTR), an antibiotic plus ZnO diet (CTC-ZnO, basal diet + 75 mg/kg of chlortetracycline + ZnO (2000 mg/kg from d 1 to 14, 160 mg/kg from d 15 to 28)), a LY diet (LY, basal diet + 2 g/kg LY), and a LY plus ZnO diet (LY-ZnO, basal diet + 1 g/kg LY + ZnO). The results showed that pigs fed LY or LY-ZnO had increased (p < 0.05) average daily gain, serum IgA, IgG, superoxide dismutase, fecal butyric acid, and total volatile fatty acid concentrations, as well as decreased (p < 0.05) feed conversion ratio and diarrhea rate compared with CTR. In conclusion, pigs fed diets with LY or LY combined with ZnO had similar improvement to the use of antibiotics and ZnO in performance, antioxidant status, immunoglobulins, and gut health in nursery pigs.

Effect of supplementary Aspergillus niger phytase in diets for piglets on their performance and apparent digestibility of phosphorus

1992 ◽  
Vol 55 (3) ◽  
pp. 425-430 ◽  
Author(s):  
S. Beers ◽  
A. W. Jongbloed
Keyword(s):  
Aspergillus Niger ◽  
Average Daily Gain ◽  
Live Weight ◽  
Basal Diet ◽  
Apparent Digestibility ◽  
Feeding Trial ◽  
Daily Food ◽  
Microbial Phytase ◽  
Daily Gain ◽  
Aspergillus Niger Phytase

AbstractA total of 384 piglets from a three-way cross Yorkshire ♂ × (Finnish Landrace ♂ × Dutch Landrace♀) ♀ in the live-weight range of 11 to 25 kg were used in a feeding trial. The effect of supplementary microbial phytase from Aspergillus niger var. Van Tieghem on performance (average daily gain (ADG), average daily food intake (ADFI) and food conversion ratio (FCR)) and apparent digestibility of total phosphorus (P), in comparison with a non-supplemented basal diet or a diet supplemented with one or two levels of monocalcium phosphate (MCP), were studied.The piglets were allotted to 12 blocks. Within each block, four experimental diets were offered ad libitum for a period of 4 weeks i.e. (1) basal diet; (2) basal diet + 1·0 g P, from MCP per kg diet; (3) basal diet + 1·9 g P, from MCP per kg diet; and (4) basal diet + 1450 phytase units (PTU) per kg diet. The diets, with added chromium III oxide as a marker, were cold pelleted without steam at a temperature not above 60°C to avoid a possible inactivation of the phytase. In all diets the ratio calcium: digestible P was intended to be constant.Adding 1450 PTU of Aspergillus niger phytase enhanced the apparent digestibility of P by proportionately 0·216 when compared with diet 1 and by proportionately 0·100 compared with diet 3. In addition, significantly higher ADG and ADFI and better FCR were noted in pigs receiving supplementary microbial phytase than in pigs on any other treatment. The content of digestible P of the diet with added phytase, however, zvas between the two levels of the diets with added MCP.

scholarly journals Effects of xylo-oligosaccharide and flavomycin on the immune function of broiler chickens

PeerJ ◽  
2018 ◽  
Vol 6 ◽  
pp. e4435 ◽  
Author(s):  
Lin Yuan ◽  
Wanli Li ◽  
Qianqian Huo ◽  
Chenhong Du ◽  
Zhixiang Wang ◽  
...  
Keyword(s):  
Immune Function ◽  
Growth Performance ◽  
Mrna Expression ◽  
Broiler Chickens ◽  
Average Daily Gain ◽  
Interleukin 2 ◽  
Test Group ◽  
Basal Diet ◽  
Toll Like Receptor 5 ◽  
Daily Gain

This study investigated the effects of xylo-oligosaccharide (XOS) and flavomycin (FLA) on the performance and immune function of broiler chickens. A total of 150 ArborAcres broilers were randomly divided into three groups and fed for six weeks from one day of age in cascade cages. The diets of each test group were (1) a basal diet, (2) the basal diet supplemented with 2 mg/kg FLA, and (3) the basal diet supplemented with 2 mg/kg XOS. At 21 and 42 days, the growth performance index values and short-chain fatty acid (SCFA) concentrations in the cecum were quantified. Furthermore, immunoglobulin G (IgG) and plasma interleukin 2 (IL-2) as well as mRNA expression of LPS-Induced TNF-alpha Factor (LITAF), Toll-like receptor-5 (TLR5) and interferon gamma (IFNγ) in the jejunum were quantified. The results showed that administration of XOS or FLA to chickens significantly improved the average daily gain. Supplementation with XOS increased acetate and butyrate in the cecum, while FLA supplementation increased propionate in the cecum. An increase in plasma IgG was observed in XOS-fed 21-day-old broilers, but FLA supplementation decreased IgG in the plasma of 42-day-old broilers and increased plasma IL-2. Furthermore, FLA or XOS supplementation downregulated mRNA expression of IFNγ, LITAF and TLR5. The above data suggest that addition of XOS and FLA to the diet could improve the growth performance of broilers and reduce the expression of cytokine genes by stimulating SCFA.

Standardized ileal digestible tryptophan and lysine for 15–30 kg gilts

2020 ◽  
pp. 1-8
Author(s):  
T. J. Pasquetti ◽  
L. A. C. Esteves ◽  
V. R. C. de Paula ◽  
L. P. Bonagúrio ◽  
W. Tanamati ◽  
...  
Keyword(s):  
Response Surface ◽  
Average Daily Gain ◽  
Basal Diet ◽  
Surface Model ◽  
Plasma Urea ◽  
Linear Effect ◽  
Treatment Performance ◽  
Low Levels ◽  
Daily Gain ◽  
Blood Variables

Abstract It was aimed to simultaneously study standardized ileal digestible (SID) tryptophan (Trp) and lysine (Lys) for gilts. A digestibility assay was previously conducted to determine the SID amino acid in the basal diet (low levels of SID Trp and Lys). Sixty-four gilts (15.04 ± 1.44 kg) were allotted to 16 diets in a 4 × 4 factorial arrangement (1.55, 1.85, 2.15 and 2.45 g/kg SID Trp and 9.72, 11.12, 12.52 and 13.92 g/kg SID Lys) with four replicates per treatment. Performance, longissimus muscle (LM), backfat thickness (BF) and blood variables were evaluated. An interaction was observed for G:F, and by response surface model, the optimum Trp level was achieved at 2.15 g/kg (0.159 g/MJ of ME). A quadratic effect of Trp was observed on body weight (BW) and average daily gain (ADG); the daily feed intake increased linearly as Trp increased. The optimum Trp levels of 2.25 and 2.24 g/kg were estimated for BW and ADG, respectively. The BF increased with increasing levels of Trp. There was a quadratic and linear effect of Trp and Lys, respectively, on the LM, in which the optimum Trp level was determined as 2.05 g/kg in the diet. Plasma urea nitrogen decreased as Trp and Lys levels increased. Using estimates provided by response surface, maximized G:F ratio was obtained at 2.15 g SID Trp/kg of diet and at least 13.92 g SID Lys/kg of diet is necessary to optimize the G:F for 15–30 kg gilts, providing a Trp:Lys ratio of 15.4:100.

Evaluating the influence of dietary phytogenic blends on gestating and lactating sows and suckling piglets

2018 ◽  
Vol 58 (11) ◽  
pp. 2071
Author(s):  
Mohsen Mohammadi Gheisar ◽  
Jin Young Cheong ◽  
Pinyao Zhao ◽  
In Ho Kim
Keyword(s):  
Survival Rate ◽  
Average Daily Gain ◽  
Basal Diet ◽  
Lonicera Japonica ◽  
Bodyweight Loss ◽  
Lactating Sows ◽  
Suckling Piglets ◽  
Faecal Score ◽  
Daily Gain ◽  
Piglet Survival

This experiment was conducted to determine the effect of dietary inclusion of phytogenic blends on the performance of sows during the gestating and lactating periods and suckling piglets. Fifty-one multiparous sows (Landrace × Yorkshire) were randomly distributed into three treatments (17 sows per treatment): T1 (basal diet); T2 (T1 + 0.05% AC blend (Astragalus membranaceus and Chinese Liquorice); T3 (T1 + 0.05% SL blend (Scutellaria baicalensis and Lonicera japonica). Feeding the sows with diets supplemented with AC and SL blends decreased (P < 0.05) bodyweight loss after farrowing to weanling. The number of piglets, average daily feed intake, backfat thickness, and oestrus interval was not influenced (P > 0.05) by diets. Suckling piglets of sows fed with AC and SL blends showed higher (P < 0.05) weanling bodyweight and average daily gain weight. Piglet survival rate and birthweight were not affected by treatments. Feeding sows with AC and/or SL blends did not significantly influence the composition of colostrum or milk. There was not any significant impact on faecal score of suckling piglets. These results indicated that supplementation of phytogenic blends to the diet of sows during gestating and lactating period led to a decline in bodyweight loss after farrowing and could improve litter performance.

scholarly journals 139 Bioavailability of valine in a fermentation biomass product relative to the bioavailability in crystalline L-valine when fed to weanling pigs

2019 ◽  
Vol 97 (Supplement_2) ◽  
pp. 78-79
Author(s):  
Maryane S Faria de Oliveira ◽  
John K Htoo ◽  
Caroline J González-Vega ◽  
John E Thomson ◽  
Hans H Stein
Keyword(s):  
Linear Regression ◽  
Block Design ◽  
Average Daily Gain ◽  
Basal Diet ◽  
Relative Bioavailability ◽  
Feed Ratio ◽  
Weanling Pigs ◽  
Final Body Weight ◽  
Quadratic Effects ◽  
Daily Gain

Abstract An experiment was conducted to test the hypothesis that Val from a Val-containing fermentation biomass product (Val-FB; 64.4% L-Val) has a bioavailability of 100% relative to L-Val (98% Val) when fed to weanling pigs. A Val-deficient basal diet containing 0.63% standardized ileal digestible (SID) Val was formulated. Six additional diets were prepared by supplementing the basal diet with 0.08, 0.16, or 0.24% L-Val or 0.12, 0.25, or 0.37% Val-FB to create experimental diets containing 0.71, 0.79, or 0.87% SID Val. A total of 224 weanling pigs (6.87 ± 0.64 kg) were allotted to a randomized complete block design with 7 diets and 8 replicate pens per diet. Diets were fed for 21 d and growth performance was measured on a pen basis. Orthogonal-polynomial contrasts were used to determine linear and quadratic effects of L-Val and Val-FB levels on performance and the effect of Val sources. A linear regression model based on performance was used to estimate the relative bioavailability (RBV) of Val in Val-FB relative to L-Val. The final body-weight (BW) and average-daily-gain (ADG) were greater (P < 0.01) for pigs fed diets supplemented with Val-FB than pigs fed diets supplemented with L-Val (Table 1). The average-daily-feed-intake (ADFI) decreased linearly (P < 0.01), whereas gain-to-feed ratio (G:F) increased (P < 0.01) by supplementing graded levels of both Val sources to the diets. The RBV of Val in Val-FB as determined by ADG, G:F, and final BW was 146, 135, and 143%, respectively, with 95% confidence intervals of 99 to 191%, 83 to 187%, and 70 to 217%, respectively. In conclusion, the linear regression estimated a RBV of at least 100% for Val-FB relative to L-Val, and pigs fed diets supplemented with Val-FB had greater ADG and final BW than pigs fed diets supplemented with the same amount of L-Val.

scholarly journals Garlic skin induced shifts in the rumen microbiome and metabolome of fattening sheep

2020 ◽  
Author(s):  
Wen Zhu ◽  
Zhen Su ◽  
Wei Xu ◽  
Hanxue Sun ◽  
Jinfeng Gao ◽  
...  
Keyword(s):  
Growth Performance ◽  
Average Daily Gain ◽  
Basal Diet ◽  
Diversity Indices ◽  
Rumen Fermentation ◽  
Control Group ◽  
Rumen Microbiome ◽  
Volatile Fatty Acid Concentration ◽  
Α Diversity ◽  
Daily Gain

Abstract Background Garlic and its constituents exhibit activities on modifying rumen fermentation and improving growth performance. As a by-product of garlic processing, garlic skin contains similar bioactive components as garlic bulb. However, studies in ruminants using garlic skin are scarce. This study was conducted to investigate the effects of garlic skin supplementation on rumen fermentation characterizes, growth performance, ruminal microbes and metabolites in ruminants. Twelve Hu lambs were randomly assigned into one of two treatments: basal diet (CON) or basal diet supplemented with 80 g/kg DM of gallic skin (GAS). The experiment lasted for10 weeks, with the first 2 weeks for adaptation. Results The results revealed that the average daily gain and volatile fatty acid concentration were higher (P < 0.05) in lambs fed GAS than that in the control group. Garlic skin supplementation did not significantly (P > 0.10) affect the α-diversity indices. Increased (P < 0.05) abundances of Prevotella, Bulleidia, Howardella, Methanosphaera but a decreased (P < 0.05) abundance of Fretibacterium were observed in GAS-fed lambs. In addition, the garlic skin supplementation favorably regulated (P < 0.05) pyrimidine metabolism, purine metabolism, vitamin B6 and B1 metabolism. Moreover, high correlations were observed between fluctuant rumen microbiota and metabolites. Conclusions Supplementation of garlic skin improved the growth performance of sheep by modifying rumen fermentation through inducing shifts in the rumen microbiome and metabolome.

scholarly journals NUTRITIONAL EVALUATION OF TILAPIA FILLETING WASTE MEAL FOR SWINE IN THE NURSERY PHASE

2016 ◽  
Vol 29 (2) ◽  
pp. 473-480 ◽  
Author(s):  
EDSON RICHART ◽  
RICARDO VIANNA NUNES ◽  
LEANDRO DALCIN CASTILHA ◽  
YOLANDA LOPES DA SILVA ◽  
PAULO SEGATTO CELLA
Keyword(s):  
Initial Phase ◽  
Average Daily Gain ◽  
Basal Diet ◽  
Nutritional Composition ◽  
Metabolizable Energy ◽  
Feed Conversion ◽  
Nutritional Evaluation ◽  
Ileal Digestibility ◽  
The Third ◽  
Daily Gain

ABSTRACT: Three experiments were conducted to determine the nutritional composition of tilapia filleting waste meal (TFWM) for pigs in the initial phase. In the first experiment, the chemical composition and the values of digestible and metabolizable energy of TFWM were determined using 10 pigs (15.10 ± 0.74 kg), distributed in cages for metabolic research (2 treatments X 5 replicates). The TFWM replaced 20% of the reference diet based on corn and soybean meal. In the second experiment, the ileal digestibility coefficients of amino acids present in TFWM were determined, using chromic oxide as a marker, through the method of sacrifice, using 10 pigs (15.00 ± 0.27 kg), distributed in cages for metabolic research (2 treatments X 5 replicates). Treatments consisted of a basal diet and one without protein. In the third experiment, the performance of pigs fed diets containing different concentrations of TFWM (0, 5, 10, 15 and 20%) was evaluated. Forty pigs (15.00 ± 0.87 kg), distributed in pairs in nursery pens (5 treatments X 4 replicates) were used. The values of digestible and metabolizable energy corresponded to 3,632 and 3,260 kcal/kg, respectively. Inclusion of up to 10% TFWM in the diet of barrows from 15 to 30 kg did not affect the average daily gain and feed conversion of the animals.

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