Growth performance, nutrient digestibility, antioxidant enzyme activity, and fecal microbial flora in growing pigs fed diets containing Spirulina

2019 ◽  
Vol 99 (4) ◽  
pp. 840-847
Author(s):  
X. Liu ◽  
Y.S. Han ◽  
I.H. Kim

The present experiment was to evaluate the effects of dietary Spirulina (SP) supplementation in growing pigs. A total of 140 pigs [(Landrace × Yorkshire) × Duroc, 25.32 ± 1.36 kg] were randomly distributed to one of four treatments: control, basal diet; treatment 1, basal diet + 0.025% SP; treatment 2, basal diet + 0.050% SP; and treatment 3, basal diet + 0.100% SP. Growing pigs fed 0.050% SP diet had greater (P < 0.05) body weight and fecal Lactobacillus counts compared with pigs fed basal diet. Average daily gain and gain to feed ratio were greater (P < 0.05) in pigs fed 0.050% and 0.100% SP diets as compared with pigs fed basal diet. The apparent total tract digestibility (ATTD) of dry matter (DM) and superoxide dismutase (SOD) activity for pigs fed 0.050% SP diet tended to increase compared with pigs fed basal diet (P < 0.10). Pigs fed 0.025%, 0.050%, and 0.100% SP had a higher (P < 0.05) glutathione peroxidase (GPx) activity than pigs fed basal diet. In conclusion, SP supplementation improved growth performance and ATTD of DM, increased the SOD and GPx activity, and enhanced the fecal Lactobacillus counts in growing pigs.

2020 ◽  
Vol 98 (Supplement_3) ◽  
pp. 199-200
Author(s):  
Woo Jung Seok ◽  
Lei Cheng ◽  
Thanapal Palanisamy ◽  
Xiangting Fu ◽  
In Ho Kim

Abstract This study aimed to evaluate the effects of supplemental Bacillus licheniformis derived-protease in diets on growth performance, apparent total tract digestibility (ATTD), and fecal microbial shedding in post-weaned growing pigs. In total, 90 crossbred (Landrace × Yorkshire × Duroc) weaner pigs with an initial average BW of 6.61 ± 1.73 kg were randomly allotted into 2 treatments with 9 replicate pens of 5 pigs for a 4-phase feeding trial (0 to 1, 1 to 3, 3 to 6, and 6 to 11 weeks). The treatments were: CON, corn-soybean meal based basal diet; PROT, basal diet + 0.05% protease. The basal diet contained 16.32, 15.91, 15.49, and 14.91 MJ/kg digestibility energy respectively and 1.50, 1.40, 1.30, and 1.00% lysine respectively for phase 1, 2, 3, and 4. All data were statistically analyzed by Student’s t-test of SAS 9.4 (SAS Institute Inc., Cary, NC, USA). Variability in the data was expressed as mean ± standard deviation, differences with P &lt; 0.05 were considered to be statistically significant. During phase 3, average daily gain, and gain: feed ratio was increased (P &lt; 0.05) in pigs fed PROT diet compared with those fed CON diet. Pigs fed PROT diet had higher (P &lt; 0.05) ATTD of dry matter and crude protein than pigs fed CON diet. No differences were observed in fecal microflora counts between CON and PROT groups. Dietary supplementation of Bacillus licheniformis derived-protease increased growth performance at phase 3 and increased the digestibility) of dry matter and crude protein (insert mean values for both Con vs Treat) in growing pigs.


2020 ◽  
Vol 4 (3) ◽  
Author(s):  
Eric Hatungimana ◽  
Tess C Stahl ◽  
Peter S Erickson

Abstract The objective of this study was to evaluate the growth performance and apparent total tract nutrient digestibility of Holstein heifers limit-fed diets containing different amounts of wet brewer’s grains (WBG). A 12-wk randomized complete block study was conducted using 30 yearling Holstein heifers [378 ± 27 d of age, and body weight (BW) of 357.8 ± 27.6 kg (mean ± SD)]. Treatments were 0%, 10% and 20% of WBG on a dry matter (DM) basis and diets were formulated to be limit-fed for dry matter intake (DMI) at 2.35% of BW and provided 15% crude protein (CP) and 2.27 Mcal metabolizable energy/kg of DM. Dry matter intake was recorded daily, while BW and skeletal measurements were measured every 2 wk. During week 12, fecal samples were collected directly from the rectum over four consecutive days and composited by heifer to determine apparent total tract nutrient digestibility using acid detergent insoluble ash as a marker. Data were analyzed using the MIXED procedure of SAS. Dry matter intakes, BW, and average daily gain were not different among treatments (P = 0.2, P = 0.4, and P = 0.6, respectively). Dry matter intakes ranged from 8.6 to 9.0 kg/d. Average BW were 404.4, 411.5, and 409.3 kg for heifers fed the 0%, 10%, and 20% WBG diets, respectively. Average daily gains were 1.03, 1.04, and 0.96 kg/d for heifers fed the 0%, 10%, and 20% WBG diets respectively. Skeletal measurements and body condition scores (BCS) were not different among treatments except for the change in heart girth (P &lt; 0.01) and initial BCS (P &lt; 0.01). Apparent total tract digestibilities of DM, organic matter, CP, fat, and hemicellulose were greater or tended to be greater in heifers fed 0% and 20% WBG treatments than heifers fed 10 % WBG (P = 0.04, P = 0.04, P = 0.06, P = 0.06, and P = 0.01, respectively). Neutral detergent fiber, acid detergent fiber, and fat digestibilities were similar among treatments (P = 0.2, P = 0.3, and P = 0.3, respectively). During the digestibility phase, DMI tended to be greater (P = 0.08) for the 10% WBG treatment. These results demonstrate that limit-feeding heifers with diets containing up to 20% WBG could replace soybean- and corn-based concentrates in diets without adverse consequences to the heifer growth performance.


2020 ◽  
Vol 100 (1) ◽  
pp. 133-139
Author(s):  
Xiang Ao ◽  
Yan Lei ◽  
In Ho Kim

This study was conducted to evaluate the effect of supplementation of different flavors (apple and anise) on growth performance, nutrient digestibility, blood profiles, and carcass quality in growing–finishing pigs. A total of 96 growing pigs [(Yorkshire × Landrace) × Duroc] with an average body weight (BW) of 28.2 ± 0.7 kg were randomly assigned to one of the following three treatments: (1) CON, basal diet; (2) APF, basal diet + 0.05% apple flavor; (3) ANF, basal diet + 0.05% anise flavor, according to their BW and sex in this 15 wk experiment. There were eight replications (pens) per treatment and four pigs per pen (two barrows and two gilts). During week 0–5, pigs fed ANF diets had greater (p < 0.05) average daily gain (ADG) and average daily feed intake than those fed CON and APF diets. Dietary ANF treatment increased (p < 0.05) ADG during 0–15 wk compared with CON treatment. At the end of 5 wk, the apparent total tract digestibility of nitrogen in ANF treatment was improved (p < 0.05) compared with that in CON treatment. Dietary treatments did not affect the studied traits of carcass and meat quality. The inclusion of anise flavor increased ADG, but apple flavor had no effect on growth performance in growing–finishing pigs.


Author(s):  
B.D. Sutherland ◽  
J.A. Johnson ◽  
J.J. McKinnon ◽  
T.A. McAllister ◽  
G.B. Penner

The objective of this study was to determine the effects of feeding barley silage (BS) or corn silage (CS) with dry-rolled barley (BG), dry-rolled corn (CG), or a blend of barley and corn grain (BCG), on growth performance and nutrient digestibility, the latter predicted using near-infrared spectroscopy for backgrounding cattle. Steers (n = 288) were stratified by body weight (BW) into 24 pens and pens were randomly assigned to one of six treatments (n = 4) in a 2 × 3 factorial design. Main factors included BS or CS in combination with BG, CG, or BCG. There were no silage × grain interactions. Dry matter intake (DMI; P = 0.018) and final BW (P = 0.004) were greater for steers fed CS than BS, but average daily gain (1.01 kg d−1) and gain-to-feed ratio (0.10 kg kg−1) were not affected by silage or grain source. Steers fed CS also had greater dry matter, organic matter, crude protein (CP), acid detergent fiber (ADF), starch, and gross energy digestibility values (P < 0.01) than BS. Feeding BG increased starch, neutral detergent fiber, ADF, and CP digestibility values (P ≤ 0.01) over CG and BCG. Relative to BS, feeding CS increased DMI, final BW, and nutrient digestibility, whereas dry-rolled BG improved nutrient digestibility when compared with CG and BCG in backgrounding diets.


2020 ◽  
Vol 100 (1) ◽  
pp. 205-209
Author(s):  
Y. Yang ◽  
J.H. Park ◽  
I.H. Kim

A total of 150 weaning pigs (7.53 ± 1.23 kg) were randomly assigned to three treatments consisting of basal diet, and the basal diet supplemented with 300 and 600 mg kg−1 of probiotics, respectively, in a 42 d trial. The incremental levels of probiotics linearly increased average daily gain during week 1 and through the overall experimental period (P < 0.05). The average daily feed intake, body weight, and the apparent total tract digestibility of dry matter, nitrogen, and gross energy also increased (P < 0.05) with the increased level of probiotics. A significant reduction in Escherichia coli counts (P = 0.0037) and increase (P = 0.0016) in Lactobacillus counts were observed on day 42.


2019 ◽  
Vol 97 (Supplement_3) ◽  
pp. 304-304
Author(s):  
Tylo J Kirkpatrick ◽  
Sierra L Pillmore ◽  
Kimberly Cooper ◽  
Travis Tennant ◽  
Ty Lawrence

Abstract This experiment was designed to study the effect of days on feed and an aggressive implant strategy on Jersey steer growth performance. Steers (n = 30; start of trial body weight (BW) 183 ± 43 kg) were randomly assigned to one of two treatments; negative control (CON) or implanted with Revalor 200 every 70 d (REV; d 0, d 70, d 140, d 210, d 280, d 350) for a total of 6 implants. Steers were weighed every 35 d and daily feed delivery was recorded daily. Data for dry matter intake (DMI) and gain to feed ratio (G:F) were analyzed via a mixed model; the fixed effects were day and treatment. Live growth BW and average daily gain (ADG) used day as the repeated measure and animal as the subject in a repeated measures analysis. Change in BW increased linearly (P &lt; 0.01); treatments differed in BW from d 280 through d 350 (P &lt; 0.01). Average daily gain decreased (P &lt; 0.01) linearly and differed (P &lt; 0.01) at d 70, d 140, d 280, and d 350, but not (P ≥ 0.10) at d 210 or d 420. Dry matter intake was greater (P &lt; 0.05) for REV steers (7.6 kg/d) than CON (6.8 kg/d). Gain to feed ratio did not differ (P ≥ 0.78) between CON steers (0.13 kg/kg dry matter (DM)) and REV (0.14 kg/kg DM) steers, yet G:F differed (P &lt; 0.01) amongst periods (d 70 = 0.21 kg/kg, d 140 = 0.16 kg/kg, d 210 = 0.15 kg/kg, d 280 = 0.13 kg/kg, d 350 = 0.08 kg/kg, d 420 = 0.08 kg/kg). Aggressively implanting Jersey steers improved growth performance by 9.6%, 13.2%, 11.3%, and 7.7% for BW, ADG, DMI, and G:F, respectively.


2012 ◽  
Vol 92 (4) ◽  
pp. 505-511 ◽  
Author(s):  
T. A. Woyengo ◽  
O. O. Akinremi ◽  
B. G. Rossnagel ◽  
C. M. Nyachoti

Woyengo, T. A., Akinremi, O. O., Rossnagel, B. G. and Nyachoti, C. M. 2012. Performance and total tract nutrient digestibility of growing pigs fed hulless low phytate barley. Can. J. Anim. Sci. 92: 505–511. An experiment was conducted to determine the performance and nutrient digestibility of growing pigs fed hulless low phytate (HLP) barley without or with phytase for 28 d. Twenty-four growing pigs (average initial body weight=25.3 kg) were fed three diets in a completely randomised design. The diets included a regular-hulled barley-based diet, and a HLP barley-based diet without or with phytase at 500 phytase units kg−1. Pigs fed the HLP barley-based diet without phytase had greater (P<0.05) average daily gain (0.911 vs. 0.717 kg), and apparent total tract digestibility of dry matter, energy, P, Mg, and Na were higher (P<0.05) than the regular barley-based diet. Supplementation of phytase to the HLP barley-based diet resulted in improved (P<0.05) feed conversion efficiency (0.506 vs. 0.547 kg kg−1), and apparent total tract digestibility of N, P and K. In conclusion, pigs fed the HLP barley-based diet had higher growth performance and nutrient digestibility than those fed the regular-hulled barley-based diet, indicating that the HLP barley is a better source of nutrients for pigs than regular barley. Phytase supplementation to the HLP barley-based diet can result in a further increase in nutrient utilisation by pigs.


Animals ◽  
2020 ◽  
Vol 10 (3) ◽  
pp. 386 ◽  
Author(s):  
Balamuralikrishnan Balasubramanian ◽  
Jae Hong Park ◽  
Sureshkumar Shanmugam ◽  
In Ho Kim

The study was aimed to evaluate the effects of dietary inclusion of an enzyme blend on growth performance, apparent total track digestibility (ATTD) of dry matter (DM), nitrogen (N), gross energy (GE), fecal microbial population, noxious gas emissions and meat quality of pigs fed corn–soybean meal-based diets for a 16-week feeding trial. A total of 180 growing pigs (body weight of 23.3 ± 2.51 kg) were used and randomly allotted to one of three dietary treatments (positive control (PC, basal diet); negative control (NC, −150 kcal/kg of PC); A1 (NC + 1% enzyme blend)). Overall, dietary inclusion of the enzyme blend increased (p < 0.05) body weight, average daily gain and gain:feed ratio without effecting average daily feed intake. An increase was observed in ATTD of DM (p = 0.027) and GE (p = 0.026) at week 16 and 6, respectively. Dietary inclusion of the enzyme blend increased the beneficial effects on fecal microbiota counts such as Lactobacillus with a reduced presence of E. coli during the entire experiment (p < 0.05). Further, positive effects (p < 0.05) were observed on back-fat thickness and carcass weight of pigs, along with the results of reduced levels of NH3 emissions (p = 0.032) at week 16. Thus, the study suggested that the dietary enzyme blend supplement had improving effects on growth performance, ATTD of nutrients, fecal microbial counts and meat quality in pigs.


2021 ◽  
Vol 99 (Supplement_1) ◽  
pp. 174-175
Author(s):  
Molly L McGhee ◽  
Hans H Stein

Abstract Two experiments were conducted to test the hypotheses that feed preference and growth performance will not be affected if hybrid rye replaces corn in diets for growing pigs. In experiment 1, 36 pigs (32.0 ± 1.8 kg) were housed for 8 d with one gilt and one barrow in each pen. Each pen had 2 feeders containing a corn-based or a hybrid rye-based diet. Feeder positions were switched daily, and feed allotments and disappearances were recorded daily. In experiment 2, 128 pigs (27.2 ± 2.2 kg) were allotted to 32 pens with 4 pigs/pen and 8 replicate pens per diet. A corn-based basal diet and 3 diets containing 22, 45, or 67% hybrid rye were fed for 27 d. Body weights were determined at the start and conclusion of the experiment. Experiment 1 data were analyzed by a paired t-test and experiment 2 data were analyzed using SAS Proc Mixed with diet as the fixed effect and pen as a random effect. Contrast statements were used to test linear and quadratic effects of including graded levels of hybrid rye in diets. In experiment 1, preference for the hybrid rye diet was less (P &lt; 0.05) than for the corn diet on each day and for the overall experiment (Table 1). In experiment 2, body weights of pigs, average daily gain (ADG), and gain:feed did not differ among treatments. Average daily feed intake tended to decrease (linear, P &lt; 0.10) with increased hybrid rye inclusion. Taste preference and satiating effects of dietary fiber in the gastrointestinal tract may contribute to the reduced consumption of hybrid rye in both experiments. Nevertheless, the observation that diet did not influence ADG or gain:feed indicate that growing pigs may be fed diets with high inclusion rates of hybrid rye without negatively impacting growth.


2018 ◽  
Vol 98 (2) ◽  
pp. 289-298 ◽  
Author(s):  
M.M. Hossain ◽  
M. Begum ◽  
I.H. Kim

This study evaluated the efficacy of fenugreek seed extract (FSE) in growing pigs. About 140 growing pigs [(Yorkshire × Landrace) × Duroc] with an average body weight (BW) of 23.70 ± 2.80 kg were used in a 6 wk trial. Treatments were (on as-fed basis) two levels of FSE (FSE0, 0 or FSE0.2, 2 g kg−1 basal diet), and two levels of energy [low-energy diet (LED); 3160 or high-energy diet (HED); 3260 kcal kg−1 metabolizable energy (ME)]. Pigs in HED and FSE0.2 diets had higher final BW, average daily gain, and gain:feed ratio (G:F) compared with in LED, and FSE0 diets, respectively (P < 0.05). Pigs fed the FSE0.2 and HED diets had higher energy (E) digestibility than the FSE0 and LED diets, respectively (P < 0.05). Pigs fed the FSE0.2 diet increased serum immunoglobulin G (IgG), and reduced total cholesterol (TC) concentration than the FSE0 diet (P < 0.05). Hydrogen sulfide (H2S) and ammonia (NH3) gas emission in FSE0.2 diet were lower than that in FSE0 group (P < 0.05). In conclusion, results indicated that dietary supplementation of FSE improved growth performance, digestibility, serum IgG, reduced serum TC, and noxious gas emission in growing pigs.


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