Swine Resources - Nutrition

August 2019

Dietary chromium propionate inclusion may benefit growth performance in heat-stressed finishing pigs.

August 2019

1. Effects of a nursery feed regimen with spray-dried bovine plasma on performance and mortality of weaned pigs positive for porcine reproductive and respiratory syndrome virus.

The study was conducted to evaluate the effect of plasma supplementation in PRRSV positives piglets during the nursery period. Higher BW was observed for pigs fed spray dried plasma during the nursery period and cumulative ADG and ADFI were also higher. Moreover, a reduction of the mortality rate was also reported. It may be concluded that spray dried plasma supplementation of PRRSV challenged pigs during the nursery period may exert positive effects on performance and piglet loss reduction.

2. Spray dried plasma as an alternative to antibiotic in piglet feeds, mode of action and biosafety.

Spray dried plasma may represent an effective alternative to antibiotics for piglets, particularly during the first weeks post-weaning as better or equivalent efficacy on pig performance compared with antibiotics or other alternative antimicrobial products has been reported. The efficacy of SDP in animal feed appears to be related mainly to an improved barrier function of the gut mucosa and the modulation of the mucosal immune response. The available biosafety studies provide enough evidence to support that commercial SDPP is a safe product for pigs.

3. Influence of spray dried porcine plasma in starter diets associated with a conventional vaccination program on wean to finish performance.

Vaccination supported a long-term antibody response against PCV2 and a moderate but weaker antibody response against Mhyo for early finishing pigs challenged with PCV2. Using SDPP in the starter diet along with vaccination supported the best long-term beneficial effects on survival to market and carcass weight.

4. Effects of spray-dried porcine plasma on growth performance, immune response, total antioxidant capacity, and gut morphology of nursery pigs.

Dietary SDPP increased growth performance was observed during the nursery period. After 1 week post-weaning, pigs fed SDPP had greater ADG, ADFI and G:F compared with CTL pigs. On d 28, pigs fed SDPP had greater BW and tended to have greater ADG and ADFI compared with CTL pigs. Moreover, the positive effect on gut morphology may be explained via the increased proliferation of enterocytes.

5. Spray dried animal plasma as an alternative to antibiotics in weanling pigs – A review.

In weanling pigs, the use of porcine spray dried plasma has the highest efficacy, which is partly explained by the specificity of its IgG against porcine pathogens. It is established that after weaning, the optimal inclusion level may be between 4 and 8%. The improved feed efficiency may be explained by lower expenditure of energy and nutrients to build an immune response against the challenge. Finally, the IgG and other bioactive substances contained may help to reduce the incidence of diarrhea in post-weaned piglets feed plasma.

References

FEDNA: http://www.fundacionfedna.org/
NRC 1982. United States-Canadian Tables of Feed Composition: Nutritional Data for United States and Canadian Feeds, Third Revision.
Rostagno, H,S, 2017, Tablas Brasileñas para aves y cerdos, Composición de Alimentos y Requerimientos Nutricionales, 4° Ed

Follow this link to read the full article at pig333.com. 

David Solà-Oriol
www.pig333.com

July 2019

Life yeast supplementation during gestation, lactation and nursery periods may lead to a greater piglet growth performance. 

June 2019

The fiber in the diet improves the colostrum yield of sows and it helps reducing farrowing length. But... how many grams of fiber are recommended to be supplied to the sows during last week prior to farrowing?

Substantial progress has been made during the last 5 years to understand how we should feed sows more optimal around farrowing, and fiber in the diet seems to be beneficial for sow productivity for many reasons, and currently it is recommended to supply 500 to 600 grams of fiber to sows each day the last week prior to farrowing.

March 2019

Abstract
Antibiotic use has been limited in U.S. swine production. Therefore, the objective was to determine whether supplementing l-glutamine at cost-effective levels can replace dietary antibiotics to improve piglet welfare and productivity following weaning and transport. Based on previous research, we hypothesized that withholding dietary antibiotics would negatively affect pigs while diet supplementation with 0.20% l-glutamine (GLN) would have similar effects on pig performance and health as antibiotics. Mixed sex piglets (N = 480; 5.62 ± 0.06 kg BW) were weaned (18.4 ± 0.2 d of age) and transported for 12 h in central Indiana, for 2 replicates, during the summer of 2016 and the spring of 2017. Pigs were blocked by BW and allotted to 1 of 3 dietary treatments (n = 10 pens/dietary treatment/replicate [8 pigs/pen]); antibiotics (A; chlortetracycline [441 ppm] + tiamulin [38.6 ppm]), no antibiotics (NA), or GLN fed for 14 d. On days 15 to 34, pigs were provided common antibiotic-free diets in 2 phases. Data were analyzed using PROC MIXED in SAS 9.4. Day 14 BW and days 0 to 14 ADG were greater (P = 0.01) for A (5.6% and 18.5%, respectively) and GLN pigs (3.8% and 11.4%, respectively) compared with NA pigs, with no differences between A and GLN pigs. Days 0 to 14 ADFI increased for A (P < 0.04; 9.3%) compared with NA pigs; however, no differences were detected when comparing GLN with A and NA pigs. Once dietary treatments ceased, no differences (P > 0.05) in productivity between dietary treatments were detected. On day 13, plasma tumor necrosis factor alpha (TNF-α) was reduced (P = 0.02) in A (36.7 ± 6.9 pg/mL) and GLN pigs (40.9 ± 6.9 pg/mL) vs. NA pigs (63.2 ± 6.9 pg/mL). Aggressive behavior tended to be reduced overall (P = 0.09; 26.4%) in GLN compared with A pigs, but no differences were observed between A and GLN vs. NA pigs. Huddling, active, and eating/drinking behaviors were increased overall (P < 0.02; 179%, 37%, and 29%, respectively) in the spring replicate compared with the summer replicate. When hot carcass weight (HCW) was used as a covariate, loin depth and lean percentage were increased (P = 0.01; 4.0% and 1.1%, respectively) during the spring replicate compared with the summer replicate. In conclusion, GLN supplementation improved pig performance and health after weaning and transport similarly to A across replicates; however, the positive effects of A and GLN were diminished when dietary treatments ceased.

Alan W Duttlinger, Kouassi R Kpodo, Donald C Lay Jr., Brian T Richert, Jay S Johnson
Journal of Animal Science, Volume 97, Issue 5, May 2019, Pages 2035–2052, https://doi.org/10.1093/jas/skz098

January 2019

Copper sulphate

As of August 13th, 2019, the maximum copper limit allowed in piglet feed will be reduced. Faced with this change, what nutritional strategies can I use?

December 2018

L-arginine supplementation at late gestation may enhance farrowing performance.

October 2018

Stomach size is a limiting factor in feed intake and profit potential.

Getting newly-weaned pigs to eat several times per day is a first step toward profitable finishing. Crack an egg, and you’ll understand why.

July 2018

Additional fermented corn and soybean mix in corn soybean-based diets for lactating sows may improve sow and litter performance during lactation.

May 2018

Chlorogenic acid supplementation in weanling diets may improve growth performance, antioxidant capacity and nutrient absorption function in weaned pigs.