Five randomized block design experiments were conducted to determine the limiting amino acids (or other nutrients) in low-CP (12%) sorghum-soybean meal (S-SBM) diets for the 10- to 20-kg pig. Average initial weights were 10.7, 10.5, 9.1, 10.2, and 10.9 kg in Exp. 1, 2, 3, 4, and 5, respectively. The nine treatments in Exp. 1 were 1) Basal (B, 12% CP), 2) B + .26% methionine (Met), 3) B + .24% histidine (His), 4) B + .21% isoleucine (Ile), 5) B + .12% tryptophan (Trp), 6) B + .24% valine (Val), 7) B+Met+His, 8) B+Met+His+Ile+Trp+Val (AllAA), and 9) S-SBM positive control (PC, 21.81% CP). All diets provided 1.10% Lys and .83% Thr. Individual addition of His and Val to the B diet increased (P < .10) gain. The gain of pigs fed the AllAA diet did not differ (P > .10) from that of pigs fed the PC diet. Experiment 2 consisted of the nine treatments used in Exp. 1, except that Treatment 7 in Exp. 2 contained His+Val (H+V) rather than Met+His. Individual additions of Ile, Trp, and H+V increased (P < .10) gain/feed compared with the B diet. Performance of pigs fed the AllAA diet was not different (P > .10) from that of pigs fed the PC diet. Addition of NaHCO3 (Exp. 3), Phe (Exp. 4), or nonessential N (Exp. 5) to the AllAA diet did not affect (P > .10) pig performance compared with pigs fed the AllAA diet. However, in Exp. 3, pigs fed the PC diet grew faster (P < .03) and had greater (P < .10) apparent N digestibilities than pigs fed the AllAA diet. In summary, low-CP, S-SBM diets may be equally third limiting in His, Ile, Trp, and Val for the 10- to 20-kg pig.
Download full-text PDF |
Source |
|---|---|
| http://dx.doi.org/10.2527/1994.723638x | DOI Listing |
Publication Analysis
Top Keywords
Similar Publications
Effects of multienzyme supplementation on energy and nutrient digestibility in various feed ingredients for pregnant gilts.
J Anim Sci
January 2025
Department of Animal Science, South Dakota State University, Brookings, SD, 57007, USA.
The utilization of exogenous fiber-degrading enzymes in commercial swine diets is a strategy to increase the nutrient and energy density of poorly digestible ingredients. In a prior set of studies, dietary multienzyme blend (MEblend) supplementation increased the apparent total tract digestibility (ATTD) of nutrients, non-starch polysaccharides, and energy in complete high-fibrous gestation diets by 6% when fed to gestating sows. The current study aimed to determine the effects of MEblend (containing xylanase, β-glucanase, cellulase, amylase, protease, pectinase, and invertase activities) supplementation on ATTD of energy and nutrients of individual feedstuffs commonly used in gestating sow diets across major pork-producing regions worldwide, which differ in their fibrous components.
View Article and Find Full Text PDFProbiotics improve eggshell quality via regulating microbial composition in the uterine and cecum.
Poult Sci
January 2025
State Key Laboratory of Swine and Poultry Breeding Industry, Sichuan Agricultural, University, Chengdu, 611130, China; Farm Animal Genetic Resources Exploration and Innovation Key Laboratory of Sichuan Province, Sichuan Agricultural University, Chengdu, 611130, China; Key Laboratory of Livestock and Poultry Multi-omics, Ministry of Agriculture and Rural Affairs, College of Animal and Technology (Institute of Animal Genetics and Breeding), Chengdu, 611130, China. Electronic address:
Probiotics benefit the health and production performance of chickens, but their impact on egg and eggshell quality, particularly in the later stage, remains unclear. Here, 1-day-old Tianfu green shell-laying hens were fed either non-probiotics feed (n = 180) or feed supplemented with 100 mg / kg probiotics (n = 180). 16S rDNA sequencing indicated that dietary probiotics decreased the distribution of uterine p_Firmicutes, g_Fusobacterium, and s_Fusobacterium_unclassified, while increased p_Proteobacteria, g_Ralstonia, and s_Ralstonia_unclassified.
View Article and Find Full Text PDFInteractions between gut microbes and host promote degradation of various fiber components in Meishan pigs.
mSystems
January 2025
Key Laboratory of Pig Genetic Resources Evaluation and Utilization (Nanjing), Ministry of Agriculture and Rural Affairs, Institute of Swine Science, College of Animal Science and Technology, Nanjing Agricultural University, Nanjing, China.
Unlabelled: Although metagenomic investigations into microbial fiber-degrading capabilities are currently prevalent, there is a notable gap in research concerning the regulatory mechanisms underpinning host-microbiota interactions that confer tolerance to high-fiber diets in pigs. In this study, 28 Meishan (MS) and 28 Large White (LW) pigs were subjected to feeding experiments involving various fiber levels. Subsequently, multi-omics was employed to investigate the influence of host-microbiota interactions on the fiber degradation of pigs.
View Article and Find Full Text PDFInvestigating the influence of blood meal sources on the composition of culturable haemolytic gut bacteria of a wild-caught BTV vector Culicoides oxystoma Kieffer (Diptera: Ceratopogonidae).
Med Vet Entomol
January 2025
Entomology Research Unit, Department of Zoology, The University of Burdwan, Burdwan, India.
Culicoides oxystoma Kieffer (Diptera: Ceratopogonidae) transmits many pathogens, including seven viruses, four protozoa and one nematode. This species has a wide distribution range across northern Afro-tropical, Palearctic, Australian, Indo-Malayan realms with a broad host spectrum, including cattle, buffaloes, sheep, pigs, dogs, horses and even humans. The heterogeneous nature of Culicoides' blood-feeding patterns is well documented, but the influence of various host blood meal sources on gut bacterial composition remains scant.
View Article and Find Full Text PDFFeeding nursery pigs diets containing peroxidized soybean oil has minimal effects on oxidative status but dramatically reduces serum vitamin E concentrations.
J Anim Sci
January 2025
USDA-ARS National Laboratory for Agriculture and the Environment, Ames, IA 50011, USA.
A subgroup of pigs from two experiments (EXP) were selected to evaluate the impact of pigs fed diets containing peroxidized soybean oil (SO) on plasma-based measures of oxidative stress and vitamin E. Pigs were fed diets containing SO that was either unprocessed (23 °C; peroxide value of 3 meq/kg and an anisidine value of 4) or thermally processed at 135 °C for 42 h (peroxide value of 30 meq/kg and an anisidine value of 501). The corn-soybean meal-based diets contained either 10% SO (EXP 1) or 8% SO (EXP 2).
View Article and Find Full Text PDFWant AI Summaries of new PubMed Abstracts delivered to your In-box?
Enter search terms and have AI summaries delivered each week - change queries or unsubscribe any time!