Feeding increasing dietary inclusions of extrudedBrassica junceacanola expeller-pressed cake on growth performance, carcass characteristics, and jowl fatty acids of growing-finishing pigs

2014 ◽  
Vol 94 (2) ◽  
pp. 331-342 ◽  
Author(s):  
X. Zhou ◽  
M. G. Young ◽  
V. Zamora ◽  
R. T. Zijlstra ◽  
E. Beltranena

Zhou, X., Young, M. G., Zamora, V., Zijlstra, R. T. and Beltranena, E. 2014. Feeding increasing dietary inclusions of extruded Brassica juncea canola expeller-pressed cake on growth performance, carcass characteristics, and jowl fatty acids of growing-finishing pigs. Can. J. Anim. Sci. 94: 331–342. The energy value of canola meal is considered low because of its relatively higher fibre and depleted oil content. Brassica juncea is a novel canola species with thinner seed coat and reduced fibre, but twice the glucosinolate content of B. napus. Remaining oil in canola cake provides greater dietary energy compared with solvent-extracted meal. Extrusion prior to expeller pressing may increase fat and protein digestibility and decrease the antinutritive effects of glucosinolates. A total of 880 pigs (38 kg), housed in 40 pens by sex, were fed 0, 5, 10, 15, or 20% extruded B. juncea expeller-pressed cake (EPC) to slaughter weight (120 kg) to evaluate the effects on growth performance, dressing, carcass traits, and jowl fatty acids. Diets provided 9.6 MJ net energy (NE) and 1.0, 0.9, 0.8, 0.7, and 0.7 g standardized ileal digestible Lys:MJ NE over five growth phases (days 0–14, 15–35, 36–56, 57–74, day 75 to slaughter weight). Each 5% EPC inclusion linearly decreased (P<0.05) feed disappearance (ADFI) by 46 g and weight gain (ADG) by 8 g, but did not affect gain:feed. Each 5% EPC inclusion linearly decreased (P<0.01) carcass weight by 440 g, loin depth by 0.6 mm, and increased days on test by 0.43, but did not affect dressing, backfat thickness, lean yield, or carcass index. Each 5% EPC inclusion linearly increased (P<0.001) mono- and polyunsaturated fatty acid content and iodine value by 0.8, 1.0 and 1.4 g 100 g−1of jowl fat, respectively. In conclusion, increasing dietary EPC inclusions decreased ADFI, ADG, carcass weight, and loin depth, and increased jowl fat unsaturation. We attributed much of the decrease in feed intake to greater 3-butenyl (9.7 µmol g−1) content in extruded B. juncea canola expeller-pressed cake, a glucosinolate more bitter than others in conventional canola.

2021 ◽  
Vol 99 (Supplement_1) ◽  
pp. 69-70
Author(s):  
Christopher L Puls ◽  
Roger Arentson ◽  
Beau A Peterson ◽  
Gustavo Silva ◽  
Brandon Knopf ◽  
...  

Abstract Two studies were conducted to evaluate narasin inclusion level on the growth performance and carcass characteristics of growing-finishing pigs. The studies were carried out using a randomized complete block design with three narasin levels: 0 vs. 15 vs. 20 mg/kg. Study 1 (2,232 pigs) was carried out over a fixed time of 85 days from 33.4 ± 1.7 kg to 117.0 ± 2.6 kg. Study 2 (1,125 pigs) was carried out over a fixed time of 113 days from 28.0 ± 2.2 kg to 124.4 ± 6.0 kg. All pigs were fed diets that met or exceeded nutrient recommendations of growing-finishing pigs (NRC, 2012). Pigs were offered ad libitum access to feed and water throughout the study and weighed on day 0, 28, 56, and 84. Feed additions and feed remaining in the feeder at the time of pig weighing was recorded. Due to disruptions at the slaughter facility, carcass data were not collected on Study 1. For Study 2, pigs were sent for slaughter over five weeks, with the heaviest 20% of each pen being sent for slaughter each week. At slaughter, hot carcass weight was collected. Compared to controls, feeding 15 mg/kg narasin increased (P &lt; 0.05) final body weight (1.2 kg and 1.4 kg for Study 1 and 2, respectively), increased (P &lt; 0.05) hot carcass weight (1.3 kg), and tended (P = 0.07) to improve carcass yield (0.3 percentage units). Feeding 20 mg/kg narasin increased (P &lt; 0.05) overall G:F compared to controls (1.5% and 1.9% for Study 1 and 2, respectively). There were limited differences between the 15 and 20 mg/kg narasin levels. The results of this study confirm improvements in growth performance and carcass characteristics from feeding narasin to growing-finishing pigs. The outcomes of feeding 20 mg/kg narasin were unexpected and warrant further research.


2001 ◽  
Vol 72 (2) ◽  
pp. 289-296 ◽  
Author(s):  
T.-F. Lien ◽  
C.-P. Wu ◽  
B.-J. Wang ◽  
M.-S. Shiao ◽  
T.-Y. Shiao ◽  
...  

AbstractThis study investigated the effect of chromium picolinate supplementation on growth performance, carcass characteristics and lipid metabolism of growing-finishing pigs. Sixty Landrace ✕ Yorkshire ✕ Duroc (LYD) pigs with a mean initial body weight of 46·65 (s.e. 6·72) kg were randomly allocated into three groups with two replicates. They were supplemented with 0 , 200, or 400 μg/kg (ppb) chromium in the organic form of chromium picolinate for 90 days. Supplementation with chromium picolinate in the pigs’ ration improved their growth performance, enhanced average daily gain (P < 0·05), and increased their food consumption, especially in the 200 ppb group ( P > 0·05). Chromium picolinate supplementation also improved carcass characteristics, as the average back fat thickness was reduced and the loin-eye area was enhanced ( P < 0·05). The serum chromium concentration in the chromium picolinate supplemented groups was approximately twice that of the controls ( P < 0·05). Supplementation with chromium also markedly reduced serum total cholesterol, triacylglycerol (TG) and urea concentrations in the pig serum ( P < 0·05). Serum insulin was significantly decreased in the 400 ppb group, while serum glucose was decreased in the 200 ppb group ( P < 0·05). Very low density lipoprotein (VLDL) was reduced and low density lipoprotein (LDL) was increased in the chromium supplementation group. Meanwhile, the high density lipoprotein-cholesterol and VLDL-cholesterol were markedly increased, while LDL-cholesterol was significantly diminished ( P < 0·05) in the 200 ppb group. The adipocyte diameter and volume in the chromium-supplemented groups tended to be larger than in the control ( P = 0·07). In vitro studies indicated that incorporation of [u, 14C]glucose into total lipids (P < 0·05) was increased by chromium supplementation. However, there were no lipolysis differences among the groups (P > 0·05). The carcasses of the pigs that received the chromium supplemented ration contained less oleic acid (C18 : 1) and total unsaturated fatty acids (P < 0·05). On the other hand, the total saturated fatty acid content was higher than that of the controls (P < 0·05). Results in this study demonstrate that chromium picolinate supplementation in pigs has several beneficial effects.


1999 ◽  
Vol 79 (2) ◽  
pp. 139-147 ◽  
Author(s):  
N. P. Kjos ◽  
A. Skrede ◽  
M. Øverland

Thirty-six growing-finishing pigs, with an average initial weight of 24.8 kg ± 2.6 SD, were allocated to six groups to determine the effect of fish silage and fish fat in the diet on performance, carcass characteristics and sensory quality. The treatments were either a control diet, or one of three diets containing 50 g kg−1 fish silage and different levels of fish fat (2.5, 5.5 or 9.5 g kg−1). The diets were either fed until the time of slaughter (treatments CO, FSA1, FSB1 and FSC1), or until 60 kg liveweight followed by the control diet (the diets with 5.5 [treatment FSB2] and 9.5 g kg−1 fish fat [treatment FSC2]). Pigs were slaughtered at 98.7 kg ± 4.5 SD. No significant differences in growth performance or carcass quality were found among diets. The contents of the fatty acids C20:1 and C22:6 in the subcutaneous fat was increased by the dietary inclusion of fish silage. The total level of omega-3 fatty acids were highest for the 9.5 and the 5.5 g kg−1 fish fat diets when they were fed until slaughter. High blood plasma levels of vitamin E in pigs fed diets containing fish silage and 5.5 g kg−1 fish fat may explain these differences, and thus indicate the importance of vitamin E status when feeding diets containing fish silage and fish fat. The diets containing 2.5 and 9.5 g kg−1 fish fat until slaughter caused off-flavour of bacon after both 1 and 6 mo of frozen storage, and of loin muscle after 6 mo frozen storage. Curiously, the diet with fish silage and 5.5 g kg−1 fish fat could be used in diets for growing-finishing pigs without adverse effects. Key words: Fish silage, fish fat, growing-finishing pigs, growth performance, carcass characteristics, sensory quality


2017 ◽  
Vol 95 (9) ◽  
pp. 4052 ◽  
Author(s):  
K. F. Coble ◽  
J. M. DeRouchey ◽  
M. D. Tokach ◽  
S. S. Dritz ◽  
R. D. Goodband ◽  
...  

Animals ◽  
2021 ◽  
Vol 11 (2) ◽  
pp. 375
Author(s):  
Sheena Kim ◽  
Jin Ho Cho ◽  
Younghoon Kim ◽  
Hyeun Bum Kim ◽  
Minho Song

The present study was conducted to evaluate the effects of replacing corn with brown rice on growth performance, nutrient digestibility, carcass characteristics, and gut microbiota of growing and finishing pigs. A total of 100 growing pigs (23.80 ± 2.96 kg BW; 10 weeks of age) were randomly allotted to 4 dietary treatments (5 pigs/pen; 5 replicates/treatment) in a randomized complete block design (block = BW) as follows: corn-soybean meal basal diet (CON) and replacing corn with 50% (GBR50), 75% (GBR75), and 100% (GBR100) of ground brown rice. Each trial phase was for 6 weeks. During the growing period, there were no differences on growth performance and nutrient digestibility among dietary treatments. Similarly, no differences were found on growth performance, nutrient digestibility, and carcass characteristics of pigs during the finishing period among dietary treatments. As a result of the beta diversity analysis, microbial populations were not clustered between CON and GBR100 during the growing phase, but clustered into two distinct groups of CON and GBR100 during the finishing phase. In conclusion, brown rice can be added to the diets of growing-finishing pigs by replacing corn up to 100% without negatively affecting growth performance of the pigs; additionally, this may have an effect on changes in pig intestinal microbiota if continued for a long time.


Sign in / Sign up

Export Citation Format

Share Document