EFFECTS OF HIGH FIBRE, AND PELLETED AND NON-PELLETED HIGH FIBRE-HIGH FAT RATIONS ON PERFORMANCE AND CARCASS CHARACTERISTICS OF BACON PIGS

1960 ◽  
Vol 40 (2) ◽  
pp. 126-133 ◽  
Author(s):  
C. D. T. Cameron
Keyword(s):  
Carcass Characteristics ◽  
Red Clover ◽  
Finishing Pigs ◽  
High Fat ◽  
Growing Period ◽  
High Fibre ◽  
Fat Thickness ◽  
Dressing Percentage

A study involving 96 individually-fed growing-finishing pigs was conducted to determine the effects of high fibre, and pelleted and non-pelleted high fibre-high fat rations, on the performance and carcass characteristics of bacon type pigs.Rate of liveweight gain, and gains adjusted to equal feed intakes, decreased when the fibre level was increased by substituting ground mixed timothy-red clover hay for part of the barley in the control rations. Rate of gain increased in the finishing period with the introduction of 5 per cent of stabilized tallow into the high fibre rations.Pelleting the high fibre-high fat rations had little effect on the performance of the pigs in the growing period, while rate of gain increased in the finishing period as a result of the pelleting process. This increase in rate of gain was associated with increased feed intake.High fibre rations resulted in lower dressing percentage and loin fat thickness, and increased Advanced Registry belly and total scores. The addition of 5 per cent of stabilized tallow to the high fibre rations resulted in increased shoulder and loin fat thickness. Pelleting of the high fibre-high fat rations had no significant effect on carcass measurements, although the pigs fed pelleted rations consumed more feed per day and made more rapid gains in the finishing period than those fed the same rations non-pelleted.

scholarly journals Seasonal and year dynamics in the quality characteristics in pig carcasses

2016 ◽  
Vol 32 (4) ◽  
pp. 341-352 ◽  
Author(s):  
Jivko Nakev ◽  
Teodora Popova ◽  
Maya Ignatova ◽  
Penka Marinova ◽  
Tania Nikolova
Keyword(s):  
Carcass Characteristics ◽  
Quality Characteristics ◽  
Commercial Production ◽  
The Other ◽  
Carcass Weight ◽  
Longissimus Dorsi ◽  
Finishing Pigs ◽  
Lean Meat ◽  
Fat Thickness ◽  
Pig Carcasses

The aim of our study was to assess the dynamics of the characteristics in pig carcasses as affected by the season and year of slaughter. A total of 106 027 carcasses of growing-finishing pigs of commercial production, slaughtered in the same abattoir in 2014 and 2015 were included in the study. The carcasses were classified using UltraFOM 200 device, as the characteristics controlled were back-fat thickness at two locations and the depth of m. Longissimus dorsi. These measurements were used to further determine the lean meat percentage. The results of the study showed significant differences in the dynamics of changes of carcass characteristics during the seasons and the years. The highest lean meat percentage was found in summer (56.48%), followed by spring (56.34%), autumn (56.29%) and winter (56.10%). On the other hand, the pigs slaughtered in winter displayed highest carcass weight and back-fat thickness at both locations.

Bromocriptine-induced reduction of body fat in pigs

1990 ◽  
Vol 68 (4) ◽  
pp. 931-936 ◽  
Author(s):  
L. L. Southern ◽  
A. H. Cincotta ◽  
A. H. Meier ◽  
T. D. Bidner ◽  
K. L. Watkins
Keyword(s):  
Feed Intake ◽  
Feed Efficiency ◽  
Carcass Characteristics ◽  
Feed Utilization ◽  
Finishing Pigs ◽  
Initial Weight ◽  
Intact Female ◽  
Urea Nitrogen ◽  
Plasma Urea ◽  
Fat Thickness

Abstract An experiment was conducted with 36 crossbred finishing pigs (18 male castrates and 18 females) to evaluate the effect of bromocriptine implants on growth, feed intake, feed efficiency, plasma urea nitrogen (PUN) and carcass characteristics. Three levels of bromocriptine (0, 5 and 10 mg/[pig·d]) were administered, via implants at the base of the ear, to six (two replicates of three) male castrates or to six (two replicates of three) intact female pigs (2 × 3 factorial arrangement of treatments). Average initial weight of pigs at the time of implantation was 89.7 kg, and the implants remained in the pigs for 28 (replicate 1) or 30 (replicate 2) d prior to slaughter. Gain, feed intake and efficiency of feed utilization were not affected (P > .10) by bromocriptine. Plasma urea nitrogen was lower in female pigs administered 10 mg bromocriptine; bromocriptine did not affect PUN of male pigs (gender × bromocriptine, P < .08). Tenth rib fat thickness and average backfat thickness were lower (P < .06) and percentage of muscling was higher (P < .06) in pigs implanted with bromocriptine. Female pigs had less 10th rib fat but larger loin eye areas and a greater percentage of muscling than male pigs.

scholarly journals Effects of immunological castration (Improvest) on changes in dressing percentage and carcass characteristics of finishing pigs

2014 ◽  
Vol 92 (1) ◽  
pp. 359-368 ◽  
Author(s):  
D. D. Boler ◽  
C. L. Puls ◽  
D. L. Clark ◽  
M. Ellis ◽  
A. L. Schroeder ◽  
...  
Keyword(s):  
Carcass Characteristics ◽  
Finishing Pigs ◽  
Dressing Percentage ◽  
Immunological Castration

Nutrient digestibility, performance and carcass traits of growing-finishing pigs fed diets containing dried wheat distillers grains with solubles

2006 ◽  
Vol 86 (4) ◽  
pp. 527-529 ◽  
Author(s):  
P. A. Thacker
Keyword(s):  
Key Words ◽  
Carcass Traits ◽  
Nutrient Digestibility ◽  
Distillers Grains ◽  
Finishing Pigs ◽  
Distillers Grains With Solubles ◽  
Growing Period ◽  
Key Words Wheat ◽  
Dressing Percentage ◽  
Period Performance

Seventy-two pigs were fed graded levels of wheat distillers grains with solubles (DDGS). During the growing period, gain, intake and nutrient digestibility declined (P < 0.01) as wheat DDGS increased. During the finishing period, performance was unaffected by wheat DDGS. At slaughter, dressing percentage and loin lean declined (P <0.01). Key words: Wheat distiller's dried grains with solubles, pigs, performance, digestibility, carcass traits

The effect of slaughter weight on the carcass characteristics of pork with sex type as co-variable

2016 ◽  
Vol 56 (1) ◽  
pp. 55 ◽  
Author(s):  
E. Pieterse ◽  
L. C. Hoffman ◽  
F. K. Siebrits ◽  
E. L. Gloy ◽  
E. Polawska
Keyword(s):  
Subcutaneous Fat ◽  
Lumbar Vertebrae ◽  
Carcass Characteristics ◽  
Intramuscular Fat ◽  
Muscle Area ◽  
Eye Muscle ◽  
Slaughter Weight ◽  
Sex Type ◽  
Fat Thickness ◽  
Dressing Percentage

A study was conducted with 192 pigs of three sex types with treatments according to slaughter weight (65 kg to 144 kg). The main statistical differences observed were for slaughter weight with significant (P < 0.05) and highly significant (P < 0.01) differences describing more than 10% of variance observed for all characteristics (liveweight, warm carcass weight, dressing percentage, eye muscle area, subcutaneous fat thickness, intramuscular fat area, subcutaneous fat : eye muscle area, intramuscular fat : eye muscle area, fat thickness, muscle depth, carcass length, ham circumference, ham length and chest depth) measured. Sex differences (P < 0.05) were also observed for dressing percentage, fat measurements and muscle depth measured between the 5th and 6th lumbar vertebrae. Sex type differences, in all instances, accounted for 10% or less variance except for subcutaneous fat : eye muscle area ratio (18.47%). It was shown that although significant sex type differences (P < 0.05) existed; slaughter weight had the largest effect on carcass characteristics in the given circumstances accounting for most of the observed variance.

scholarly journals Effect of silage source, physically effective neutral detergent fiber, and undigested neutral detergent fiber concentrations on performance and carcass characteristics of finishing steers

2021 ◽  
Author(s):  
M C S Pereira ◽  
W Z Yang ◽  
K A Beauchemin ◽  
T A McAllister ◽  
K M Wood ◽  
...  
Keyword(s):  
Carcass Characteristics ◽  
Neutral Detergent Fiber ◽  
Marbling Score ◽  
Liver Abscesses ◽  
Finishing Steers ◽  
Quality Grade ◽  
Fat Thickness ◽  
Dressing Percentage ◽  
Grade 3 ◽  
Barley Silage

Abstract This study was designed to evaluate the effect of silage source (barley vs. wheat silage) when harvested at two chop lengths (low vs. high physically effective NDF [peNDF]) and when barley silage was partially replaced with straw to increase the undigested neutral detergent fiber (uNDF) concentration on performance and carcass characteristics of finishing steers. Four hundred and fifty yearling commercial crossbred steers with an initial body weight (BW) of 432 ± 30.5 kg were allocated to 30 pens and fed diets containing 90% concentrate:10% forage for 123 days in a completely randomized block design with a 2×2 + 1 factorial arrangement. Treatments included: 1) barley silage (BarS) with low peNDF (LpeNDF); 2) BarS with high peNDF (HpeNDF); 3) BarS with straw to yield a diet with LpeNDF + uNDF; 4) wheat silage (WhS) LpeNDF; and 5) WhS HpeNDF. There were no silage x peNDF interactions for dry matter intake (DMI), average daily gain (ADG), or gain to feed ratio (G:F), but cattle fed WhS LpeNDF had a lower (P &lt; 0.01) proportion of yield grade 3 and a greater proportion in yield grade 2 carcasses than cattle fed BarS LpeNDF or HpeNDF and WhS HpeNDF. Cattle fed WhS LpeNDF had greater (P = 0.02) incidence of severe liver abscesses when compared to cattle fed BarS LpeNDF or HpeNDF and WhS HpeNDF. Cattle fed BarS consumed less (P &lt; 0.01) uNDF as a percentage of BW, had increased (P = 0.02) ADG, heavier (P = 0.02) hot carcass weight, with greater (P = 0.01) back fat thickness, and (P &lt; 0.01) incidence of minor liver abscesses when compared to cattle fed WhS. Feeding HpeNDF did not affect DMI, ADG, or G:F, but increased (P = 0.02) marbling score, and reduced (P &lt; 0.01) the proportion AA quality grade and increased (P &lt; 0.01) those classified as AAA as compared to cattle fed LpeNDF. Cattle fed low uNDF had lesser (P &lt; 0.01) uNDF intake as a percentage of BW, greater dressing percentage (P = 0.01), had a lower (P &lt; 0.01) proportion of carcasses in yield grade 2, and a greater (P &lt; 0.01) proportion of carcasses in yield grade 3 when compared to cattle fed high uNDF. Thus, silage source, peNDF, and uNDF content do not impact DMI or G:F when diets contain 10% forage, but BarS relative to WhS as well increasing the peNDF concentration may increase ADG, HCW, back fat thickness, dressing percentage, marbling score and carcasses classified as quality grade AAA. Future research is needed to evaluate the usefulness of peNDF and uNDF in rations for finishing cattle.

scholarly journals Effect of zilpaterol hydrochloride on the carcass characteristics of Katahdin lamb terminal crosses

2015 ◽  
Vol 2 (2) ◽  
Author(s):  
José Armando Partida-de-la-Peña ◽  
Tania Alejandra Casaya-Rodríguez ◽  
María Salud Rubio-Lozano ◽  
Rubén Danilo Méndez-Medina
Keyword(s):  
Factorial Design ◽  
Crude Protein ◽  
Carcass Characteristics ◽  
Live Weight ◽  
Longissimus Dorsi ◽  
Zilpaterol Hydrochloride ◽  
Fat Thickness ◽  
Dressing Percentage

Zilpaterol hydrochloride (ZH) supplementation (0 vs. 0.15 mg/kg live weight) was evaluated based on the carcass characteristics of Katahdin x Charollais (32 KCh) and Katahdin x Dorper (28 KD) crosses. Lambs were fed a mixed ration with 14% crude protein (CP) and 2.9 Mcal EM/kg DM. Data were analyzed using a completely randomized 2 x 2 factorial design: 2 genotypes (KCh and KD) and 2 ZH levels (0 and 0.15 mg/kg live weight). No interaction was found between ZH and the genotypes. Zilpaterol hydrochloride increased dressing percentage from 52.1 ± 0.3 to 53.7 ± 0.4% (P < 0.001). Animals that received ZH supplementation increased (P < 0.001) the area of their Longissimus dorsi (Ld) by 18.5% and had 7.5% more muscle, 6.0% less bone and 22.4% less fat compared with control lambs (P < 0.05). The breed of the sire had no effect on any of the variables studied. Final pH, fat thickness, conformation and linear carcass measurements did not change with ZH supplementation.

scholarly journals PSVI-3 Estimation of the optimal standardized ileal digestible valine to lysine ratio required for growing-finishing pigs in low crude protein diets

2019 ◽  
Vol 97 (Supplement_2) ◽  
pp. 204-204
Author(s):  
Q, Huang ◽  
D Pangeni ◽  
Hayford Manu ◽  
L Hanson ◽  
S K Baidoo
Keyword(s):  
Crude Protein ◽  
Phase 1 ◽  
Random Effect ◽  
Carcass Characteristics ◽  
Quadratic Model ◽  
Experimental Unit ◽  
Finishing Pigs ◽  
Phase 3 ◽  
Fat Thickness ◽  
Protein Diets

Abstract Aim was to determine standardized ileal digestible Val to Lys ratios for growing - finishing pigs fed low CP diets on performance, BUN and carcass characteristics. SID Val to Lys ratios for BW 42.5 to 70.3 kg, 70.3 to 98.1 kg and 98.1 to 128.7 kg pigs. Pigs (n = 400, 10 pens / treatment, 8 pigs / pen) blocked by BW and randomly assigned to 1 of 5 treatments. Diets were SID Val to Lys of 0.55, 0.60, 0.65, 0.70 and 0.75. Data analyzed as a RCBD with PROC MIXED procedure of SAS with pen (experimental unit), treatment (fixed effect), and BW block (random effect). In phase 1, linear and quadratic increase of ADG (Linear, P = 0.03; Quadratic, P = 0.04), BUN decreased (Linear, P = 0.01; Quadratic, P = 0.04). SID Val:Lys for ADG, linear broken-line and quadratic model were 0.64 and 0.66, respectively. BUN for SID Val:Lys were 0.63 (P = 0.01) and 0.70 (P = 0.04). In phase 2, ADG increased (Linear, P = 0.04; Quadratic, P = 0.01) and G:F increased (Linear, P = 0.02; Quadratic, P = 0.04). a linear (P = 0.04) and quadratic (P = 0.01) increase in ADG. SID Val:Lys ADG were 0.66 and 0.70. with the increase of SID Val:Lys ratios. SID Val:Lys for G:F were 0.70 and 0.75, respectively. In phase 3, the SID Val:Lys to maximize ADG were 0.67 (Linear, P = 0.04) and 0.72 (Quadratic, P < 0.01). as the SID Val:Lys increased. Supplementation of low CP diets with high levels of SID Val:Lys increase decreased (Linear, P = 0.02) fat depth, at 0.65. but no effect on other carcass characteristics. In conclusion, SID Val:Lys requirement for ADG in three phases were 0.64, 0.66, 0.67, and 0.66, 0.70, 0.72, using a linear broken-line and quadratic model respectively. BUN and fat thickness appears to be minimized at Val:Lys ratio of 0.65 and a potential to increase lean percentage.

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