Growth performance, blood metabolic responses, and carcass characteristics of grower and finisher South African Windsnyer-type indigenous and Large White × Landrace crossbred pigs fed diets containing ensiled corncobs1

Abstract This experiment evaluated varying levels of Amarula (Sclerocarya birrea A. Rich) nut cake (ANC) on growth performance, nutrient digestibility and carcass characteristics in pigs. Thirty Large White × Landrace (LW × LR) pigs were stratified by weight (average live weight of 20 ± 5 kg) and randomly allocated to the five experimental diets that contained 0 (control), 50, 100, 150 and 200 g ANC/kg DM. Each pig served as a replicate unit, housed individually. Bodyweight, feed intake, average daily gain (ADG) and feed conversion ratio (FCR) were recorded weekly throughout the trial period. On completion of the growth trial, following a 3-day adaptation, a nutrient digestibility study was conducted over 5 days. Thereafter, pigs were fasted for twelve hours, weighed, slaughtered, and carcass samples were collected for analysis. Feed intake was not affected by dietary treatment, but ADGs were reduced at ANC levels > 15%, resulting in poor FCR. Protein digestibility was reduced at ANC levels > 15%, while ether extract and fibre levels increased. Warm and cold carcass weights were lower at ANC levels > 15, with improved meat redness and lightness. It was concluded that ANC could replace SBM in the diet of growing pigs at less than 15% inclusion level.

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PERFORMANCE AND CARCASS CHARACTERISTICS OF FINISHING PIGS FED RAW OR EXTRUDED FULL-FAT SOYA BEANS RATIONS IN HUMID LOWLAND TROPICS

Nigerian Journal of Animal Production ◽

10.51791/njap.v22i1.2032 ◽

2021 ◽

Vol 22 (1) ◽

pp. 64-67

Author(s):

H. A. FASHINA-BOMBATA ◽

O. O. TEWE

Keyword(s):

Body Weight ◽

Carcass Traits ◽

Carcass Characteristics ◽

Soya Bean ◽

Finishing Pigs ◽

Large White ◽

Swine Diets ◽

Crossbred Pigs

Sixteen Landracex Large White crossbred pigs averaging 56 kg body weight were used in a study to uvestigate the effects of feeding raw full-fat soyu bean (RSB) rations on the performance of pigs in humid lowland tropics. Raw full-lat soya bean was used to replace extruded full-fat soyabean at 33, 67 and 100% in finishing swine diets having 16% C.P. and 2800 kcal/kgME and fed ad lib. ADG was reduced by the addition of RSB to the diets (P>0.05). However, FE was improved (P>0.05) when 67 over (P>0.05) when 67 and 100% RSB were added to the diets. RSB significantly (P<0.05) affected backfat deposition and percent lean cut of the carcass. Other carcass traits were not affected.

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PSIII-10 The Effect of Sire Line on Grow-finish Performance, Carcass Characteristics, and Meat Pricing Variables for Commercial Crossbred Pigs

Journal of Animal Science ◽

10.1093/jas/skab054.286 ◽

2021 ◽

Vol 99 (Supplement_1) ◽

pp. 169-170

Author(s):

H Manu ◽

M Fletcher ◽

K Fang ◽

Sudario Roberto Silva Junior ◽

J Dunkelberger ◽

...

Keyword(s):

Feed Efficiency ◽

Fixed Effects ◽

Random Effect ◽

Carcass Characteristics ◽

White Female ◽

Large White ◽

Equivalent Number ◽

Genetic Source ◽

Crossbred Pigs ◽

Synthetic Line

Abstract The objective of this study was to evaluate the effect of sire line on wean-to-finish performance, carcass characteristics, and meat pricing variables. Pigs used for this study were the progeny of a commercial Landrace x Large White female mated to one of the following sire lines: a purebred Duroc line (Line S1), or a synthetic (Line S2) or purebred Duroc line (Line S3) originating from a different genetic source. An equivalent number of pigs (n =144) were used per group, for 432 pigs placed on test. Average initial weights per line were 6.67 ± 0.24, 6.67 ± 0.24, and 6.60 ± 0.24 for lines S1, S2, and S3, respectively. At placement, 8 pigs were assigned to each pen (split sex) and blocked by line and initial BW, with 18 replicates per line. Data were analyzed at the pen level using the PROC MIXED procedure of SAS, where the effects of line, sex, and line*sex were fitted as fixed effects and replicate was fitted as a random effect. Overall, piglets from line S2 (0.403 vs 0.381; P ≤ 0.0004) and line S3 (0.402 vs 0.381; P ≤ 0.001) had improved GF compared with piglets from line S1. The ADFI was greater in piglets from line S1 relative to piglets from line S2 (2.264 vs 2.117 kg; P ≤ 0.0001) and line S3 (2.264 vs 2.159 kg; P ≤ 0.004). The ADG, HCW, dressing yield, and loin depth were not different among treatment (P > 1.00). Piglets from line S3 had greater percent lean (57.12 vs 56.29 %; P ≤ 0.0001) and better carcass grade premium ($7.07 vs 6.60; P ≤ 0.0291) relative to piglets from line S1. In conclusion, line S1 piglets had greatest ADFI, but line S2 pigs and line S3 piglets had better feed efficiency. Line S3 pigs were leaner and had better carcass grade premium.

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Dietary inclusion of ensiled avocado oil cake affects growth, nutrient digestion, and carcass characteristics of pigs

South African Journal of Animal Science ◽

10.4314/sajas.v50i6.11 ◽

2021 ◽

Vol 50 (6) ◽

Author(s):

M.L. Seshoka ◽

P.J. Fourie ◽

A.T. Kanengoni ◽

I.M.M. Malebana ◽

R.S. Thomas ◽

...

Keyword(s):

Growth Performance ◽

Average Daily Gain ◽

Carcass Characteristics ◽

Live Weight ◽

Nutrient Digestibility ◽

Feed Conversion ◽

Large White ◽

Avocado Oil ◽

Conversion Rates ◽

Daily Gain

In this experiment, the effects were evaluated of various dietary inclusion levels of avocado oil cake (AOC) silage on growth performance, nutrient digestibility, and carcass characteristics in pigs. A mixture of 70% AOC, 25% wheat bran, and 5% sugarcane molasses was ensiled in 200 L drums for 90 days. It was then incorporated at 0%, 3% and 5% in the experimental diets. Twenty-seven Large White cross Landrace (LW x LR) weaner pigs, with an average live weight of 22 kg, were stratified by weight and randomly allocated to the three experimental diets (9 pigs/diet). Pigs were weighed individually each week throughout the trial. Daily feed intake, average daily gain (ADG) and feed conversion rates (FCRs) were recorded. A nutrient digestibility study was carried out on completion of the growth trial. At the end of the experiment, pigs were fasted for twelve hours and weighed to determine the final weight. The pigs were then slaughtered, and carcass samples were collected and analysed. The growth performance of pigs was not affected by diet, irrespective of fibre levels in the AOC silage. However, the addition of 3% AOC silage improved the digestibility of fibre fractions. The weights of the cold carcass, chops, and backfat thickness were reduced with AOC silage addition.

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Performance, Carcass and Relative Organ Weights of Young Boars Fed Graded Dietary Levels of Raw Icacinia manni (Earth Ball)

Journal of Agricultural Research and Development ◽

10.4314/jard.v19i1.3 ◽

2021 ◽

Vol 19 (1) ◽

Author(s):

J.S Ekpo ◽

I.M Sam ◽

U.M Okon

Keyword(s):

Growth Performance ◽

Carcass Characteristics ◽

Conversion Ratio ◽

Feed Conversion ◽

Large White ◽

Randomized Design ◽

Completely Randomized Design ◽

Dressing Percentage ◽

Young Boars ◽

Dietary Treatments

A study conducted for a period of fifty (50) days to determine the growth performance, carcass and organ weight of growing boars fed graded dietary levels of raw Icacinia manni tuber meal. Four experimental diets were formulated with Icacinia manni (Earth ball) replacing maize at 0, 5, 10 and 15% levels designated as T1(control), T2, T3 and T4, respectively. Forty-eight (48) young boars (Landrace x Large white) each weighed 7.72+ 0.35kg were assigned to the four dietary treatments and replicated three times of four boars each in a completely randomized design. Carcass traits and relative organs weights were evaluated. These traits were; dressed weight, dressing percentage, head, shank, trotter, belly, thick rib chop, rib chop, loin, chump chop, leg fillet end, Leg shank end, liver, lungs, kidney spleen and heart. The results indicated that apart from T4, diets T1, T2 and T3 did not differ significantly (P>0.05) in terms of feed intake, weight gain and feed conversion ratio. This implies that Icacinia manni did not affect growth performance except at 15% level of inclusion Similarly, Pigs fed diets T2 and T3 showed significant (P<0.05) increase in dressed weight, dressing percentage as well as certain primal cuts such as breast, rib chop, loin and chump chop. However, relative organs weight did not differ (P>0.05) across dietary treatments except the lungs in T4 (15%) signifying the non-deleterious effect of raw icacinia manni, at 10%. To attain optimum performance and carcass characteristics in young boars therefore, inclusion of raw Icacinia manni in young boars’ diet at 10 percent is recommended.

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