scholarly journals Dietary lysine and threonine utilization by young pigs: Efficiency for carcass growth

1995 ◽  
Vol 75 (3) ◽  
pp. 445-452 ◽  
Author(s):  
Olayiwola Adeola

Two experiments were conducted to determine the efficiency of dietary lysine and threonine retention for carcass protein accretion in pigs within a body weight range of 10–20 kg. At the beginning of the experiments, an initial representative group of 6 pigs were killed for carcass compositional analysis. In the first experiment, conducted to determine the efficiency of dietary lysine retention, a basal diet was formulated to contain 6 g of lysine kg−1. Twelve pigs were fed the basal diet supplemented with L-lysine∙HCl to contain 6, 7, or 8 g of lysine kg−1. Daily weight gain and gain:feed ratio were higher (P < 0.05) for pigs fed 8 g of lysine than for pigs fed 6 g of lysine kg−1 diet. The accretion rates of dry matter, protein, ash, and lysine in the carcass were higher for pigs fed 8 g of lysine than for pigs fed 6 g of lysine kg−1 diet. A linear regression of daily carcass lysine accretion on daily lysine intake resulted in a 72% efficiency of carcass lysine accretion above maintenance. In the second experiment, three diets including a basal diet formulated to contain 4 g of threonine kg−1 and supplemented with L-threonine to contain 4, 4.65, or 5.3 g of threonine kg−1 were fed to 12 pigs. Rate and efficiency of body weight gain exhibited a dose-response improvement (P < 0.05) to an increase in dietary threonine. Carcass protein, ash, and threonine accretion rates were higher (P < 0.05) for pigs fed 5.3 g of threonine than those fed 4 g of threonine kg−1 diet. Linear regression of daily carcass threonine accretion on daily threonine intake resulted in extra-maintenance efficiency of threonine retention of 60%. The efficiencies of dietary lysine and threonine utilization for carcass growth in pigs within the liveweight range of 10–20 kg are 72 and 60%, respectively. Key words: Lysine, threonine, retention efficiency, amino acids, pigs

2019 ◽  
Vol 5 (1) ◽  
pp. 20-30
Author(s):  
Anwar Seid Hassen ◽  
Mohammed Yasin Ali

The experiment was conducted to evaluate the effect of supplementing different levels of molasses and concentrates mix with a basal diet of cultivated pasture hay on intake, body weight and carcass quality of Afar sheep. Twenty four yearling Afar sheep, grouped in to four groups of six animals each in a randomized complete block design. The experiment consisted of four months feeding trial each group will receive the experimental feeds. Treatments were mixed concentrate + 20% inclusion molasses (T1), mixed concentrate + 15% inclusion molasses (T2), mixed concentrate + 10% inclusion molasses (T3) and 0% inclusion (T4). In this experiment with mean initial weight of 15.9±0.39 kg (mean ± SD), 16.2 ±0.41 kg, 16.3±0.42k.g and 16.1kg±0.42 respectively, were used in each treatment group. The experiment was consisted of 90 days of feeding trial followed by carcass evaluation. The concentrate mix were 2:1 (wheat bran and cotton seed cake) The CP content of the panicum antidotale hay, concentrate mix and molasses were 95g/kg DM, 252g/kg DM, and 38.4g/kg, respectively. Hay DM intake was did not differ (P<0.05) among all treatments. Average daily weight gain (ADG) was higher (P<0.05) for T2 (69.59g/kg) compared to other treatments. Hot carcass weight also higher (P<0.05) for T2 (14.41kg). Weight gains 12.31kg, 13.83kg, 11.25kg and 10.26kg for Tx1, Tx2, Tx3 and Tx4, respectively). All Carcass parameters gave advantage (P<0.01) to Tx2. From the present study, it can be concluded that Tx2 sheep performed better than Tx1, Tx3, and Tx4 in terms of body weight gain, Feed intake, and carcass parameters. Asian J. Med. Biol. Res. March 2019, 5(1): 23-30


2017 ◽  
Vol 5 (2) ◽  
pp. 74
Author(s):  
M. I. Okoruwa ◽  
D. O. Okunlola

This study was conducted to determine performance, carcass traits and meat quality evaluation of sheep fed napier grass and different proportion of cocoa pod husk and soursop pulp meals. Eighteen (18) West African Dwarf rams, aged between 7 and 8 months old with mean weight of 7.00 ± 0.55kg were allotted to three dietary treatments with two replicates of three sheep per treatment in a completely randomized design. The compared treatment diets were; TA (70% napier grass and 30% concentrate diet), TB (45% cocoa pod husk with 25% soursop pulp and 30% concentrate diet) and TC (50% cocoa pod husk with 20% soursop pulp and 30% concentrate diet). The experimental diets were given to the sheep at 6% of their body weight and the experiment lasted for 84days after 14days of adjustment period. The results showed that average daily feed intake (221.79g), nitrogen intake (18.02g/day), total nitrogen loss (5.08g/day) and chilling losses (12.85%) were significantly (P < 0.05) higher in diet TA compared with diets TB and TC. Treatment diet TC was significantly (P < 0.05) better in total body weight gain (3.66kg), average daily weight gain (43.57g), total digestible nutrient (74.69%), nitrogen retention (77.58%, slaughter weight (11.02kg), hot carcass weight (5.68kg), cold carcass yields (5.23kg), hot with cold carcass yields (51.54 and 47.46%), appearance (6.81), tenderness (6.20) and overall acceptability (6.85) than other treatment diets. Initial body weight, flavor and juiciness were not significantly (P > 0.05) affected by the treatment diets. It was concluded that 50% cocoa pod husk with 20% soursop pulp and 30% concentrate diet has the potential to enhance performance, carcass traits and meat quality evaluation in sheep.


2020 ◽  
Vol 16 (1) ◽  
Author(s):  
Abdallah E. Metwally ◽  
Ahmed A. A. Abdel-Wareth ◽  
Ahmed A. Saleh ◽  
Shimaa A. Amer

Abstract Background The aim of this study is to investigate whether the energy matrix values of the nonstarch polysaccharide- (NSP-) degrading enzymes, bioemulsifier (LYSOFORTE®), guanidinoacetic acid (CreAMINO®), or their combinations could be summed. The effects of these additives on the growth performance, carcass traits, and economic value of the broiler chicken diets were evaluated. A total of 525-one-day-old Ross chicks with an initial body weight of 42.96 ± 0.87 g were haphazardly allocated into seven groups with five replicates. The seven experimental treatments are as follows: (1) basal diet with no additives (breeder recommendation), which is the control group, (2) basal diet minus 100 kcal/kg supplemented with 0.02% NSP-degrading enzymes (NSP), (3) basal diet minus 50 kcal/kg supplemented with 0.025% emulsifier (LYSOFORTE®), (4) basal diet minus 50 kcal/kg supplemented with 0.06% guanidinoacetic acid (CreAMINO®), (5) basal diet minus 150 kcal/kg supplemented with a mixture of NSP and LYSOFORTE® (NSPL), (6) basal diet minus 100 kcal/kg supplemented with a mixture of NSP and CreAMINO® (NSPC), and (7) basal diet minus 200 kcal/kg supplemented with a mixture of NSP, LYSO, and CreAMINO® (NSPLC). The experiment lasted for 35 days. Results It was found that the final body weight, body weight gain, and relative growth rate were significantly higher in birds fed diets supplemented with NSPL, NSPC, CreAMINO, and LYSO with the reduced energy matrix value. The overall feed conversion ratio was significantly improved due to the supplementation of NSPC, CreAMINO, NSPL, and LYSO with the reduced energy matrix value compared to the control group. Moreover, no significant effect on the carcass criteria was observed by the different treatments. As a result of the dietary supplementation with NSPL, NSPC, CreAMINO®, and LYSO with the reduced energy matrix value, the net profit, total return, economic efficiency, and performance index were increased and the cost of feed per kg of body weight gain was decreased. Conclusion The energy matrix value of NSPL, NSPC, CreAMINO®, and LYSOFORTE could be established in the diets of broiler chickens to improve the growth performance and economic efficiency.


Author(s):  
G. Madhuri ◽  
B. Swathi ◽  
P. Radhakrishna ◽  
D. Nagalakshmi

The effect of replacing an antibiotic growth promoter in the diet with a probiotic on growth performance, carcass characteristics and nutrient retention was studied in broilers (Vencobb 430) fed with and without meat cum bone meal (MBM). This experiment which lasted for 42 days consisted of six dietary treatments viz., basal diet (BD), basal diet with MBM (MBM), basal diet with antibiotic (AB), basal diet with probiotic (PB), basal diet with MBM and antibiotic (MBM+AB) and basal diet with MBM and probiotic (MBM+PB). Three-hundred, day-old chicks were randomly allotted in the beginning to these six groups. Body weight gain, feed intake and feed conversion ratio were significantly (P less than 0.05) affected at 4th week of age. Overall, highest body weight gain was recorded in birds fed with AB and PB. Inclusion of probiotic in MBM also showed improved body weight gain when compared to MBM group. Highest feed intake and feed conversion ratio was recorded with AB and PB groups. Birds supplemented with MBM+PB showed improved feed intake and feed efficiency when compared to MBM+AB and MBM diet supplemented groups. Higher dry matter, crude protein, calcium and phosphorus retention (P less than 0.05) was observed in birds supplemented with PB or AB in diet without MBM when compared to their control. In MBM supplemented groups addition of PB or AB improved crude protein retention. Birds supplemented with PB or AB with or without MBM showed a significant (P less than 0.05) increase in thigh yield and a non significant reduction in fat yield when compared to their control groups.


2018 ◽  
Vol 6 (1) ◽  
Author(s):  
Mustapa Zahri Ritonga ◽  
Hasnudi ◽  
Iskandar Sembiring ◽  
Tri Hesti Wahyuni ◽  
Nevy Diana Hanafi

This study aims to determine the effect of fermented sago pulp in rations on performance (weight gain, feed consumption, feed conversion) and local sheep's income over feed cost (IOFC). This research was carried out in the community farms of Karang Rejo Village, Stabat District, Langkat Regency. This research started from March to June 2017. The design used was complete randomized design (RAL), with 4 treatment of 5 replications. Each replication consisted of 1 local sheep with an initial weight of 11.05 ± 0.56 kg. The treatment consisted of P1 (50% sago pulp without fermentation + forage), P2 (60% of sago pitch without fermentation + forage), P3 (50% fermented sago pulp + forage), and P4 (60% fermented sago pulp +). The observed variables were performance (body weight gain, feed consumption, feed conversion) and income over feed cost (IOFC). The results showed that the treatment of fermented sago pulp gave a very real effect (P <0.01) on daily weight gain. The mean of P1 = 33,05 g, P2 = 39,95 g, P3 = 46,57 g, P4 = 54,38g. The consumption of fermented sago pulp treatment has a real effect (P <0,01). With average P1 = 486,38 g, P2 = 548,68 g, P3 = 604,69 g, P4 = 671,11 gr. Against the conversion of fermented sago pulp fermentation treatment gave a real effect (P <0.05). With average P1 = 14.78, P2 = 13.90, P3 = 12.99, P4 = 12,49. IOFC the highest local sheep is Rp. 121.568 on treatment of P4 and IOFC lowest at treatment P1 equal to Rp.73.315. The conclusion of the research shows that the utilization of fermented sago pulp can increase body weight gain, feed consumption, local sheep feed conversion. P4 treatment economically has a better economic level than P1,P2 and P3.


2012 ◽  
Vol 28 (3) ◽  
pp. 441-453
Author(s):  
M. Sahraei ◽  
H. Janmmohamadi ◽  
A. Taghizadeh ◽  
Ali Moghadam ◽  
S.A. Rafat

An experiment was conducted with 312 day-old male broiler chicks in grower phase(8-28d) to estimate the biological availability of four sources Zinc (Zn), Zinc sulfate(ZnSO4.H2O), two sources of Zinc oxide(ZnO FG1 and ZnO FG2) and Bioplex Zn. Zinc sulfate (ZnSO4.H2O) was used as the standard in the bioavailability assay. Chicks were allotted randomly to 13 dietary treatments with 6 birds per replicate and 4 replicates per treatment, that included an unsupplemented corn-soybean meal basal diet (25.50 mg of Zn/kg of DM), or the basal diet supplemented with 100, 150 or 200 mg/kg of DM as either ZnSO4.H2O (33 % Zn), Zinc oxide FG1(72%Zn), Zinc oxide FG2 (75%Zn) or Bioplex Zn (15% Zn). Dietary Zn level and source had no effect (P>0.05) of feed intake or body weight gain of chicks during first and second weeks of experimental periods, but feed conversion ratio in the first and second week and feed intake, body weight gain or feed conversion ratio in third week and total experimental periods were significant difference between treatments (P<0.05). The relative biological availability values using body weight gain were estimated to be 59, 99 or 45 for three levels of Zinc oxide FG1, 64, 78 or 31 for three levels of Zinc oxide FG2 and 151, 200 or 147 for three levels of Bioplex Zn, respectively. From the standpoint of bioavailability, Bioplex Zn was more available to broiler chicks than Zn from other sources and can be used by the feed industry as sources of supplemental Zn for broiler chickens.


2019 ◽  
Vol 48 (1) ◽  
pp. 1-8
Author(s):  
M Moniruzzaman ◽  
MBR Mollah

Microbial protein often called as single cell proteins (SCP) are becoming a potential alternative to conventional protein rich ingredients in poultry diet. An experiment was conducted to know the possibility of using Saccharomyces cerevisiae derived SCP in broiler diet. A total of 96 male Ross-308 day old chicks were assigned to four diet comprising control (0% replacement), 25% replacement, 50% replacement and 100% replacement of protein concentrate with autolyzed S. cerevisiae. Each group had 6 replicates of 4 chicks in each. Body weight, body weight gain, daily weight gain, feed intake and feed conversion ratio were not affected (P>0.05) in case of 25% and 50% replacements. However, 100% replacement had resulted numerically negative effect as compared to control group. Dressing percentage and other carcass characteristics were not affected (P>0.05) in the replacement groups. The results of this study indicated that autolyzed S. cerevisiae might be used to replace protein concentrate at 25% to 50% level in broiler diet without affecting growth and carcass quality. Bang. J. Anim. Sci. 2019. 48 (1): 1-8


Animals ◽  
2020 ◽  
Vol 10 (6) ◽  
pp. 1084 ◽  
Author(s):  
Anna Zmudzińska ◽  
Bartosz Bigorowski ◽  
Mirosław Banaszak ◽  
Aleksandra Roślewska ◽  
Marek Adamski ◽  
...  

The aim of this work was to assess the impact of a total dietary replacement of extracted soybean meal (SBM) on body weight gain and pork quality. DanBred hybrid piglets were divided into four groups of 10 piglets each. Groups I (males) and II (females) were the control groups and fed a standardized SBM-based complete feed. The experimental groups III (males) and IV (females) were offered a diet in which the SBM was replaced with extracted rapeseed meal (RSM) and legume plants (pea and yellow lupin). After 83 days of fattening, the animals were slaughtered. Based on the collected data, the daily weight gain (DWG), feed intake (FI), and feed conversion ratio (FCR) were calculated. In addition, longissimus dorsi muscle was subjected to physicochemical analyses, including the basic chemical composition. All the analyses were performed in accordance with the applicable methodologies. As a result of this experiment, no interactions were found between the experimental factors (sex and diet). The replacement of SMB by legumes and RSM resulted in a significant reduction in the final body weight of growing–finishing pigs. Additionally, daily body weight gain was reduced between 35–83 days, and through the whole fattening period (0–83 days). Most pork meat quality parameters were not affected by the type of mix feed and sex (p > 0.05). The fattening pigs that were fed legume seeds and RSM had significantly reduced fatness (p > 0.05) compared to the control pigs. In males, there was also a significantly lower pH45 (p < 0.05). It can be concluded that feeding pigs with diets containing legume plants and extracted rapeseed meal does not affect the pork meat quality, but it may worsen the body weight gain.


2020 ◽  
Vol 5 (6) ◽  
pp. 184-190
Author(s):  
M Kokeb ◽  
◽  
Y Mekonnen ◽  
M Tefera ◽  
◽  
...  

The aim of this experiment was to evaluate the effect of graded level of local brewery by-product (atella) replacement to concentrate mixture on feed intake; digestibility and bodyweight change of Dorper-Menz crossbred lambs fed hay basal diet. The feeding period of 90 days was preceded by 15 days of acclimatization period. The experimental design was randomized complete block design with five treatments: T1 [control, hay ad libtium], T2 [25% atella + 75% concentrate mix]; T3 [50% atella + 50% concentrate mix]; T4 [75% atella + 25% concentrate mix] and T5 [100% atella]. Body weight changes were monitored fortnightly for 112 days. At the end of experiment, animals were fitted with feces collection bags and daily feces excretion was collected for seven days. Fecal output of each animal was thoroughly mixed and 20% of the voided feces were sampled to make a composite of fecal samples for each animal over the collection period. The fecal samples were stored frozen at -20°C until processing for chemical analysis. Data on feed intake, body weight change, and digestibility were subjected to analysis of variance using the General Linear Model procedure. The protein and energy contents of atella are high enough to increase intake, digestibility and could be categorized as medium protein feed. Atella alone or at different level with commercial concentrate mixture has significantly increased body weight gain of crossbred sheep. The positive weight gain results of atella supplemented group clearly indicate supplementation of dried atella could be recommended for fattening Dorper-Menz crossbred male lamb. Atella may lose some volatile nutrients during drying process and further research is needed to compare wet atella with dried one.


2016 ◽  
Vol 41 (4) ◽  
pp. 209
Author(s):  
E. Winarti ◽  
A. Widyastuti

The objective of study was to determine the effect of calf starter in the pre-weaning calves against the daily body weight gain. Twenty Ongole grade (PO) calves age of 1 month divided into 4 treatment groups of feed, 5 calves for each treatment. Treatment (P1) fed with extra soybean groats; (P2) soybean groats 50% + Gliricidia 50%; (P3) soybean groats 50%+ rice bran 50%; (P4) soybean groats 50%+ rejected bread 50%. Calf starter was given at age 1 month to 3 months. Observation was carried out on calves daily weight gain. This experiment was designed in Completely Randomized Design. Data was  analyzed by analysis of variance and continued Least Significant Difference Test. Statistical analysis showed that feed of (P <0.05) significantly affected the daily weight gain of the calves. Results of the study can be concluded that calf starter with soya groats provide the best daily weight gain of pre-weaning calf.


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