scholarly journals 172 Effects of net energy levels on feed intake pattern and growth performance of growing-finishing gilts monitored using a computerized feed intake recording system

2019 ◽  
Vol 97 (Supplement_3) ◽  
pp. 175-176
Author(s):  
Zhikai Zeng ◽  
YaKuan Huang ◽  
Liqiang Zhu ◽  
Zhiyuan Chen ◽  
Z J Yuan ◽  
...  

Abstract This study evaluated the effects of dietary net energy concentrations on feeding behavior and growth performance of growing-finishing pigs monitored using a feed intake recording equipment (FIRE). Two hundred and sixteen (48.8 ± 5.6 kg) gilts were blocked by bodyweight and assigned randomly to 1 of 3 dietary treatments, which included low (2,350 kcal/kg), medium (2,450 kcal/kg), and high (2,550 kcal/kg) dietary NE levels. Pigs were housed in 18 pens for 68 d in four phases with 12 pigs and one FIRE station per pen. Bodyweight, feed consumption, and the amount of time and visit at the station of individual pigs were monitored every day by using FIRE. Pigs fed low NE diet spent more time (min) at the station during the first two weeks and visited the station more times with fewer amounts of time (min) per visit after two weeks compared with pigs fed medium and high levels of NE diets (P < 0.05). The speed (g/min) and amount (g/visit) of feed intake were lower (P < 0.05) during phase 3 and the overall period in low NE diet compared with pigs fed medium NE diet. Pigs fed medium NE diet tended to have a greater (P = 0.066) average daily feed intake at phase 4 than pigs fed low NE diet. Increasing NE levels linearly improved (P < 0.05) average daily gain, feed conversion ratio, and final BW during phase 3 and the overall period. However, the overall energy efficiency (Mcal NE/ kg gain) was linearly decreased with increasing NE levels. In conclusion, decreasing dietary NE to 2350 Mcal/kg resulted in more visits to feeders with slow ingestion speed compared with pigs fed diets with 2450 or 2550 Mcal/kg NE. Increasing dietary NE levels linearly improved daily gain and feed conversion ratio, but linearly decreased energy efficiency.

Author(s):  
Xin Jian Lei ◽  
Jun Bae ◽  
Ju Lee ◽  
Sang Lee ◽  
In Kim

The objective of the study was to evaluate the effects of expanded diets on growth performance, meat quality, and carcass characteristics in finishing pigs. A total of 80 finishing pigs [(Landrace × Yorkshire) × Duroc] were randomly allotted to two dietary treatments: 1) unexpanded corn-soybean meal diets; 2) expanded corn-soybean meal diets. Each treatment consisted of ten replicate pens with four pigs (2 gilts and 2 barrows) per pen. There were no differences in daily feed intake and daily gain throughout the experiment (P less than 0.05). However, expanded diets decreased feed conversion ratio compared with unexpanded diets (P less than 0.05). Expanded diets had no effect on carcass characteristics and meat quality with the exception of increased sensory evaluation (color) of meat compared with unexpanded diets (P less than 0.05). In conclusion, expanded diets can improve feed conversion ratio but have no effect on daily gain and daily feed intake and sensory evaluation of meat color.


2020 ◽  
Vol 23 (1) ◽  
pp. 44-54
Author(s):  
Nadezhda Palova ◽  
Jivko Nakev ◽  
Teodora Popova ◽  
Maya Ignatova

Abstract(An experiment with two groups of East Balkan pigs – castrated males (n=10) and females (n=10), was carried out to study the growth performance and fattening abilities of the animals from the weaning until slaughter. The pigs were included in the trial at 60 day age. The average live weight of the castrated males was 8. 65±1.08 kg and for the females, 8.5±0.62 kg.The pigs were reared using traditional technology, grazing on natural pastures in the Strandzha mountain, Bulgaria. In autumn, acorns were naturally present in their diet. According to the category, the animals additionally received ground organic feed (50% barley and 50% wheat). The trial lasted 304 days (from February to November, 2019). During this period the final live weight of the male castrated pigs reached 88.00 kg while that of the females was 84.4 kg. The difference, however, was not significant. Furthermore, no significant differences in the growth performance characteristics that could be attributed to the sex of the animals were observed. The average daily gain of both sexes tended to be lower in summer and higher in autumn. The feed conversion ratio was higher in summer. The animals showed high average daily weight gain at pasture when their live weight was over 50 kg.


ZOOTEC ◽  
2016 ◽  
Vol 37 (1) ◽  
pp. 8
Author(s):  
Claudia Mangelep ◽  
F. R. Wolayan ◽  
M. R. Imbar ◽  
I. M. Untu

THE EFFECT OF PARTLY SUBSTITUTION OF DIET WITH WHITE CHINESE CABBAGE (Brasscia pekinensia L) WASTE PRODUCT ON BIOLOGICAL PERFORMANCE OF BROILER CHICKEN The present study was conducted to characterize the effect of white Chinese cabbage (Brasscia pekinensia L) waste product as an alternative feed source for broiler chicken.  The experiment was conducted at Faculty of Animal Husbandry’s experimetal station for 21 days using 60 MB-202 broiler chicken. The experiment was started at 21 days of age and terminated at 42 days of age. Birds were allocated to 20 experimental battery cage, 3 birds in each cage. Completely Randomized Design (CRD) with 5 treatments and 4 replications was employed to analyze experimental data. Treatment diets were formulated as follow: R0 = 100% basal diet and 0% white Chinese cabbage waste product; R1 = 95% basal diet and 5% white Chinese cabbage waste product; R2 = 90% basal diet and 10% white Chinese cabbage waste product; R3 = 85% basal diet and 15% white Chinese cabbage waste product; and R4 = 80% basal diet and 20% white Chinese cabbage waste product. Parameters measured were: 1) daily feed consumption; 2) daily gain; and 3) feed conversion ratio (FCR). The results of the study during which feed consumption (138,09-141,57g), weight gain (64,95-68,53g), and feed conversion (2,07-2,12). The results showed that partly substitution (up to 20%) of basal diet with white Chinese cabbage waste product gave non significant (P > 0.05) effect on feed consumption, daily gain, and feed conversion ratio (FCR) of broiler chicken. It can be concluded that white Chinese cabbage waste product can be used up to 20% feed gives good results on broiler performance. Key Words: Substitution, white Chinese cabbage waste product, broiler performance


2017 ◽  
Vol 5 (1) ◽  
pp. 1
Author(s):  
Eka Handayanta

<p class="Style2"><em>The aim of this research to determine the effect of supplementation of tofu. </em><em>tempe, and soy sauce waste in ration on male local sheep performance. This </em><em>research was carried out during three month, take place on July until October </em><em>200E in Minifarm Dept. of Animal Science, Agriculture Faculty of Sebelas Maret </em><em>University, located in Jatikuwung. Gondangrejo, Karanganyar. It used </em><em>12 </em><em>male </em><em>local sheeps with average body weight of </em><em>15.86 ±0.93 </em><em>kg, divided into four treatments and three replications, each replication consist of one sheep.</em><em> </em><em>The ration consisted of king grass only as basal diet, </em><em>as many as four percent </em><em>base on body weight. The treatment given is in the form of feed supplement, that </em><em>namely without supplement </em><em>(RO), </em><em>250 </em><em>gram tofu waste (R1), </em><em>250 </em><em>gram tempe </em><em>waste </em><em>(R2), and </em><em>250 </em><em>gram soy sauce waste </em><em>(R3). </em><em>The data variables collected </em><em>were </em><em>feed consumption, dry and organic matter digestibility, crude protein </em><em>consumption, energy consumption, average daily gain, and feed conversion ratio. </em><em>All of data except average daily gain was analyzed by completely randomized </em><em>design one way classification. While average daily gain was analyzed by </em><em>covariance analyze. The result were significant followed by Duncan new multiple </em><em>range test.</em><em> </em><em>The result showed that average of </em><em>R0, RI, </em><em>R2 and </em><em>R3 </em><em>for feed consumption </em><em>430.52; 720.44; 704.44; 549.08 </em><em>gram/day, dry matter digestibility (%) </em><em>61,07; 72,46; 69,68: 63,60, organic matter digestibility (%) </em><em>64,41: 74,94; 72.41; 64,7 1, </em><em>crude protein consumption 47.66; 106.77; 85.83; 73.70 gram/day, energy consumption </em><em>281.82; 482.65; 432.67; 330.83 </em><em>gram/day, average daily gain </em><em>50.00.</em><em><sup>­</sup></em><em>1X00: 116.19; 38.10 </em><em>gram/day and feed conversion ratio </em><em>8.74; 5.61; 6.06; 15.2. </em><em>The result of variance analyze showed that feed supplementation have highly </em><em>significant effect (P&lt;0.01) on all of the data variable colected. Conclusion of this </em><em>research was supplementation of tofu waste and tempe waste could improved </em><em>performance, while soy sauce waste could not improved the performance of male </em><em>local sheep.</em></p><p><em> </em></p><em>Key words : sheep, tofu waste, tempe waste, soy sauce waste, performance</em>


2020 ◽  
Vol 4 (2) ◽  
pp. 655-665
Author(s):  
Samuel J Hawe ◽  
Nigel Scollan ◽  
Alan Gordon ◽  
Elizabeth Magowan

Abstract Improved genetics in commercial pig production have resulted in larger litter sizes. However this has increased the prevalence of compromised pigs exhibiting inferior birthweights, weaning weights, and lifetime performance. This study aimed to determine the effects of increased sow lactation feed intake on growth of low and average birthweight piglets until 10 wk of age. Low (Low BW; &lt;1 kg) and average (Av BW; 1.3–1.7 kg) birthweight animals were reared in uniformly weighted litters comprising 14 piglets on a foster mother offered either a low (Low FA; max 7.5 kg/d) or high (High FA; max 11 kg/d) feed allowance over a 28- ± 1-d lactation. Piglet performance was monitored from birth until 10 wk of age. Sows offered a High FA consumed 42.4 kg more feed on average than those offered Low FA, resulting in a greater derived milk yield (P &lt; 0.05). Animals of Av BW remained heavier than Low BW pigs throughout the trial (P &lt; 0.05). Piglets reared by High FA sows were heavier at weeks 3, 4, 5, and 7 (P &lt; 0.05) but not week 10 (P &gt; 0.05). Growth rate of piglets relative to their birthweight was significantly greater for Low BW piglets than those of Av BW during lactation (P &lt; 0.001). Piglets reared by sows offered a High FA expressed greater relative growth preweaning (P &lt; 0.05); however, postweaning relative growth for piglets reared on sows offered a Low FA was greater (P &lt; 0.05) suggesting compensatory growth. Neither birthweight nor sow feed allowance significantly affected preweaning mortality (P &gt; 0.05). However, Low BW animals on sows with a High FA recorded half the preweaning mortality of Low BW pigs on sows with a Low FA. During week 1 of lactation, Av BW litters recorded a greater total suckling duration compared to Low BW litters (P &lt; 0.05) but there was no difference in suckling frequency (P &gt; 0.05). During week 3 of lactation, High FA litters displayed a significantly lower suckling frequency (P &lt; 0.05) yet a greater total suckling duration (P &lt; 0.001). Average daily gain was greater for Av BW pigs during weeks 4–7 (P &lt; 0.001) but no difference was recorded between weeks 7 and 10 (P &gt; 0.05). Average daily feed intake was greater for Av BW pigs throughout the nursery period (P &lt; 0.05) but feed–conversion ratio did not differ compared to Low BW pens (P&gt;0.05). In conclusion, offering sows a High FA increased weaning weight of all animals; however, birthweight was the major determinant of postweaning performance.


Author(s):  
Lemma Gulilat ◽  
Firew Tegegne ◽  
Solomon Demeke

The objective of this study was to develop the least-cost starter&rsquo;s diet and evaluated its effect on the growth performance of Sasso breeds and Indigenous ecotype of chicks under the local condition of the South Gondar Zone. The effects of substitution of different levels of commercial starters ration with homemade diet on the growth performance of Sasso and Indigenous chicks were studied in Hiruy Abaregay village of Farta district. The research area is 586km distant from the capital city of Addis Ababa, Ethiopia. A total of 510 Sasso T-44 and 90 Indigenous local ecotypes day-old chicks were randomly divided into five groups, each with 102 and 18 chicks, respectively. These were assigned into five treatments in which 100 (T1), 75 (T2), 50 (T3), 25 (T4), and 0% (T5) of commercial starter&rsquo;s diet in factorial completely randomized design (CRD) with 3 replications for 60 days feeding period. The results obtained indicated that increased levels of substitution of a commercial diet with a homemade diet significantly depressed (p&lt;0.001) mean daily feed consumption and retention of dry matter, nitrogen, and metabolizable energy. Growth rate as measured by mean daily weight gain, mean final body weight, and total feed consumption and feed cost were significantly miserable (p&lt;0.001) in an increased homemade diet. On the contrary, there was an increase in feed conversion ratio and fiber content in high-level dilution of starter&rsquo;s commercial diet with a homemade diet. However, the groups of chicks on 0, 25, and 50% commercial starters diets replaced by homemade diet were significantly higher (p&lt;0.001) in mean daily feed intake, daily weight gain, feed conversion ratio, and final body weight attained. The results of this study indicated that up to 50% of expensive commercial starter&rsquo;s diet could economically be replaced with the least cost homemade diet without adversely affecting the growth performance of chicks.


2020 ◽  
Vol 44 (1) ◽  
pp. 245-253
Author(s):  
M. A. Oguntoye ◽  
O. M. O. Idowu

This study was conducted to investigate the effect of dietary copper and probiotic supplementation on growth performance and carcass characteristics of broiler Chickens. A total of 180-day old marshal broiler chicks of mixed sex were randomly allotted to six treatment groups of 30 birds each. The Treatments were divided into three replicates of ten birds each; starter and finisher diets were formulated and fed for a period of fifty-six days. The dietary treatments were subjected to completely randomized design experimental layout which was made up of probiotic (0 and 500ppm) and copper (0, 125 and 250mg).The chicks were fed the broiler starter diet for the first 28 days and broiler finisher for the last 28 days. Treatment effect on broiler body weight, feed intake and feed conversion ratio were determined on a weekly basis. Data obtained were analyzed using analysis of variance (ANOVA) and, Duncan's Multiple Range Test was used to separate significant means. Dietary supplementation of copper and probiotic had no significant (P> 0.05) effect on final weight (FW), daily weight gain (DWG), feed intake (FI), and feed conversion ratio (FCR) at the starter phase of the experiment. However, at finisher phase, inclusion of probiotic resulted in higher significant (P < 0.05) values for FW (2214.12g/b) DWG (60.22g/b/d), FI (159.02g/b/d), and FCR (2.64). The carcass yields of the broilers were significantly (P< 0.05) influenced by copper and probiotic supplementations. However, lower value (1.07%) was obtained for abdominal fat in broilers fed 250mg Cu/kg supplemented diet. The study concluded that supplementation of copper and probiotics resulted in improved growth performance and carcass yield of broiler chickens.


ZOOTEC ◽  
2016 ◽  
Vol 37 (1) ◽  
pp. 149
Author(s):  
Sumarni Wuysang ◽  
C. A. Rahasia ◽  
J. F. Umboh ◽  
Y. L. R. Tulung

UTILIZATION EFFECT OF MOLASSES AS ENERGY SOURCE IN THE DIETS ON GROWING RABBIT PERFORMANCE. Molasses had been used previously in animal feeds. The present study was conducted to determine the effect of molasses utilization in the diets on growing rabbits. The study was conducted during five weeks at Department of Animal and Feed Science Laboratory, Faculty of Animal Husbandry, University of Sam Ratulangi, Manado. Twenty eight-weeks weaned female rabbits with an initial body weight of 600 -700 gr were used in this trial. Animals were allocated in an individual cage. A Completely Randomized Design (CRD) with 4 treatments and 5 replications was used for analysis of variance. Treatments were formulated as follow: R0 = 100% basal diet + 0% molasses; R1 = 98% basal diet + 2% molasses; R2 = 96% basal diet + 4% molasses; and R3 = 94% basal diet + 6% molasses. Variables measured were daily feed consumption, water consumption, daily gain, and feed conversion. Research results showed that average daily feed consumption in the present study ranged from 58.1 to 60.4 g; daily water consumption from 127.2 to 163.8 liters; daily gain from 20.1 to 20.9 g; and feed conversion ratio of about 3.57 to 3.80. Statistical analysis revealed that utilization of molasses replacing part of basal diets up to 6% gave no significant differences on daily feed consumption, water consumption, daily gain, and feed conversion ratio.  It can be concluded that molasses as an energy source can be utilized up to 6% in growing rabbit diets without any negative effects. Keywords: Molasses, diets, growing rabbits performance


2021 ◽  
Vol 43 (2) ◽  
pp. 254-262
Author(s):  
A.O. Aniebo

The effect of dietary treatments on growth performance, haematological and biochemical indices of finisher broilers as well as economics of broiler production were determined in this experiment. Four broiler finisher diets were formulated with different inclusion levels of fermented cassava flour/blood mixture code-named “cassablood”. The control diet (T1) contained 0% cassablood, while diets 2, 3 and 4 contained 20%, 25% and 30%  cassablood respectively. 120 four weeks old Anak broiler chicken were randomly allocated the 4 diets with 30 birds per treatment replicated 3 times with ten 10 broilers per replicate in a completely randomized design (CRD).Treatment effects on final body weight, final weight gain, feed intake and feed conversion ratio were significant (P<0.05). Birds fed cassabloodbased diets compared favourably with the control diet. 20% cassablood inclusion performed equally with the control diet in feed intake, body weight gain and feed conversion ratio. All dietary groups also showed no significant differences (P>0.05) in most haematological and serum biochemical indices of broilers except in cholesterol, glucose and triglyceride contents which differed (P<0.05) significantly Similarly, chicken on 20% and 25% inclusion levels produced significantly (P < 0.05) higher economic gains in terms of feed cost per kilogram of broiler among all the treatments. Therefore, 20 - 25% cassablood dietary inclusion level was recommended in broiler diet for production and profit maximization.


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