The effect of virginiamycin on sow and litter performance

AbstractThe present paper discusses the results of a trial study, which was carried out to demonstrate the potential beneficial effects of virginiamycin (VM) on sow and litter performance. VM was added to the sow food at the levels of 0, 20 and 40 mg/kg, for a period of two breeding cycles, covering pregnancy and lactation. VM supplementation of the sow food improved sow performance by: (i) decreasing sow weight loss from farrowing to weaning (first period: 8·78 v. 3·54 v. 2·88 kg, P < 0·05; second period: 8·98 v. 3·93 v. 2·32 kg, P < 0·05), (ii) decreasing the duration of the reproductive cycle (first period: 154·5 v. 152·2 v. 151·2 days, P < 0·05; second period: 153·8 v. 151·5 v. 250·6 days, P < 0·05) and (in) increasing milk fat content (second period: 63·7 v. 81·3 v. 83·3 g/kg, P<0·05). Litter performance was also improved in terms of: (i) litter size at weaning (first period: 8·16 v. 8·88 v. 9·18, P < 0·05; second period: 8·98 v. 9·30 v. 9·76, P < 0·05), (ii) body weight at weaning (first period: 5·78 v. 6·29 v. 6·56 kg, P < 0·05; second period: 5·88 v. 6·38 v. 6·60 kg, P < 0·05), (Hi) average daily gain (first period: 172 v. 189 v. 197 g, P < 0·05; second period: 178 v. 292 v. 198 g, P < 0·05) and (iv) food conversion ratio (first period: 0·356 v. 0·331 v. 0·324, P < 0·05; second period: 0·363 v. 0·334 v. 0·325, P < 0·05). These beneficial effects of VM were more pronounced at the higher of the two inclusion levels.

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Effects in bacon pigs of differing levels of nutrition to 20 kg. body weight

Animal Science ◽

10.1017/s0003356100022091 ◽

1964 ◽

Vol 6 (3) ◽

pp. 301-308 ◽

Cited By ~ 20

Author(s):

Henning E. Nielsen

Keyword(s):

Body Weight ◽

Average Daily Gain ◽

Live Weight ◽

Conversion Ratio ◽

Feed Conversion Ratio ◽

Feed Conversion ◽

Eye Muscle ◽

Group 4 ◽

Second Period ◽

Daily Gain

Sixteen blocks of eight littermate pigs were weaned at 3 weeks of age and each divided into four groups. Various levels of nutrition were applied to the pigs so that the four groups reached 20 kg. at 59, 68, 80 and 91 days of age, respectively.Only small differences were observed between groups in feed conversion ratio to 20 kg.; however, Group 4 required more feed per kg. gain than the three other groups.During the second period (20–90 kg.) the pigs in each group were divided into two sub-groups, which were on a high and a low plane of nutrition respectively. In both sub-groups the type of feeding before 20 kg. influenced the average daily gain and feed conversion ratio. The older the pigs were at 20 kg. the higher the daily gain and the lower the feed conversion ratio in the following period. There was an increase in daily feed intake with increased age at 20 kg. for pigs fed ad lib. during the second period.An increase in age at 20 kg. caused a significant decrease in thickness of backfat, a greater area of eye muscle and a smaller area of fat overlying muscle. For pigs fed ad lib. the area of eye muscle was significantly increased by a higher age at 20 kg. live-weight.

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The interaction between cereal type and lactose level on piglet performance and diet digestibility post weaning

Animal Science ◽

10.1079/asc42030265 ◽

2005 ◽

Vol 81 (2) ◽

pp. 265-269 ◽

Cited By ~ 9

Author(s):

J. M. O'Connell ◽

J. J. Callan ◽

J. V. O'Doherty

Keyword(s):

Dry Matter ◽

Average Daily Gain ◽

Conversion Ratio ◽

Growth Promoter ◽

Food Conversion ◽

Weaned Piglets ◽

Gross Energy ◽

High Level ◽

Dietary Treatments ◽

Daily Gain

AbstractBoth barley and wheat contain anti-nutritive factors such as glucans and xylans respectively. However, β-glucans have been shown to promote lactic acid bacteria in the large intestine and this would be very beneficial in the absence of in-diet antimicrobial growth promoter. A 2 × 2 factorial was used to investigate the interaction between cereal type (wheatv. barley) and lactose inclusion (170v. 275 g/kg) on piglet performance post weaning. Two hundred and sixteen weaned piglets (24 days of age, 6·0 kg weight) were blocked on the basis of weight and were assigned to one of four dietary treatments. The treatments were as follows (T1) 170 g/kg lactose and wheat, (T2) 275 g/kg lactose and wheat, (T3) 170 g/kg lactose, wheat and 200 g/kg barley and (T4) 275 g/kg lactose, wheat and 200 g/kg barley. The diets were formulated to have identical concentrations of digestible energy (16 MJ/kg) and total lysine (16 g/kg). The pigs were offered the diets ad libitum for 33 days post weaning. There was a significant interaction (P< 0·05) between cereal source and lactose level in average daily gain (ADG). In wheat-based diets the inclusion of 275 gkg lactose resulted in a significant improvement in ADG, compared with the 170 g/kg lactose inclusion. However, in barley-based diets the inclusion of 275 g/kg lactose significantly (P< 0·05) reduced ADG. There was no significant effect of cereal type or lactose level on food intake or food conversion ratio (FCR). The inclusion of 275 g/kg lactose significantly reduced nitrogen digestibility (P< 0·01). In barley-based diets, the high level of lactose inclusion depressed digestibilities of dry matter (P< 0·01), organic matter (P< 0·05) and gross energy (P< 0·05) compared with low lactose inclusion. However, in wheat-based diets, lactose level had no significant effect. In conclusion, improvements in performance were achieved up to 275 g/kg lactose in wheat-based diets. However, in barley-based diets a dietary lactose level of 170 g/kg was adequate.

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The effect of various factors on the efficacy of tylosin as a growth promoter in clinically healthy pigs

Animal Science ◽

10.1017/s0003356100000581 ◽

1982 ◽

Vol 34 (2) ◽

pp. 115-121 ◽

Cited By ~ 4

Author(s):

P. W. Jones ◽

M. E. Tarrant

Keyword(s):

Food Consumption ◽

Average Daily Gain ◽

Field Trials ◽

Conversion Ratio ◽

Food Utilization ◽

Growth Promoter ◽

Food Conversion ◽

Initial Weight ◽

Daily Food ◽

Daily Gain

ABSTRACTNineteen field trials were conducted in eight 1 uropean countries to examine the effects of tylosin, administered in the food at a level of 20mg/kg to healthy pigs under good management conditions. Average daily gain and food conversion ratio were improved by 33 g and 0·17 respectively over untreated control animals, with no change in average daily food consumption. These improvements in growth performance were similar in the grower and finisher phases, and the response to tylosin was not affected by sex, initial weight or year. Absolute responses in average daily gain and efficiency of food utilization were constant, whatever the level of performance in the controls.

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Nucleotide Supplementation to Whole Milk Has Beneficial Effects on Post-Weaning Holstein Calf Performance

Animals ◽

10.3390/ani11010218 ◽

2021 ◽

Vol 11 (1) ◽

pp. 218

Author(s):

Yousef Abbaslou ◽

Davood Zahmatkesh ◽

Ehsan Mahjoubi ◽

Mehdi Hossein Yazdi ◽

Hamed Beiranvand ◽

...

Keyword(s):

Body Weight ◽

Average Daily Gain ◽

Free Access ◽

Treatment Groups ◽

Beneficial Effects ◽

Positive Effects ◽

Whole Milk ◽

Calf Performance ◽

Daily Gain ◽

Fecal Score

The positive effects of nucleotide (NU) supplementation in milk replacer have been elucidated in infants and in dairy calves; however, NU addition to whole milk has not been evaluated previously. This study aimed to assess NU supplementation in the whole milk on calf growth and health. Thirty Holstein calves (body weight: 39.1 ± 1.0 kg; 3 d after birth) were randomly assigned to the following treatments: whole milk without any supplementation (NU0), whole milk + 0.5 g/d added a NU-containing supplement to whole milk (NUCS0.5), and whole milk + 1 g/d added a NU-containing supplement to whole milk (NUCS1). Calves were weaned at d 55 and stayed on study until d 75. Calves had free access to feed and water throughout the study. Dry matter intakes (DMI) were similar among treatments (p > 0.05) during the pre-weaning period; however, increasing NU resulted in a linear (p < 0.05) increase in DMI during the post weaning period (2158, 2432, and 2518 g/d for NU0, NUCS0.5, and NUCS1, respectively). Treatments did not affect body weight (BW) at the first and second month of study, but final BW linearly increased as NU was added (87.1, 90.6, and 95.4 kg for NU0, NUCS0.5, and NUCS1, respectively). Neither pre-weaning average daily gain nor post-weaning average daily gain was affected by treatments; accordingly, feed efficiency was similar among treatment groups. Days with loose fecal score were linearly decreased as NU was added to whole milk during the first month of life, while the fecal score did not differ among treatments until the end of the study. No difference was observed in the skeletal growth of calves in the current study. Therefore, it can be concluded that NU supplementation in the whole milk has some beneficial effects on calf performance in terms of final BW, post-weaning DMI, and less days with loose feces.

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Live Yeast or Live Yeast Combined with Zinc Oxide Enhanced Growth Performance, Antioxidative Capacity, Immunoglobulins and Gut Health in Nursery Pigs

Animals ◽

10.3390/ani11061626 ◽

2021 ◽

Vol 11 (6) ◽

pp. 1626

Author(s):

Shenfei Long ◽

Tengfei He ◽

Sung Woo Kim ◽

Qinghui Shang ◽

Tadele Kiros ◽

...

Keyword(s):

Average Daily Gain ◽

Basal Diet ◽

Conversion Ratio ◽

Gut Health ◽

Total Volatile ◽

Feed Conversion ◽

Nursery Pigs ◽

Serum Iga ◽

Daily Gain ◽

Live Yeast

This study aimed to investigate the effects of dietary LY or LY combined with ZnO supplementation on performance and gut health in nursery pigs. 192 Duroc × Landrace × Yorkshire piglets (weaned on d 32 of the age with 9.2 ± 1.7 kg BW) were allocated into four treatments with eight replicate pens, six piglets per pen. The treatments included a basal diet as control (CTR), an antibiotic plus ZnO diet (CTC-ZnO, basal diet + 75 mg/kg of chlortetracycline + ZnO (2000 mg/kg from d 1 to 14, 160 mg/kg from d 15 to 28)), a LY diet (LY, basal diet + 2 g/kg LY), and a LY plus ZnO diet (LY-ZnO, basal diet + 1 g/kg LY + ZnO). The results showed that pigs fed LY or LY-ZnO had increased (p < 0.05) average daily gain, serum IgA, IgG, superoxide dismutase, fecal butyric acid, and total volatile fatty acid concentrations, as well as decreased (p < 0.05) feed conversion ratio and diarrhea rate compared with CTR. In conclusion, pigs fed diets with LY or LY combined with ZnO had similar improvement to the use of antibiotics and ZnO in performance, antioxidant status, immunoglobulins, and gut health in nursery pigs.

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Growth performance and fattening ability in castrated male and female East Balkan pigs reared organically in Strandzha mountain

Archiva Zootechnica ◽

10.2478/azibna-2020-0005 ◽

2020 ◽

Vol 23 (1) ◽

pp. 44-54

Author(s):

Nadezhda Palova ◽

Jivko Nakev ◽

Teodora Popova ◽

Maya Ignatova

Keyword(s):

Growth Performance ◽

Average Daily Gain ◽

Live Weight ◽

Conversion Ratio ◽

Feed Conversion Ratio ◽

Daily Weight Gain ◽

Feed Conversion ◽

Average Daily Weight Gain ◽

The Difference ◽

Daily Gain

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.

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Pengaruh Suplementasi Ampas Tahu, Ampas Tempe dan Ampas Kecap dalam Ransum Terhadap Performan Domba Lokal Jantan

Sains Peternakan ◽

10.20961/sainspet.5.1.1-9 ◽

2017 ◽

Vol 5 (1) ◽

pp. 1

Author(s):

Eka Handayanta

Keyword(s):

Body Weight ◽

Organic Matter ◽

Crude Protein ◽

Average Daily Gain ◽

Conversion Ratio ◽

Feed Conversion Ratio ◽

Soy Sauce ◽

Feed Consumption ◽

Feed Conversion ◽

Daily Gain

The aim of this research to determine the effect of supplementation of tofu. tempe, and soy sauce waste in ration on male local sheep performance. This research was carried out during three month, take place on July until October 200E in Minifarm Dept. of Animal Science, Agriculture Faculty of Sebelas Maret University, located in Jatikuwung. Gondangrejo, Karanganyar. It used 12 male local sheeps with average body weight of 15.86 ±0.93 kg, divided into four treatments and three replications, each replication consist of one sheep. The ration consisted of king grass only as basal diet, as many as four percent base on body weight. The treatment given is in the form of feed supplement, that namely without supplement (RO), 250 gram tofu waste (R1), 250 gram tempe waste (R2), and 250 gram soy sauce waste (R3). The data variables collected were feed consumption, dry and organic matter digestibility, crude protein consumption, energy consumption, average daily gain, and feed conversion ratio. All of data except average daily gain was analyzed by completely randomized design one way classification. While average daily gain was analyzed by covariance analyze. The result were significant followed by Duncan new multiple range test. The result showed that average of R0, RI, R2 and R3 for feed consumption 430.52; 720.44; 704.44; 549.08 gram/day, dry matter digestibility (%) 61,07; 72,46; 69,68: 63,60, organic matter digestibility (%) 64,41: 74,94; 72.41; 64,7 1, crude protein consumption 47.66; 106.77; 85.83; 73.70 gram/day, energy consumption 281.82; 482.65; 432.67; 330.83 gram/day, average daily gain 50.00.1X00: 116.19; 38.10 gram/day and feed conversion ratio 8.74; 5.61; 6.06; 15.2. The result of variance analyze showed that feed supplementation have highly significant effect (P<0.01) on all of the data variable colected. Conclusion of this research was supplementation of tofu waste and tempe waste could improved performance, while soy sauce waste could not improved the performance of male local sheep. Key words : sheep, tofu waste, tempe waste, soy sauce waste, performance

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Growth performance and carcass traits of Large White, Mukota and Large White ✕ Mukota F1crosses given graded levels of maize cob meal

Animal Science ◽

10.1017/s1357729800053844 ◽

2004 ◽

Vol 78 (1) ◽

pp. 61-66 ◽

Cited By ~ 17

Author(s):

A. T. Kanengoni ◽

K. Dzama ◽

M. Chimonyo ◽

J. Kusina ◽

S. M. Maswaure

Keyword(s):

Crude Protein ◽

Average Daily Gain ◽

Metabolizable Energy ◽

Backfat Thickness ◽

Food Conversion ◽

Large White ◽

Daily Food ◽

Maize Cob ◽

Rate Of Decline ◽

Daily Gain

AbstractA study was conducted to compare the performance of Mukota, Large White (LW) and LW ✕ Mukota F1pigs given increasing levels of maize cob meal. Sixteen female weaners of each genotype were given, ad libitum, diets containing 0, 100, 200 and 300 g maize cob meal per kg of diet for 14 weeks. The diets were designed to contain similar levels of protein (ca. 160 g crude protein per kg) and energy (ca. 9 MJ metabolizable energy per kg). Average daily food intake per unit metabolic body weight (ADFI per kg M0·75), average daily gain (ADG) and food conversion ratio (FCR) were determined. The pigs were slaughtered and cold dressed mass (CDM) and backfat thickness were determined for each pig. The ADFI per kg M0·75was similar among the four diets for the three genotypes. The rate of decline in ADG was higher (P < 0·05) in the LW than in the other two genotypes. The FCR in the Mukota was poorer (P < 0·05) than that in the LW and the F1crosses. The Mukota had the highest (P < 0·05) backfat thickness (K5 and K7·5) values of the three genotypes across the four diets, followed by the F1crosses. The CDM values for the LW and the F1crosses were similar and were higher (P < 0·05) than those for the Mukota. The findings indicate that F1crosses and the Mukota were better able to utilize diets containing high levels of maize cob meal than LW pigs.

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Feeding frequency and its effect on feedlot performance in steers

Canadian Journal of Animal Science ◽

10.4141/cjas95-037 ◽

1995 ◽

Vol 75 (2) ◽

pp. 255-257 ◽

Cited By ~ 2

Author(s):

L. A. Goonewardene ◽

D. F. Engstrom ◽

D. R. ZoBell

Keyword(s):

Feed Intake ◽

Feed Efficiency ◽

Average Daily Gain ◽

Mixed Diet ◽

Feeding Frequency ◽

Feedlot Performance ◽

Or Efficiency ◽

Beneficial Effects ◽

Feedlot Steers ◽

Daily Gain

One hundred and twenty commercial feedlot steers were penned and randomly allocated to three treatments: fed once, twice and three times per day, over a grower through finisher period of 196 d. Feeding frequency had no effect (P > 0.05) on average daily gain, feed intake or efficiency overall. We conclude that there are no beneficial effects in feeding a total mixed diet more frequently to feedlot steers. Key words: Feeding, frequency, gain, steers, feed efficiency

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An evaluation of biological and conventional pig selection indices

Australian Journal of Experimental Agriculture ◽

10.1071/ea9890775 ◽

1989 ◽

Vol 29 (6) ◽

pp. 775 ◽

Cited By ~ 2

Author(s):

RW Ponzoni ◽

RL Davies

Keyword(s):

Average Daily Gain ◽

Selection Criterion ◽

Conversion Ratio ◽

Correlated Response ◽

Feed Conversion ◽

Genetic Changes ◽

Lean Meat ◽

Biological Indices ◽

Selection Indices ◽

Daily Gain

Two biological and 4 conventional pig selection indices were compared. The biological indices were lean meat growth (LGRTH) and lean meat feed conversion (LFCR). The conventional indices included average daily gain (ADG) and back fat measured at the P2 site (FP2) as criteria (index OF), or as in OF but with the addition of feed conversion ratio (FCR) as a selection criterion (index BTS). Also, using the same criteria as in BTS and OF, restricted indices were derived setting the genetic change in FP2 at zero (indices BTS.FP2 and OF.FP2). The correlated response in average daily feed intake (ADI) was calculated for all indices. The application of all indices resulted in variable, but desirable, predicted genetic changes in ADG, FCR and FP2. The correlated response in AD1 was positive, except for BTS and LFCR, where it was zero and negative, respectively. The correlations among all indices were high (r > 0.7) except for those restricting FP2. It is concluded that conventional selection indices have advantages over biological indices because they more easily enable the monitoring of changes in the components of overall merit and updating of breeding objectives.

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