scholarly journals 56 Effects of creep feed supplementation and sire breed on the post-weaning performance of replacement doelings

2020 ◽  
Vol 98 (Supplement_2) ◽  
pp. 73-74
Author(s):  
Emily G Hayes ◽  
Lauren Stevens ◽  
Shaneqwa Thomas ◽  
Kaylee Hurt ◽  
Richard Browning
Keyword(s):  
Survival Rate ◽  
Reproductive Performance ◽  
Reproductive Output ◽  
Creep Feeding ◽  
Feed Supplementation ◽  
Fitness Traits ◽  
Creep Feed ◽  
Main Effect ◽  
Breeding Herd ◽  
Sire Breed

Abstract This study examined the influence of creep feeding and sire breed on post-weaning replacement doeling traits. Over 3 years, doelings by Kiko, Myotonic, Spanish and Savanna sires were creep-fed (CF; n = 116) for 60 d or not creep-fed (NC; n = 117). Sire breeds were balanced across creep treatments. Doelings were weighed at 3 mo old (weaning) and various postweaning ages. Doelings entered the breeding herd at 18 mo of age and fitness traits recorded. At 3-, 6-, and 12-mo of age CF (14.7 ± 0.6, 19.3 ± 1.2, and 24.6 ± 0.9 kg, respectively) were heavier (P < 0.05) than NC (13.8 ± 0.6, 17.9 ± 1.2, and 23.6 ± 0.9 kg, respectively). Treatment did not affect 18-mo weights. Sire breed did not affect 3-mo weight. Sire breed influenced (P < 0.05) 6-, 12-, and 18-mo weights. Myotonic-sired doelings were lightest (P < 0.05) and Kiko-sired doelings were heavier (P < 0.05) than Savanna-sired. Breed x treatment interacted (P < 0.05) for survival to 18 mo of age. Kiko-sired CF doelings had a higher (P < 0.05) survival rate than Savanna-sired CF (88.6 ± 6.0% vs. 44.6 ± 11.5%). Breed did not affect survival rate (P> 0.05) within the NC group. As a main effect, CF had a higher (P < 0.05) survival rate than NC (81.5 ± 6.3% vs. 65.6 ± 8.7%). Sire breed affected (P < 0.05) reproductive output. Cumulative kid crop weaned across the first 2 breeding years for the whole weaned doeling population was higher (P < 0.05) for Myotonic- and Kiko-sired (1.4 and 1.2 ± 0.2 kids) does than Savanna-sired (0.5 ± 0.1 kids). Creep feeding did not affect reproductive output. Creep feed supplementation and sire breed influenced post-weaning doeling weights. Only sire breed affected reproductive performance of the young does.

30 The Effect of Creep Feed Composition and Form on Pre- and Post-weaning Growth Performance of Pigs and the Utilization of Low-quality Nursery Diets

2021 ◽  
Vol 99 (Supplement_1) ◽  
pp. 21-22
Author(s):  
Brenda Christensen ◽  
Lee-Anne Huber
Keyword(s):  
Growth Performance ◽  
Milk Replacer ◽  
Creep Feeding ◽  
Feed Composition ◽  
Creep Feed ◽  
Three Phase ◽  
Feeding Program ◽  
Main Protein ◽  
Liquid Milk ◽  
Feeding Regimen

Abstract Fifty-six litters standardized to 12 piglets from first-parity sows were used to determine the effects of creep and nursery diet compositions on pre- and post-weaning pig growth performance. At three days of age, litters (initial BW 2.31±0.61kg) were assigned to one of four creep feeding regimens (n=14): [1] commercial creep feed (COM), [2] liquid milk replacer (LMR), [3] pelleted milk replacer (PMR), or [4] no creep feed (NO); creep feeds contained 1.0% brilliant blue as a fecal marker. Fecal swabs were collected every 3±1 days to identify piglets that regularly consumed creep feed. At weaning (18±1 days of age), six pigs per litter that consumed creep feed were placed on either a HIGH- (contained highly digestible animal proteins) or LOW- (contained corn and soybean meal as the main protein sources) quality nursery diet (n = 7) in a three-phase feeding program over 38 days. The LMR disappeared at the greatest rate (37.7 g/pig/d; DM-basis) versus COM and PMR (10.8±1.5 g/pig/d; P < 0.001). Litters that received LMR had the greatest proportion of pigs with blue fecal swabs between study days 4 and 15 (85.0 vs 59.0±0.4%; P < 0.05) and LMR piglets had greater BW at weaning versus all other treatments (6.32, 6.02, 5.92, 5.67±0.14 kg, for LMR, COM, NO, and PMR, respectively; P < 0.001). Over the entire nursery period, pigs that received LOW diets had reduced ADG (399 vs 485±42 g; P < 0.001), ADFI (520 vs 595±37 g; P< 0.001), G:F (0.77 vs 0.82±0.03; P < 0.01), and BW at the end of the nursery period (21.2 vs 24.4±1.6 kg; P < 0.001), with no carryover effects of creep feeding regimen. Providing supplemental nutrition during the suckling period via LMR improved pig body weight at weaning, but did not improve post-weaning growth performance, regardless of nursery diet quality.

scholarly journals Effects of creep feeding and its interactions with other factors on the performance of meat goat kids and dams when managed on pasture

2019 ◽  
Vol 3 (4) ◽  
pp. 1466-1474
Author(s):  
Emily G Hayes ◽  
Raquel V Lourençon ◽  
Richard Browning
Keyword(s):  
Growth Traits ◽  
Survival Rates ◽  
Influential Factors ◽  
Daily Weight Gain ◽  
Litter Type ◽  
Financial Returns ◽  
Creep Feeding ◽  
Creep Feed ◽  
Important Interaction ◽  
Meat Goat

Abstract Creep feeding and its possible interactions with other influential factors (genetics, litter type, and sex) for weaning traits were studied in meat goat kids and their dams. Kids across 3 yr were creep fed (254 kids; 5 pens) or not creep fed (255 kids; 5 pens) from 30 to 90 d of age. Creep-fed kids had higher (P ≤ 0.05) preweaning average daily weight gain and weaning weights (113.1 ± 13.0 g/d; 15.0 ± 0.8 kg) than kids not creep fed (99.8 ± 13.1 g/d; 14.0 ± 0.8 kg). However, financial returns were not higher (P > 0.05) for creep-fed kids compared with kids not creep fed. There was no difference (P > 0.05) in kid conformation score or survival rates between the treatment groups. The only important interaction among kid traits was treatment × litter type (P < 0.05) for FAMACHA scores. Within noncreep pens, single kids had lower (better; P < 0.05) FAMACHA scores (2.9 ± 0.3) than twin kids (3.9 ± 0.3). There was no litter-type effect on FAMACHA scores for kids within the creep feed pens. Dams of the creep-fed (n = 175) and noncreep (n = 178) kids were also evaluated. Treatment did not affect (P > 0.05) litter weights, dam weight change, gross revenue for weaned litters, or fecal egg counts. Treatment interacted with litter type (P < 0.05) to effect packed cell volume (PCV). In the noncreep group, dams raising singles had higher (better; P < 0.05) PCV (18.7 ± 1.3%) than dams rearing twin kids (15.7 ± 1.3%). The litter-type effect on dam PCV was not evident (P > 0.05) in the creep-fed group. Creep feeding improved some kid growth traits but did not improve dam traits or financial returns. Interactions of creep treatment with other factors were minimal for doe-kid traits.

Effect of creep feed intake on weaning weight of piglets

1996 ◽  
Vol 1996 ◽  
pp. 138-138
Author(s):  
S. Kavanagh ◽  
P.B. Lynch ◽  
P.J. Caffrey ◽  
W.D. Henry
Keyword(s):  
Feed Intake ◽  
Dry Matter ◽  
Management Systems ◽  
Creep Feeding ◽  
Creep Feed ◽  
Combining Data ◽  
Medium Quality ◽  
Feeding Trials ◽  
Supplementary Feed

The benefits of creep feeding in a 3 - 4 week weaning system is uncertain. Sow milk yield peaks at 3 - 4 weeks postpartum and the need for supplementary feed to maintain growth rates of suckling pigs is minimal. The objective of this study was to quantify creep feed intake by suckling pigs and to assess the effect of creep feeding on piglet growth and weight at weaning when weaned at 26.0 (s.e. 0.6) days of age.The results reported here were obtained by combining data from 296 litters of suckling pigs on 5 creep feeding trials. The five trials involved comparison of diets and management systems as follows: (A) effect of quality of creep feed (high quality starter diet vs medium quality starter diet vs a pelleted cooked cereal); (B) comparison of meal and pelleted diets; (C) the effect of form (reconstituted calf milk replacer - 20 % dry matter vs solid pellet vs peat primer offered with a solid pellet); (D) effect of feed freshness (fresh creep vs 30 day old creep vs 60 day old creep feed); (E) effect of creep feeding piglets on pre-weaning performance.

Effect of different creep feeding treatments and group composition on the initiation of piglet feeding behaviour immediately post-weaning

2007 ◽  
Vol 2007 ◽  
pp. 80-80
Author(s):  
F. H. Reynolds ◽  
H. M. Miller ◽  
J. M. Forbes
Keyword(s):  
Feed Intake ◽  
Feeding Behaviour ◽  
Maximum Rate ◽  
Learning Effect ◽  
Group Composition ◽  
Learning Behaviour ◽  
Recording Equipment ◽  
Creep Feeding ◽  
Creep Feed ◽  
Sufficient Food

The post-weaning growth check of the piglet can be attributed to the inability of the animal to eat sufficient food in the initial post weaning period and hence grow at a maximum rate (Pluske et al., 1996). It is essential therefore to identify determinants of individual feed intake characteristics post weaning to improve piglet performance. A palatable creep-diet is often fed to piglets pre-weaning to increase performance and to allow piglets to become familiarised with solid feed sourced from a feeder. Bruininx (2002) et al., demonstrated using single spaced Feed Intake Recording Equipment (FIRE), that creep feed stimulates post-weaning feed intake and gain. In addition, Morgan et al. (2001) investigated feeding behaviour of piglets paired from creep or no creep backgrounds and concluded a learning effect which increased the feeding behaviour of the naïve piglet. The purpose of this experiment, therefore, was to investigate the effect of offering selected litters either creep feed or zero creep (naïve) pre-weaning on their latency to initiate feeding post weaning. It was hypothesised that learning behaviour between piglets may influence feeding initiation and so this experiment would also look at the effect of mixing piglets from the two lactation backgrounds.

scholarly journals Effect of parity on reproductive performance sows of different breeds

2020 ◽  
Vol 50 (3) ◽  
pp. 434-441
Author(s):  
R. Klimas ◽  
A. Klimienė ◽  
W. Sobotka ◽  
W. Kozera ◽  
P. Matusevičius
Keyword(s):  
Survival Rate ◽  
Litter Size ◽  
Reproductive Performance ◽  
Weaned Piglets ◽  
Large White ◽  
Litter Weight ◽  
Piglet Survival

The aim of this study was to determine the effect of parity on reproductive performance by sows of different breeds. The sows were raised on three farms, and had seven or more litters of not fewer than seven piglets. A total of 1511 litters from various parities of Lithuanian White (N =721), Large White (N = 162) and Landrace (N = 628) sows were contained in the data that were used in this study. Multiparous sows had larger litters than primiparous sows. Piglet survival rate declined from parity 7. An increase in litter size was observed until parity 5 in Large White and until parity 6 in improved Lithuanian White (P <0.05). In comparison with parity 1, Landrace sows up to parity 5 showed not only increased prolificacy, but also increased number and litter weight of piglets at 21 days old, and the number and litter weight of weaned piglets (P <0.01). The current findings indicate that sows of these breeds can be used effectively in breeding herds until parity 5 and parity 6.Keywords: Landrace, Large White, Lithuanian White, litter size

Aspects of semen production in boars

1984 ◽  
Vol 1984 ◽  
pp. 86-86
Author(s):  
J.R. Walters ◽  
C.G. Green ◽  
J. Gray ◽  
Sally Goodman ◽  
P. N. Hooper
Keyword(s):  
Reproductive Performance ◽  
Production Traits ◽  
Preliminary Results ◽  
Breeding Herd ◽  
On Farm ◽  
Production Characteristics

Efficient reproductive performance in the pig breeding herd depends on many different factors including the behaviour and semen production characteristics of the boar. The latter are difficult to measure under on-farm conditions but results are accumulating from experimental and A.I. units (e.g. Du Mesnil du Buisson, Paquignon and Courot,1978; Fent, Wettermann and Johnson, 1983). The preliminary results presented here investigated semen production traits in a large commercial A. I. stud.

Liquid diets fed prior to weaning enhance performance of weaned piglets

2000 ◽  
Vol 2000 ◽  
pp. 119-119
Author(s):  
P.J. Blanchard ◽  
P. Toplis ◽  
L. Taylor ◽  
H.M. Miller
Keyword(s):  
Growth Rate ◽  
Current Practice ◽  
Negative Control ◽  
Milk Replacer ◽  
Weaned Piglets ◽  
Creep Feeding ◽  
Weaning Weight ◽  
Subsequent Performance ◽  
Creep Feed ◽  
The Uk

Creep feeding enhances weaning weight (King et al., 1998) and may also enhance early post-weaning growth rate, both of which are positively correlated to subsequent performance (Miller et al., 1999). When preweaning feeds are offered, current practice in the UK is to feed either dry feed from day 14 to weaning or acidified milk replacer from days 3 to 18. Intakes of dry feed pre-weaning are generally low whereas liquid feeds are consumed more readily. Our objectives were 1) to offer creep feed as a gruel to test whether this would enhance intake of creep and provide an alternative to milk replacer, and 2) to provide all three forms of supplementary feeding together to determine whether this further increased performance. Piglets receiving no supplementary pre-weaning feed were the negative control.

EFFECT OF NUTRITIONAL FLUSHING, SUPPLEMENTAL FAT AND SUPPLEMENTAL LYSINE FROM PUBERTY TO BREEDING AND DURING EARLY GESTATION ON REPRODUCTIVE PERFORMANCE OF GILTS

1988 ◽  
Vol 68 (3) ◽  
pp. 941-951 ◽  
Author(s):  
R. R. GRANDHI
Keyword(s):  
Survival Rate ◽  
Reproductive Performance ◽  
Control Diet ◽  
Allantoic Fluid ◽  
Progesterone Level ◽  
Embryo Survival ◽  
Early Gestation ◽  
Treatment Groups ◽  
Animal Fat ◽  
Supplemental Fat

Four experiments were conducted, using a total of 356 Landrace × Yorkshire crossbred gilts, to determine the influence of flushing, supplemental fat and supplemental lysine fed from puberty to breeding (exps. 1 and 2) and from puberty through early gestation (exps. 3 and 4) on the reproductive performance of gilts. All gilts were housed in total confinement and fed ad libitum a 16% protein swine grower diet until 150 d of age. The diet was then restricted to 2 kg d−1 until puberty. The treatment diets fed from puberty to breeding in exps. 1 and 2 were: (1) control, a 12% protein barley-soybean meal gestation diet fed at 2 kg d−1 (24.4 MJ DE d−1); (2) flushing, control diet fed at 3 kg d−1 (36.6 MJ DE d−1; (3) animal fat, control diet fed at 2 kg d−1 plus 622 g of fat premix (36.6 MJ DE d−1; and (4) lysine, control diet with supplemental lysine (14 g d−1) fed at 2 kg d−1 (24.4 MJ DE d−1). After breeding, all gilts were fed control diet at 2 kg d−1 until approximately 30 d at gestation. In exps. 3 and 4, the same treatment diets were used except flushing was omitted and they were fed from puberty to approximately 30 d of gestation. No significant differences (P > 0.05) among the treatment groups were found in any of the experiments for the number of corpora lutea and normal embryos, and ovarian, uterine, and fetal weights. In exp. 2, the embryo survival rate (%) was significantly lower (P < 0.05) in the flushing (81.7 ± 3.3) and animal fat (78.3 ± 3.3) groups than in the control (92.9 ± 3.0); however, the lysine (88.8 ± 3.5) group did not differ significantly from the other groups. The embryo survival rate was also reduced (P < 0.05) by supplemental fat (81.5 ± 2.7) when compared to the control (86.8 ± 3.0) and lysine (88.8 ± 2.7) diets in exp. 3 but not in exp. 4. The serum progesterone level (ng/mL−1) was lower (P < 0.05) in the animal fat group (4.1 ± 0.6) than in the control (6.3 ± 0.6) and lysine (6.1 ± 0.6) groups in exp. 4. However, progesterone level of allantoic fluid in exp. 4 and estrone sulfate levels of both serum and allantoic fluid in exps. 3 and 4 were similar for the three treatment groups. The overall results indicated that flushing, supplemental fat or supplemental lysine fed from puberty to breeding, and supplemental fat or supplemental lysine fed from puberty through early gestation did not improve the ovulation rate, embryo survival or fetal development in gilts. Key words: Ovulation rate, embryo survival, flushing, fat, lysine, hormones, gilts

The sex ratio of a gilt’s birth litter can affect her fitness as a breeding female

2018 ◽  
Vol 58 (9) ◽  
pp. 1567 ◽  
Author(s):  
J. Seyfang ◽  
R. N. Kirkwood ◽  
A. J. Tilbrook ◽  
C. R. Ralph
Keyword(s):  
Sex Ratio ◽  
Reproductive Performance ◽  
Reproductive Potential ◽  
Group Housing ◽  
Pork Industry ◽  
Welfare Issue ◽  
Breeding Herd ◽  
Uterine Environment ◽  
Animal Welfare Issue ◽  
Selection Of

Lifetime reproductive performance and behaviour are established in utero driven by genetics and the steroidal milieu of the uterine environment. Developing males synthesise androgens that can be absorbed by females in the litter. Consequently, the proportion of males in a litter has the potential to affect both lifetime reproductive performance and behaviour of female littermates. Although reproductive potential is understandably important for gilt selection, behaviour is becoming progressively more important as group housing of sows increases. Aggression can be a cause for removal from the breeding herd, and can also negatively affect reproductive performance and herd longevity. This review covers existing evidence of masculinisation in rodents and sheep, the mechanism causing masculinisation, and the knowledge gaps surrounding masculinisation in pigs. Premature culling of gilts is an economic and animal welfare issue in the pork industry resulting in low retention of gilts and reduced productivity. The selection of gilts needs to be improved to incorporate both lifetime reproductive potential and behaviour. We determined that there is cause to investigate the effect of the birth litter sex ratio of a gilt on her suitability for selection into the breeding herd.

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