scholarly journals 23 Protein Source Selection During Choice-Feeding in Nursery Pigs

2020 ◽  
Vol 98 (Supplement_3) ◽  
pp. 36-36
Author(s):  
Jackie Harr ◽  
Marcia Shannon ◽  
Jeffre Firman

Abstract Animal by-product feeding practices decrease waste from animal processing and create feedstuffs with favorable nutrient profiles. Including animal proteins has decreased recently due to consumer push to increase vegetarian fed animals. Pigs have demonstrated abilities to choose diets meeting their nutritional requirements when presented with a choice-feeding system (Rose and Kyriazakis, 1991). The objective of this study was to observe nursery pig behaviors in selecting animal and plant protein sources given a choice-feeding system. Pigs (n=72) were housed in groups of nine and given ad libitum access to ground corn, soybean meal (SBM), vitamin premix, ruminant blood meal (RBM), bovine meat and bone meal (BMB), and chicken by-product meal (CBP). Feedstuffs were randomly assigned to feeders and weighed daily. The study was repeated with individually housed pigs (n=8) to compare feeding behaviors. Pigs were weighed at the beginning of the trial with mean weights of 16.83 kg for group and 24.71 kg for individual and end of the trial with mean weights of 24.25 kg for group and 34.90 kg for individual. No intake differences were seen between housing treatment (P >0.05). Protein source intake differed (P< 0.0001), with CBP having the greatest consumption followed by SBM. A second trial (n=30) was conducted to determine preference when protein sources were mixed into corn-soy based diets and given ad libitum in a choice-feeding system for both groups of four (n=24) and individually housed pigs (n=6); starting mean weights of 14.83 kg and ending weights of 21.14 kg. Preference did not differ between housing or pen (P >0.05) showing no feeder preferences or diet preference (P=0.9997). Data concludes that pigs preferentially select animal by-products as part of their diet when presented with a choice-feeding system. Nursery pigs do not have a preference when choosing from diets.

Our Nature ◽  
1970 ◽  
Vol 1 (1) ◽  
pp. 26-29 ◽  
Author(s):  
Babita Tuladhar

Two iso-nitrogenous and iso-caloric diets were formulated using Azolla, Soya bean and oilcakes as a sole protein source in diet B and fishmeal as sole protein in diet A. Six ponds were used as experimental ponds. The fishes of three ponds were supplied with Azolla diet B while the fishes of other three ponds were supplied with fish meal diet A. Growth of the fish in three ponds with plant protein sources was significant than in the fishes of other ponds with fish meal diet A. The yield of fish supplemented with Azolla, Soya beans and Oilcakes was higher than that of fish supplied with fishmeal diet. Keyword: Plant protein, fish mealdoi:10.3126/on.v1i1.300Our Nature (2003) 1: 26-29


Nutrients ◽  
2019 ◽  
Vol 11 (5) ◽  
pp. 1153 ◽  
Author(s):  
Lene Secher Myrmel ◽  
Kristin Røen Fauske ◽  
Even Fjære ◽  
Annette Bernhard ◽  
Ulrike Liisberg ◽  
...  

Low-fat diets and energy restriction are recommended to prevent obesity and to induce weight loss, but high-protein diets are popular alternatives. However, the importance of the protein source in obesity prevention and weight loss is unclear. The aim of this study was to investigate the ability of different animal protein sources to prevent or reverse obesity by using lean or obese C57BL/6J mice fed high-fat/high-protein or low-fat diets with casein, cod or pork as protein sources. Only the high-fat/high-protein casein-based diet completely prevented obesity development when fed to lean mice. In obese mice, ad libitum intake of a casein-based high-fat/high-protein diet modestly reduced body mass, whereas a pork-based high-fat/high-protein diet aggravated the obese state and reduced lean body mass. Caloric restriction of obese mice fed high-fat/high-protein diets reduced body weight and fat mass and improved glucose tolerance and insulin sensitivity, irrespective of the protein source. Finally, in obese mice, ad libitum intake of a low-fat diet stabilized body weight, reduced fat mass and increased lean body mass, with the highest loss of fat mass found in mice fed the casein-based diet. Combined with caloric restriction, the casein-based low-fat diet resulted in the highest loss of fat mass. Overall, the dietary protein source has greater impact in obesity prevention than obesity reversal.


Nutrients ◽  
2021 ◽  
Vol 13 (6) ◽  
pp. 1962
Author(s):  
Chad M. Kerksick ◽  
Andrew Jagim ◽  
Anthony Hagele ◽  
Ralf Jäger

Adequate dietary protein is important for many aspects of health with current evidence suggesting that exercising individuals need greater amounts of protein. When assessing protein quality, animal sources of protein routinely rank amongst the highest in quality, largely due to the higher levels of essential amino acids they possess in addition to exhibiting more favorable levels of digestibility and absorption patterns of the amino acids. In recent years, the inclusion of plant protein sources in the diet has grown and evidence continues to accumulate on the comparison of various plant protein sources and animal protein sources in their ability to stimulate muscle protein synthesis (MPS), heighten exercise training adaptations, and facilitate recovery from exercise. Without question, the most robust changes in MPS come from efficacious doses of a whey protein isolate, but several studies have highlighted the successful ability of different plant sources to significantly elevate resting rates of MPS. In terms of facilitating prolonged adaptations to exercise training, multiple studies have indicated that a dose of plant protein that offers enough essential amino acids, especially leucine, consumed over 8–12 weeks can stimulate similar adaptations as seen with animal protein sources. More research is needed to see if longer supplementation periods maintain equivalence between the protein sources. Several practices exist whereby the anabolic potential of a plant protein source can be improved and generally, more research is needed to best understand which practice (if any) offers notable advantages. In conclusion, as one considers the favorable health implications of increasing plant intake as well as environmental sustainability, the interest in consuming more plant proteins will continue to be present. The evidence base for plant proteins in exercising individuals has seen impressive growth with many of these findings now indicating that consumption of a plant protein source in an efficacious dose (typically larger than an animal protein) can instigate similar and favorable changes in amino acid update, MPS rates, and exercise training adaptations such as strength and body composition as well as recovery.


Author(s):  
Angela Cividini ◽  
Dušan Terčič ◽  
Mojca Simčič

The aim of this study was to estimate the effect of feeding system on the growth rate and carcass quality of crossbred Improved Jezersko-Solčava x Texel (JSRT) lambs and to evaluate the effect of sex on these traits. The trial was conducted in nature according to the traditional rearing systems. The trial included 44 crossbred lambs, which were born and reared until the slaughter in three different flocks. In the age of 10 days suckled lambs were offered with ad libitum corresponding diets according to the feeding system. All lambs were slaughtered in seven consecutive days by the same procedure. The effect of feeding system significantly affected daily gain from birth to slaughter, EUROP carcass conformation and shoulder width. Likewise, the effect of sex significantly affected daily gain from birth to slaughter and internal fatness of carcasses. According to carcass cuts the feeding system significantly affected only the proportion of neck and leg. Considering meat quality traits, feeding system had a significant effect on the pH 45 and CIE a* values. In this study, we could speculate that more than the feeding system the growth and the carcass traits as well as meat traits were affected by the amount of the supplement.


2021 ◽  
Vol 99 (Supplement_1) ◽  
pp. 203-204
Author(s):  
Analicia J Swanson ◽  
Jorge Y Perez-Palencia ◽  
Crystal L Levesque ◽  
Amanda Hesse

Abstract A total of 38 mixed parity sows were used from 28-d of gestation until weaning to determine the effects of medium chain fatty acids (MCFA) in sow and nursery pig diets on litter characteristics and growth performance. On 28-d of gestation, sows were blocked by parity and body weight (BW), and allotted to either a control diet (UNSUP) or a control diet plus 0.3% inclusion of DaaFit Plus (MCFA) fed during gestation and lactation. At weaning, piglets (n=432) were allocated in a 2x2 factorial based on maternal diet (UNSUP or MCFA) and post-weaning diet (UNSUPnurs or MCFAnurs) in a 3-phase nursery pig feeding program lasting 42 days. Individual piglets were weighed at birth, 7-d, at weaning and every 2 weeks post-weaning. A flu outbreak occurred during the latter part of gestation leading to high overall stillborn rate (11%). There was no impact of MCFA supplementation on sow performance (P>0.14). During the suckling period, MCFA fed to sows had no impact on piglet weights or ADG (P>0.82). In the nursey period, overall gain (0.112±0.02 kg) was low in the first two weeks possibly due to health challenges. Supplementation of MCFA to sows or nursery pigs had no impact on body weights during the nursery period (P>0.32); however, absolute differences between groups increased with week [wean, 0.10kg; wk 2, 0.14kg; wk 4, 0.71kg; wk 6, 0.83kg) to the advantage of MCFA fed pigs. Pigs from MCFA fed sows had greater feed intake (P< 0.02) from 14 to 28-d and decreased gain:feed (P < 0.04) from 28 to 42-d compared to pigs from UNSUP sows. Overall, sow and nurser-y pigs fed MCFA had numerically greater 42-d BW, ADG, and ADFI. In conclusion, despite health challenges, supplementation with MCFA in gestation, lactation or in the nursery period improved piglet performance.


1966 ◽  
Vol 8 (1) ◽  
pp. 43-45 ◽  
Author(s):  
M. Kay ◽  
T. R. Preston ◽  
N. A. MacLeod ◽  
Euphemia B. Philip

1. Nitrogen balance studies were conducted on 8 early-weaned calves fed on four diets containing respectively Peruvian fish meal, soya bean meal, groundnut meal and dried distillers grains as the major sources of protein.2. Nitrogen retention differed significantly between diets, being highest on the fish meal diet, and lowest on the groundnut diet.


2021 ◽  
Vol 99 (Supplement_3) ◽  
pp. 118-118
Author(s):  
Yi-Chi Cheng ◽  
Marcos E Duarte ◽  
Sung Woo Kim

Abstract The objective was to evaluate Yarrowia lipolytica (YL) as a lipid supplement fed to nursery pigs for the growth performance and apparent ileal digestibility (AID). Twenty-four pigs weaned at 21 d of age (12 barrows and 12 gilts with initial BW at 7.2 ± 0.6 kg) were allotted to 3 dietary treatments (n = 8) based on the randomized complete block design with sex and BW as blocks. The main effect was the dietary supplementation of YL (0, 1.5, and 3.0%, replacing poultry fat) with nutrients meeting or exceeding the requirements by NRC (2012) and fed to pigs for 21 d based on 2 phases. Feed intake and BW were recorded at d 0, 10, and 21 to calculate ADG, ADFI, and G:F. Fecal scores were recorded at every odd day from d 3 to 19. Pigs were euthanized on d 21 to collect ileal digesta for AID of nutrients in diets. Data were analyzed using Proc Mixed of SAS. There were no differences in growth performance among treatments. Whereas, pigs fed 0 and 1.5% YL had higher (P < 0.05) AID of DM (55.0 and 52.2% to 40.2%, respectively) and GE (62.1 and 60.6% to 49.8%, respectively) than pigs fed 3% YL. There were no differences in AID of DM and GE between the pigs fed 0% and 1.5% YL. In conclusion, 1.5% Yarrowia lipolytica could be supplemented in nursery pig diets reducing 0.8% of poultry fat without affecting growth performance and AID of DM and GE.


1984 ◽  
pp. 436-534
Author(s):  
W. G. Pond ◽  
J. H. Maner

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