Animal Fats in Rabbit Feeding – A Review

Gugołek, Andrzej; Kowalska, Dorota

doi:10.2478/aoas-2020-0091

Cited by 6 publications

(8 citation statements)

References 116 publications

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“…The use of animal fats in rabbit nutrition was described in detail in one of our previous articles (Gugołek and Kowalska 2020), therefore only major studies addressing this problem are summarized in this review.…”

Section: Animal Fats In Rabbit Nutritionmentioning

confidence: 99%

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Feeds of animal origin in rabbit nutrition – a review

Gugołek

Kowalska

2022

Annals of Animal Science

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Rabbits are classified as obligate herbivores. However, under natural conditions, some members of the family Leporidae incorporate animal products into their diets. Therefore, it seems biologically justified to supplement the diets of farmed rabbits with feeds of animal origin as sources of protein, fat and minerals. The aim of this review was to describe, from a historical perspective, the use of various feeds of animal origin in rabbit nutrition. The applicability of by-products from mammal, poultry, fish and invertebrate processing for rabbit feeding was evaluated, including the future prospects for their use. A review of the available literature revealed that various animal-based feeds can be valuable protein sources in rabbit diets, but their inclusion levels should not exceed 5-10%. Studies investigating their efficacy have been conducted since the 1970s. In some regions of the world, the use of animal-derived protein in livestock feeds was prohibited due to the risk of spreading bovine spongiform encephalopathy (BSE). However, the interest in animal by-products as protein sources in livestock diets is likely to increase since the above ban has been lifted.

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Section: Animal Fats In Rabbit Nutritionmentioning

confidence: 99%

“…The applicability of by-products from mammal, poultry, fish and invertebrate (in particular insect) processing for rabbit feeding was evaluated, with a special emphasis on sources of dietary protein and minerals. The role of animal fats in rabbit nutrition has been described in our previous review article (Gugołek and Kowalska, 2020).…”

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confidence: 99%

Feeds of animal origin in rabbit nutrition – a review

Gugołek

Kowalska

2022

Annals of Animal Science

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“…The use of fatty ingredients in growing rabbit feed was widely studied [ 1 ]. Fat addition in rabbit diets increases digestible energy and improves feed efficiency [ 2 , 3 , 4 ].…”

Section: Introductionmentioning

confidence: 99%

“…In other studies, the efficiency of nitrogen retention has been improved by increasing fat addition [ 10 ] or increasing w-3 fatty acid content [ 11 ]. Moreover, fatter carcasses were also found when dietary fat content is increased [ 1 , 12 ].…”

Section: Introductionmentioning

confidence: 99%

Effect of Type and Dietary Fat Content on Rabbit Growing Performance and Nutrient Retention from 34 to 63 Days Old

Alejandro¹,

Isabel²,

Nicodemus³

2021

Animals

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The study was carried out on individually and collectively housed growing rabbits from 34 to 63 days of age. Two experiments were conducted using three fat sources: Soybean oil (SBO), Soya Lecithin Oil (SLO), and Lard (L; Exp. 1), and SBO, Fish Oil (FO), and Palm kernel Oil (PKO; Exp. 2), added at two inclusion levels (1.5 and 4.0%). In both trials, 180 rabbits were housed in individual cages and additional 600 rabbits in collective cages from day 34 to 63. Animals fed with 4% dietary fat showed lower Daily Feed Intake (DFI) and Feed Conversion Ratio (FCR) than those fed with 1.5%, except in the individually housed animals in Exp. 1. In the collective housed group in Exp. 1, DFI was a 4.8% higher in animals fed with diets containing lard than those fed with SBO (p = 0.036). Lard inclusion also tended to reduce mortality (p = 0.067) by 60% and 25% compared with SBO and SLO diets, respectively. Mortality was the highest with the higher level of soya lecithin (14% vs. 1%, p < 0.01). A similar mortality rate was observed in the lowest level of SBO. In the grouped-housed animals in Exp. 2, a decrease of DFI (−12.4%), Bodyweight (BW) at 63 d (−4.8%), and Daily Weight Gain (DWG) (−7.8%) were observed with the inclusion of fish oil (p < 0.01) compared to other fat sources. Fish oil also tended to increase (p = 0.078) mortality (13.2%) compared with palm kernel oil (6.45%); similar results were found when animals were individually housed. The overall efficiency of N retention (NRE) increased with the highest level of fat in Exp. 1 (34.9 vs. 37.8%; p < 0.0001). It can be concluded that lard and palm kernel oil are alternative sources of fat due to the reduction of mortality. The inclusion of fish oil impaired animal productivity and increased mortality. An increment of the dietary fat level improved FCR and overall protein retention efficiency.

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“…There are a number of data in the literature that the use of various additives in rabbits' feeding has a positive effect on productivity, safety and reproductive function of animals (Talukder, 2013). However, not all authors agree, but on the contrary, they argue that not all supplements have a positive effect on productivity indicators (Smet et al, 2008;Gugołek & Kowalska, 2020). Analyzing the results of studies of both domestic and foreign scientists dealing with the introduction of optimal doses of macro-and micronutrients to improve the productivity of rabbits and digestibility of nutrients in the diet, we see that this problem has not been sufficiently studied yet, and the obtained results are contradictory.…”

Section: Introductionmentioning

confidence: 99%

Influence of vitamin-mineral supplement on protein metabolism in rabbits’ organisms

Fedorchenko¹

2021

Ukr. Jour. of Vet. and Agr. Sci.

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The purpose of the study is to study the influence of different vitamin-mineral supplement “Tekro” doses on biochemical parameters in blood plasma and liver of rabbits of New Zealand breed. The research methodology is based on research according to generally accepted research methods. Biochemical parameters were studied in rabbits’ organisms at 45, 60, 75 and 90 days of rearing with feeding of different doses of vitamin-mineral supplement “Tekro”, namely 3 %, 3.5 %, 4 %. The academic novelty is that nowadays the problem of the effect of different vitamin-mineral supplement “Tekro” doses on biochemical parameters in the blood and liver of rabbits has not been studied. Analyzing the indicators of the total protein content in the blood plasma of rabbits of the experimental groups and the control one for 90 days, it was noted that there was no significant difference in the indicators. In the liver of rabbits of the age from 45 to 90 days there was a tendency to increase the protein content due to the effects on the body of various doses of vitamin and mineral supplement “Tekro”. It has been established the positive effect of vitamin-mineral supplement “Tekro” on ALT activity of rabbits in experimental groups. At the age of 75 days, significantly higher ALT activity was recorded in rabbits of the 3rd experimental group by 35.8 % compared to animals in the control group.

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Animal Fats in Rabbit Feeding – A Review

Cited by 6 publications

References 116 publications

Feeds of animal origin in rabbit nutrition – a review

Feeds of animal origin in rabbit nutrition – a review

Effect of Type and Dietary Fat Content on Rabbit Growing Performance and Nutrient Retention from 34 to 63 Days Old

Influence of vitamin-mineral supplement on protein metabolism in rabbits’ organisms

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