Effect of Dietary Level of Beet Pulp, with or without Molasses, on Health Status, Growth Performance, and Carcass and Digestive Tract Traits of Rabbits
To evaluate the effect of dietary level of beet pulp, with or without molasses, on growth performance, a total of 470 28-day-old rabbits were used (614 ± 6 g). Animals were randomly allocated into five dietary treatment groups: Control, without beet pulp; BP<sub>20</sub>, and BP<sub&g...
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MDPI AG
2022-12-01
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| Series: | Animals |
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| Online Access: | https://www.mdpi.com/2076-2615/12/23/3441 |
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| author | Orlando Arce Gilbert Alagón Luis Ródenas Eugenio Martínez-Paredes Vicente Javier Moya Concha Cervera Juan José Pascual |
| author_facet | Orlando Arce Gilbert Alagón Luis Ródenas Eugenio Martínez-Paredes Vicente Javier Moya Concha Cervera Juan José Pascual |
| author_sort | Orlando Arce |
| collection | DOAJ |
| description | To evaluate the effect of dietary level of beet pulp, with or without molasses, on growth performance, a total of 470 28-day-old rabbits were used (614 ± 6 g). Animals were randomly allocated into five dietary treatment groups: Control, without beet pulp; BP<sub>20</sub>, and BP<sub>40</sub> with 20 and 40% of beet pulp without molasses, respectively; and BPM<sub>20</sub> and BPM<sub>40</sub>, with 20 and 40% of beet pulp with molasses, respectively. Daily feed intake (DFI) and average daily gain (ADG) were controlled at 28, 49, and 59 days of age. Carcass and digestive tract traits were also determined at 59 days of age. Mortality and morbidity were controlled daily. Mortality during the growing period was higher in BPM than in BP groups (+9.2%; <i>p</i> < 0.05). The higher the inclusion of beet pulp, the lower the DFI and ADG of animals (5.5 and 4.6% for every 20% inclusion, respectively; <i>p</i> < 0.001), as well as the dressing out percentage, the liver proportion, and the dissectible fat percentage of their carcasses. However, the best feed efficiency during the last 10 days was obtained with the BPM<sub>40</sub> group. The higher the inclusion of beet pulp, the higher the weight of the empty gastrointestinal tract and cecum (+2.4 and +3.0 percentage points for every 20% inclusion, respectively; <i>p</i> < 0.001). In fact, a higher inclusion of beet pulp decreased the pH and dry matter and decreased the total volatile fatty acids content of cecum richer in acetic acid but poorer in propionic, isobutiric, isovaleric, and valeric acids. Stomach weight was lower, and the capric acid content in the cecum was higher in the BPM than in the BP group. The inclusion of beet pulp in the feed reduced the growth performance and carcass yield of growing rabbits, and an even higher incidence of digestive disorders was observed when beet pulp included molasses. |
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| institution | Directory Open Access Journal |
| issn | 2076-2615 |
| language | English |
| last_indexed | 2024-03-09T17:54:42Z |
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| spelling | doaj.art-e62491e8298144b7bafd134a4b0116c92023-11-24T10:27:10ZengMDPI AGAnimals2076-26152022-12-011223344110.3390/ani12233441Effect of Dietary Level of Beet Pulp, with or without Molasses, on Health Status, Growth Performance, and Carcass and Digestive Tract Traits of RabbitsOrlando Arce0Gilbert Alagón1Luis Ródenas2Eugenio Martínez-Paredes3Vicente Javier Moya4Concha Cervera5Juan José Pascual6Departamento de Ciencia Animal, Facultad de Ciencias Agrarias y Naturales, Universidad Técnica de Oruro, Av. 6 de Octubre 5715, Cas. Postal 49, Oruro 0401, BoliviaFacultad de Agronomía y Zootecnia, Universidad Nacional de San Antonio Abad del Cusco, Ap. Postal 921, Cusco 08000, PeruInstitute for Animal Science and Technology, Universitat Politècnica de València, Camino de Vera 14, 46071 Valencia, SpainInstitute for Animal Science and Technology, Universitat Politècnica de València, Camino de Vera 14, 46071 Valencia, SpainInstitute for Animal Science and Technology, Universitat Politècnica de València, Camino de Vera 14, 46071 Valencia, SpainInstitute for Animal Science and Technology, Universitat Politècnica de València, Camino de Vera 14, 46071 Valencia, SpainInstitute for Animal Science and Technology, Universitat Politècnica de València, Camino de Vera 14, 46071 Valencia, SpainTo evaluate the effect of dietary level of beet pulp, with or without molasses, on growth performance, a total of 470 28-day-old rabbits were used (614 ± 6 g). Animals were randomly allocated into five dietary treatment groups: Control, without beet pulp; BP<sub>20</sub>, and BP<sub>40</sub> with 20 and 40% of beet pulp without molasses, respectively; and BPM<sub>20</sub> and BPM<sub>40</sub>, with 20 and 40% of beet pulp with molasses, respectively. Daily feed intake (DFI) and average daily gain (ADG) were controlled at 28, 49, and 59 days of age. Carcass and digestive tract traits were also determined at 59 days of age. Mortality and morbidity were controlled daily. Mortality during the growing period was higher in BPM than in BP groups (+9.2%; <i>p</i> < 0.05). The higher the inclusion of beet pulp, the lower the DFI and ADG of animals (5.5 and 4.6% for every 20% inclusion, respectively; <i>p</i> < 0.001), as well as the dressing out percentage, the liver proportion, and the dissectible fat percentage of their carcasses. However, the best feed efficiency during the last 10 days was obtained with the BPM<sub>40</sub> group. The higher the inclusion of beet pulp, the higher the weight of the empty gastrointestinal tract and cecum (+2.4 and +3.0 percentage points for every 20% inclusion, respectively; <i>p</i> < 0.001). In fact, a higher inclusion of beet pulp decreased the pH and dry matter and decreased the total volatile fatty acids content of cecum richer in acetic acid but poorer in propionic, isobutiric, isovaleric, and valeric acids. Stomach weight was lower, and the capric acid content in the cecum was higher in the BPM than in the BP group. The inclusion of beet pulp in the feed reduced the growth performance and carcass yield of growing rabbits, and an even higher incidence of digestive disorders was observed when beet pulp included molasses.https://www.mdpi.com/2076-2615/12/23/3441mortalitydaily gaindressing outcecal activity |
| spellingShingle | Orlando Arce Gilbert Alagón Luis Ródenas Eugenio Martínez-Paredes Vicente Javier Moya Concha Cervera Juan José Pascual Effect of Dietary Level of Beet Pulp, with or without Molasses, on Health Status, Growth Performance, and Carcass and Digestive Tract Traits of Rabbits Animals mortality daily gain dressing out cecal activity |
| title | Effect of Dietary Level of Beet Pulp, with or without Molasses, on Health Status, Growth Performance, and Carcass and Digestive Tract Traits of Rabbits |
| title_full | Effect of Dietary Level of Beet Pulp, with or without Molasses, on Health Status, Growth Performance, and Carcass and Digestive Tract Traits of Rabbits |
| title_fullStr | Effect of Dietary Level of Beet Pulp, with or without Molasses, on Health Status, Growth Performance, and Carcass and Digestive Tract Traits of Rabbits |
| title_full_unstemmed | Effect of Dietary Level of Beet Pulp, with or without Molasses, on Health Status, Growth Performance, and Carcass and Digestive Tract Traits of Rabbits |
| title_short | Effect of Dietary Level of Beet Pulp, with or without Molasses, on Health Status, Growth Performance, and Carcass and Digestive Tract Traits of Rabbits |
| title_sort | effect of dietary level of beet pulp with or without molasses on health status growth performance and carcass and digestive tract traits of rabbits |
| topic | mortality daily gain dressing out cecal activity |
| url | https://www.mdpi.com/2076-2615/12/23/3441 |
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