Use of sunflower meal as a protein source in diets of growing lambs
ABSTRACT This study aimed to evaluate the effects of sunflower meal (SFM) inclusion on the performance, nutrient digestibility, and respirometric parameters in sheep. Twenty-four Dorper × Santa Inês uncastrated males, with an average age of 5 mo and initial body weight (BW) of 27.91±6.0 kg, were dis...
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| Format: | Article |
| Language: | English |
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Sociedade Brasileira de Zootecnia
2023-11-01
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| Series: | Revista Brasileira de Zootecnia |
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| Online Access: | http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-35982023000100807&lng=en&tlng=en |
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| author | Luciana Castro Geraseev Neyton Carlos da Silva Amália Saturnino Chaves Diego Santana Costa Laís Trindade de Castro Ornelas Letícia Ferrari Crocomo Sóstenes de Jesus Magalhães Moreira |
| author_facet | Luciana Castro Geraseev Neyton Carlos da Silva Amália Saturnino Chaves Diego Santana Costa Laís Trindade de Castro Ornelas Letícia Ferrari Crocomo Sóstenes de Jesus Magalhães Moreira |
| author_sort | Luciana Castro Geraseev |
| collection | DOAJ |
| description | ABSTRACT This study aimed to evaluate the effects of sunflower meal (SFM) inclusion on the performance, nutrient digestibility, and respirometric parameters in sheep. Twenty-four Dorper × Santa Inês uncastrated males, with an average age of 5 mo and initial body weight (BW) of 27.91±6.0 kg, were distributed in a randomized block design with four treatment diets containing 0, 100, 200, and 300 g of SFM/kg of total dry matter, replacing soybean meal. Intake, weight gain, ingestive behavior, and in vitro digestibility were evaluated according to the SFM inclusion. The respirometric parameters were evaluated in an open-circuit respirometric chamber. There was a quadratic response in dry matter intake expressed according to the SFM inclusion, with minimum points of 90.56 g/kg 0.75 BW for inclusion levels of 96 g of SFM/kg. A linear decrease in the in vivo digestibility of dry matter, neutral detergent fiber, and non-fibrous carbohydrate and in vitro fermentation of dry matter and fibrous carbohydrates was observed in response to SFM inclusion. These results reflect the higher fiber content of the byproduct, which reduced the non-fibrous carbohydrates in the diets. Despite the change in nutrient availability, average daily gain (299 g/day), O 2 consumption (26.24 L/kg 0.75 BW), and CH 4 production (2.25 L/kg 0.75 BW) were not influenced by the SFM inclusion, indicating that changes in the nutritional value of the diet did not affect the animals’ energetic metabolism. Sunflower meal inclusion decreased the digestibility but did not affect the animal gain and the respirometric parameters. The SFM can replace soybean meal in the diet of growing lambs; however, it has a maximum inclusion point of 88 g SFM/kg for feed conversion, which is a necessary factor for evaluating the replacement cost. |
| first_indexed | 2024-03-11T10:44:26Z |
| format | Article |
| id | doaj.art-d95a5f8c84764847bc80189465637aff |
| institution | Directory Open Access Journal |
| issn | 1806-9290 |
| language | English |
| last_indexed | 2024-03-11T10:44:26Z |
| publishDate | 2023-11-01 |
| publisher | Sociedade Brasileira de Zootecnia |
| record_format | Article |
| series | Revista Brasileira de Zootecnia |
| spelling | doaj.art-d95a5f8c84764847bc80189465637aff2023-11-14T07:48:37ZengSociedade Brasileira de ZootecniaRevista Brasileira de Zootecnia1806-92902023-11-015210.37496/rbz5220220144Use of sunflower meal as a protein source in diets of growing lambsLuciana Castro Geraseevhttps://orcid.org/0000-0001-8926-0367Neyton Carlos da Silvahttps://orcid.org/0000-0001-6942-3106Amália Saturnino Chaveshttps://orcid.org/0000-0001-8270-384XDiego Santana Costahttps://orcid.org/0000-0003-4408-6750Laís Trindade de Castro Ornelashttps://orcid.org/0000-0003-0951-7690Letícia Ferrari Crocomohttps://orcid.org/0000-0002-6174-3153Sóstenes de Jesus Magalhães Moreirahttps://orcid.org/0000-0002-5187-9292ABSTRACT This study aimed to evaluate the effects of sunflower meal (SFM) inclusion on the performance, nutrient digestibility, and respirometric parameters in sheep. Twenty-four Dorper × Santa Inês uncastrated males, with an average age of 5 mo and initial body weight (BW) of 27.91±6.0 kg, were distributed in a randomized block design with four treatment diets containing 0, 100, 200, and 300 g of SFM/kg of total dry matter, replacing soybean meal. Intake, weight gain, ingestive behavior, and in vitro digestibility were evaluated according to the SFM inclusion. The respirometric parameters were evaluated in an open-circuit respirometric chamber. There was a quadratic response in dry matter intake expressed according to the SFM inclusion, with minimum points of 90.56 g/kg 0.75 BW for inclusion levels of 96 g of SFM/kg. A linear decrease in the in vivo digestibility of dry matter, neutral detergent fiber, and non-fibrous carbohydrate and in vitro fermentation of dry matter and fibrous carbohydrates was observed in response to SFM inclusion. These results reflect the higher fiber content of the byproduct, which reduced the non-fibrous carbohydrates in the diets. Despite the change in nutrient availability, average daily gain (299 g/day), O 2 consumption (26.24 L/kg 0.75 BW), and CH 4 production (2.25 L/kg 0.75 BW) were not influenced by the SFM inclusion, indicating that changes in the nutritional value of the diet did not affect the animals’ energetic metabolism. Sunflower meal inclusion decreased the digestibility but did not affect the animal gain and the respirometric parameters. The SFM can replace soybean meal in the diet of growing lambs; however, it has a maximum inclusion point of 88 g SFM/kg for feed conversion, which is a necessary factor for evaluating the replacement cost.http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-35982023000100807&lng=en&tlng=enbyproductenergetic metabolismHelianthus annuus Llambovinerespirometry |
| spellingShingle | Luciana Castro Geraseev Neyton Carlos da Silva Amália Saturnino Chaves Diego Santana Costa Laís Trindade de Castro Ornelas Letícia Ferrari Crocomo Sóstenes de Jesus Magalhães Moreira Use of sunflower meal as a protein source in diets of growing lambs Revista Brasileira de Zootecnia byproduct energetic metabolism Helianthus annuus L lamb ovine respirometry |
| title | Use of sunflower meal as a protein source in diets of growing lambs |
| title_full | Use of sunflower meal as a protein source in diets of growing lambs |
| title_fullStr | Use of sunflower meal as a protein source in diets of growing lambs |
| title_full_unstemmed | Use of sunflower meal as a protein source in diets of growing lambs |
| title_short | Use of sunflower meal as a protein source in diets of growing lambs |
| title_sort | use of sunflower meal as a protein source in diets of growing lambs |
| topic | byproduct energetic metabolism Helianthus annuus L lamb ovine respirometry |
| url | http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-35982023000100807&lng=en&tlng=en |
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