Sana Efranji, Mohammad Sedghi, Amir Hossein Mahdavi, Mohammad Reza Abdollahi
{"title":"不溶性纤维夹杂物和饲料形式对海兰W-36产蛋鸡生产性能、胫骨骨质量和胃肠道组织形态学的交互作用","authors":"Sana Efranji, Mohammad Sedghi, Amir Hossein Mahdavi, Mohammad Reza Abdollahi","doi":"10.1071/an23221","DOIUrl":null,"url":null,"abstract":"<strong> Context</strong><p>Adding fibre to the diet is one of the factors that help the growth and development of the digestive system of pullets during the rearing period. Insoluble-fibre inclusion enhances the grinding competence and functionality of gizzards and increases the retention time of digesta in the gastrointestinal tract.</p><strong> Aims</strong><p>The aim of this study was to investigate the interaction effects of insoluble fibre and the physical form of feed.</p><strong> Methods</strong><p>The interactive effect of two levels of sunflower hull (SH, 0 and 40 g/kg) and two feed forms (mash and pellet) on the growth of Hy-Line-W36 laying pullets from hatching until 8 weeks of age was investigated. For this purpose, 640 1-day-old chicks were randomly assigned to 64 cages.</p><strong> Key results</strong><p>Insoluble fibre had no effect on performance. Birds offered pelleted feed had a higher overall daily weight gain and daily feed intake than did those fed mash feed. A significant interaction between SH inclusion and feed form was observed for daily feed intake from 0 to 2 weeks. The pullets fed with mash feed without SH had a heavier weight of the gizzard than did the others. Feeding pelleted diets reduced caecum weight and the length of jejunum and ileum. Fibre inclusion resulted in a lower crypt depth in the jejunum. The jejunal villus height and muscle-layer thickness were higher in pellet-fed pullets. Feeding pelleted diets increased the tibia length and tibiotarsal index. The lowest propionate content of caecum was recorded in pellet-fed pullets without SH.</p><strong> Conclusions</strong><p>Overall, the inclusion of SH in diets had no significant effect on performance but improved the morphology of the intestine. Feeding pelleted diets improved the growth performance and intestinal morphology of pullets.</p><strong> Implications</strong><p>Compared to mash diets, feeding pelleted diets improved the performance. Adding fiber to the diet improves intestinal structure, which helps improve digestion and absorption of nutrients. Also, feed pelleting technology improves the effective parameters of the gastrointestinal tract in laying pullets. Also, the use of pelleted feed compared to mesh is associated with improved economic efficiency.</p>","PeriodicalId":7895,"journal":{"name":"Animal Production Science","volume":"2 1","pages":""},"PeriodicalIF":1.4000,"publicationDate":"2023-12-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":"{\"title\":\"The interactive effect of insoluble-fibre inclusion and feed form on the performance, tibia bone quality, and gastrointestinal histomorphology of Hy-Line W-36 laying pullets\",\"authors\":\"Sana Efranji, Mohammad Sedghi, Amir Hossein Mahdavi, Mohammad Reza Abdollahi\",\"doi\":\"10.1071/an23221\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"<strong> Context</strong><p>Adding fibre to the diet is one of the factors that help the growth and development of the digestive system of pullets during the rearing period. Insoluble-fibre inclusion enhances the grinding competence and functionality of gizzards and increases the retention time of digesta in the gastrointestinal tract.</p><strong> Aims</strong><p>The aim of this study was to investigate the interaction effects of insoluble fibre and the physical form of feed.</p><strong> Methods</strong><p>The interactive effect of two levels of sunflower hull (SH, 0 and 40 g/kg) and two feed forms (mash and pellet) on the growth of Hy-Line-W36 laying pullets from hatching until 8 weeks of age was investigated. For this purpose, 640 1-day-old chicks were randomly assigned to 64 cages.</p><strong> Key results</strong><p>Insoluble fibre had no effect on performance. Birds offered pelleted feed had a higher overall daily weight gain and daily feed intake than did those fed mash feed. A significant interaction between SH inclusion and feed form was observed for daily feed intake from 0 to 2 weeks. The pullets fed with mash feed without SH had a heavier weight of the gizzard than did the others. Feeding pelleted diets reduced caecum weight and the length of jejunum and ileum. Fibre inclusion resulted in a lower crypt depth in the jejunum. The jejunal villus height and muscle-layer thickness were higher in pellet-fed pullets. Feeding pelleted diets increased the tibia length and tibiotarsal index. The lowest propionate content of caecum was recorded in pellet-fed pullets without SH.</p><strong> Conclusions</strong><p>Overall, the inclusion of SH in diets had no significant effect on performance but improved the morphology of the intestine. Feeding pelleted diets improved the growth performance and intestinal morphology of pullets.</p><strong> Implications</strong><p>Compared to mash diets, feeding pelleted diets improved the performance. Adding fiber to the diet improves intestinal structure, which helps improve digestion and absorption of nutrients. Also, feed pelleting technology improves the effective parameters of the gastrointestinal tract in laying pullets. Also, the use of pelleted feed compared to mesh is associated with improved economic efficiency.</p>\",\"PeriodicalId\":7895,\"journal\":{\"name\":\"Animal Production Science\",\"volume\":\"2 1\",\"pages\":\"\"},\"PeriodicalIF\":1.4000,\"publicationDate\":\"2023-12-04\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"\",\"citationCount\":\"0\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"Animal Production Science\",\"FirstCategoryId\":\"97\",\"ListUrlMain\":\"https://doi.org/10.1071/an23221\",\"RegionNum\":4,\"RegionCategory\":\"农林科学\",\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"Q2\",\"JCRName\":\"Agricultural and Biological Sciences\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"Animal Production Science","FirstCategoryId":"97","ListUrlMain":"https://doi.org/10.1071/an23221","RegionNum":4,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q2","JCRName":"Agricultural and Biological Sciences","Score":null,"Total":0}
The interactive effect of insoluble-fibre inclusion and feed form on the performance, tibia bone quality, and gastrointestinal histomorphology of Hy-Line W-36 laying pullets
Context
Adding fibre to the diet is one of the factors that help the growth and development of the digestive system of pullets during the rearing period. Insoluble-fibre inclusion enhances the grinding competence and functionality of gizzards and increases the retention time of digesta in the gastrointestinal tract.
Aims
The aim of this study was to investigate the interaction effects of insoluble fibre and the physical form of feed.
Methods
The interactive effect of two levels of sunflower hull (SH, 0 and 40 g/kg) and two feed forms (mash and pellet) on the growth of Hy-Line-W36 laying pullets from hatching until 8 weeks of age was investigated. For this purpose, 640 1-day-old chicks were randomly assigned to 64 cages.
Key results
Insoluble fibre had no effect on performance. Birds offered pelleted feed had a higher overall daily weight gain and daily feed intake than did those fed mash feed. A significant interaction between SH inclusion and feed form was observed for daily feed intake from 0 to 2 weeks. The pullets fed with mash feed without SH had a heavier weight of the gizzard than did the others. Feeding pelleted diets reduced caecum weight and the length of jejunum and ileum. Fibre inclusion resulted in a lower crypt depth in the jejunum. The jejunal villus height and muscle-layer thickness were higher in pellet-fed pullets. Feeding pelleted diets increased the tibia length and tibiotarsal index. The lowest propionate content of caecum was recorded in pellet-fed pullets without SH.
Conclusions
Overall, the inclusion of SH in diets had no significant effect on performance but improved the morphology of the intestine. Feeding pelleted diets improved the growth performance and intestinal morphology of pullets.
Implications
Compared to mash diets, feeding pelleted diets improved the performance. Adding fiber to the diet improves intestinal structure, which helps improve digestion and absorption of nutrients. Also, feed pelleting technology improves the effective parameters of the gastrointestinal tract in laying pullets. Also, the use of pelleted feed compared to mesh is associated with improved economic efficiency.
期刊介绍：
Research papers in Animal Production Science focus on improving livestock and food production, and on the social and economic issues that influence primary producers. The journal (formerly known as Australian Journal of Experimental Agriculture) is predominantly concerned with domesticated animals (beef cattle, dairy cows, sheep, pigs, goats and poultry); however, contributions on horses and wild animals may be published where relevant.
Animal Production Science is published with the endorsement of the Commonwealth Scientific and Industrial Research Organisation (CSIRO) and the Australian Academy of Science.
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