The Effect of Crossbreeding on Some Economic Traits for Chicks of Lohmann Chicken
Abstract: The experiment has been conducted at the poultry farm of Al-Qadisyah University, College of Agriculture, Department of Animal Production , for the period 24/11/2018 till 10/4/2019 by using 80 hatching chicks which belong to 20 dams and 5 sires, each sire includes 16 chicks. Four chickens a...
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| Format: | Article |
| Language: | Arabic |
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University of Al-Qadisiya
2020-06-01
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| Series: | Al-Qadisiyah Journal For Agriculture Sciences |
| Online Access: | https://jouagr.qu.edu.iq/article_167069_0d3ecfa186d2c4d644e2ac3f446d8522.pdf |
| _version_ | 1819109324739313664 |
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| author | Allawi Luaibi Dagher Al-Khauzai |
| author_facet | Allawi Luaibi Dagher Al-Khauzai |
| author_sort | Allawi Luaibi Dagher Al-Khauzai |
| collection | DOAJ |
| description | Abstract: The experiment has been conducted at the poultry farm of Al-Qadisyah University, College of Agriculture, Department of Animal Production , for the period 24/11/2018 till 10/4/2019 by using 80 hatching chicks which belong to 20 dams and 5 sires, each sire includes 16 chicks. Four chickens are put with each sire, the first sire( Leghorn) crossbreeding with dams of Lohmann , the remaining sires are local cocks ,with five Lohmann hens. The chicks of each sire divided into two replicates ,each replicate contains 8 chicks , the experiment continues for 42 days of age.<br /> The experiment aims to study the effect of sire groups on growth traits (weight at hatching , weight at 42 days of age , weight gain and daily weight gain ) Also , the effect of sire on weekly consumption feed , in addition to estimate the heritability for previous traits and the genetic correlations among these traits.<br /> The results can be summarized as follows :<br /> 1- The overall means of weight at hatching , weigh at 42 days of age , weight gain and daily weight gain are 34.572 , 354.898 , 320.327 and 7.627 gm respectively , the sire groups appear significantly (p0.05) effect on weight at hatching and weight at 42 days of age and weekly consumption seeds.<br /> 2- Sex has significantly (p0.05) effect on weight at hatching and weight at 42 days of age.<br /> 3- The conversion feed ratio is 3.462 gm consume feed/ gm of meat.<br /> 4- The estimated values of heritability for weight at hatching weight at 42 days of age , weight gain and daily weight gain and daily weight gain , are 0.332 , 0.55 , 0.55 and 0.56 respectively.<br /> The values of genetic correlation between weight at hatching and weight at 42 days of age and between weight at hatching and weight gain are 0.98 and 0.58 respectively. |
| first_indexed | 2024-12-22T03:24:01Z |
| format | Article |
| id | doaj.art-122dc2a9fbe6459384c609dbaa315732 |
| institution | Directory Open Access Journal |
| issn | 2077-5822 2618-1479 |
| language | Arabic |
| last_indexed | 2024-12-22T03:24:01Z |
| publishDate | 2020-06-01 |
| publisher | University of Al-Qadisiya |
| record_format | Article |
| series | Al-Qadisiyah Journal For Agriculture Sciences |
| spelling | doaj.art-122dc2a9fbe6459384c609dbaa3157322022-12-21T18:40:39ZaraUniversity of Al-QadisiyaAl-Qadisiyah Journal For Agriculture Sciences2077-58222618-14792020-06-0110122122610.33794/qjas.2020.167069167069The Effect of Crossbreeding on Some Economic Traits for Chicks of Lohmann ChickenAllawi Luaibi Dagher Al-Khauzai0College of Agriculture / University of Al-QadisiyahAbstract: The experiment has been conducted at the poultry farm of Al-Qadisyah University, College of Agriculture, Department of Animal Production , for the period 24/11/2018 till 10/4/2019 by using 80 hatching chicks which belong to 20 dams and 5 sires, each sire includes 16 chicks. Four chickens are put with each sire, the first sire( Leghorn) crossbreeding with dams of Lohmann , the remaining sires are local cocks ,with five Lohmann hens. The chicks of each sire divided into two replicates ,each replicate contains 8 chicks , the experiment continues for 42 days of age.<br /> The experiment aims to study the effect of sire groups on growth traits (weight at hatching , weight at 42 days of age , weight gain and daily weight gain ) Also , the effect of sire on weekly consumption feed , in addition to estimate the heritability for previous traits and the genetic correlations among these traits.<br /> The results can be summarized as follows :<br /> 1- The overall means of weight at hatching , weigh at 42 days of age , weight gain and daily weight gain are 34.572 , 354.898 , 320.327 and 7.627 gm respectively , the sire groups appear significantly (p0.05) effect on weight at hatching and weight at 42 days of age and weekly consumption seeds.<br /> 2- Sex has significantly (p0.05) effect on weight at hatching and weight at 42 days of age.<br /> 3- The conversion feed ratio is 3.462 gm consume feed/ gm of meat.<br /> 4- The estimated values of heritability for weight at hatching weight at 42 days of age , weight gain and daily weight gain and daily weight gain , are 0.332 , 0.55 , 0.55 and 0.56 respectively.<br /> The values of genetic correlation between weight at hatching and weight at 42 days of age and between weight at hatching and weight gain are 0.98 and 0.58 respectively.https://jouagr.qu.edu.iq/article_167069_0d3ecfa186d2c4d644e2ac3f446d8522.pdf |
| spellingShingle | Allawi Luaibi Dagher Al-Khauzai The Effect of Crossbreeding on Some Economic Traits for Chicks of Lohmann Chicken Al-Qadisiyah Journal For Agriculture Sciences |
| title | The Effect of Crossbreeding on Some Economic Traits for Chicks of Lohmann Chicken |
| title_full | The Effect of Crossbreeding on Some Economic Traits for Chicks of Lohmann Chicken |
| title_fullStr | The Effect of Crossbreeding on Some Economic Traits for Chicks of Lohmann Chicken |
| title_full_unstemmed | The Effect of Crossbreeding on Some Economic Traits for Chicks of Lohmann Chicken |
| title_short | The Effect of Crossbreeding on Some Economic Traits for Chicks of Lohmann Chicken |
| title_sort | effect of crossbreeding on some economic traits for chicks of lohmann chicken |
| url | https://jouagr.qu.edu.iq/article_167069_0d3ecfa186d2c4d644e2ac3f446d8522.pdf |
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