RODUCTIVITY AND QUALITY OF EGGS OF BILINEAR HYBRIDS OBTAINED ON THE BASIS OF GENE POOL ROCKS AND POPULATIONS

In the collection of biological resources "Genetic collection of rare and endangered breeds of chickens" was carried out the crossing of four gene pool breeds and autosex population of experimental CS. Three groups of color, autosex hybrids of two breeds were obtained. The indices of the obtained hybrids and parental forms were evaluated by egg production for the first four months of egg laying, weight and biophysical qualities of eggs at the age of 38 weeks. It was revealed the superiority of two groups of hybrids, alexandrite buff-striped (♂ - population of experimental CS x ♀ - Pervomayskaya) and alexandrite chocolate (♂ - New-Hampshire x ♀ - Zagorskaya salmon) over parental forms by the number of eggs on average chicken. Alexandrite buff-striped hybrids surpassed the egg-laying mothers 16.4 eggs (30.0%), chickens paternal forms by 13.7 eggs (23.5%). Hybrids of chocolate alexandrite surpassed mothers in egg production by 13.6 eggs (24.1%) and paternal chickens by 15.3 eggs (27.0%). Alexandrite red hybrids (♂ - Poltava clay x ♀ - Pervomayskaya) showed lower results on this parameter in comparison with both initial rocks (-9.3% relative to the parent and -19.5% compared to the hens of the paternal form). Hybrids of alexandrite buff-striped and chocolate, surpassed parental forms in the ratio of yolk to albumen in the egg. The best index of albumen/yolk was observed in alexandrite chocolate chickens of paternal forms (New-Hampshire) 0.15 (6.7%) and mothers 0.02 (1%). Hybrids of alexandrite buff-striped surpassed both parental forms on the greatest number of the considered indications (three of seven). This is the number of eggs per average chicken, the ratio of albumen/yolk and egg density. Hybrids alexandrite chocolate was superior to both parental forms in two indications (number of eggs per hen and the average density of eggs), alexandrite red was only in one indication (the density of the egg). Other quality characteristics of the eggs of the hybrids had intermediate values between the paternal and maternal forms. Hybrids that showed egg heterosis during the studied period and the best albumen/yolk ratio in the egg are promised for small farms.

chickens, breeds, gene pool, autosex, hybrids, heterosis, eggs, biophysical qualities

1. Перинек О. Ю. Проблема повышения питательной ценности яиц и мяса кур и место генофондных пород в ее решении / О. Ю. Перинек, И. Л. Гальперн, О. И. Станишевская, Ю. Л. Силюкова // Генетика и разведение животных. - 2017. - № 3. - С. 12-22.

2. Фисинин В. И. Пищевая и биологическая ценность яиц и яичных продуктов / В. И. Фисинин, В. В. Гущин, В. С. Лукашенко, В. П. Агафонычев, А. Л. Штеле, М. А. Лысенко, А. Н. Шевяков // Справочник.- Сергиев Посад - 2013. - 28 с.

3. Федорова Е. С. Диаметр желтка куриных яиц как селекционный критерий для повышения их пищевой и энергетической ценности / Е. С. Федорова, О. И. Станишевская // Генетика и разведение животных. - 2015. - № 1. - С. 21-29.

4. Царенко П. П. Повышение качества продукции птицеводства: пищевые и инкубационные качества яйца / П. П. Царенко. - Л.: Агропромиздат. Ленинградское отделение, 1988. 240 с.