Changes in the feather-free body of broiler breeder hens after sexual maturity
M. K. Nonis A and R. M. Gous A B
+ Author Affiliations
- Author Affiliations
A School of Agricultural, Earth and Environmental Sciences, University of KwaZulu-Natal, Private Bag X01, Scottsville 3209, South Africa.
B Corresponding author. Email: gous@ukzn.ac.za
Animal Production Science 56(7) 1099-1104 https://doi.org/10.1071/AN14713
Submitted: 25 July 2014 Accepted: 16 December 2014 Published: 25 March 2015
Abstract
Changes in the feather-free body (water, lipid and protein) of broiler breeder hens was measured at intervals between 15 and 60 weeks of age to provide information that could be used as the basis for predicting their maintenance requirements. The mean weight of feather-free body protein varied between 348 and 379 g at 15–20 weeks, increasing to 648 g by 40 weeks and then remaining relatively constant for the rest of the laying period. Mean body lipid content increased from 160 g at 15 weeks to 711 g at 60 weeks. The initial increase in feather-free body protein weight can be ascribed to increases in ovary and oviduct weights as the birds become sexually mature, and to the variation in ages at which this development takes place. Our conclusion is that changes in bodyweight in broiler breeders after sexual maturity are mainly in body lipid content, this being a consequence of the way in which the birds are fed, and that any gain in body and feather protein occurs only in hens that are out of lay. We suggest that it should not be necessary to assume that protein and lipid growth is obligatory when determining nutrient requirements of broiler breeder hens.
Additional keywords: carcass composition, feather weight, maintenance requirement.
References
Attia YA, Burke WH, Yamani KA, Jensen LS (1995) Daily energy allotments and performance of broiler breeders. 2. Females. Poultry Science 74, 261–270.| Daily energy allotments and performance of broiler breeders. 2. Females.Crossref | GoogleScholarGoogle Scholar | 1:STN:280:DyaK2M3ktFeksQ%3D%3D&md5=09674513d993fedfa2496f78263c19f2CAS | 7724449PubMed |
Bennett CD, Leeson S (1990) Body composition of the broiler breeder pullet. Poultry Science 69, 715–720.
| Body composition of the broiler breeder pullet.Crossref | GoogleScholarGoogle Scholar | 1:STN:280:DyaK3czhtVygug%3D%3D&md5=e4be58a5f7db174fc4bde5b257f4fa38CAS | 2367263PubMed |
Blair R, McCowan MM, Bolton W (1976) Effects of food regulation during the growing and laying stages on the productivity of broiler breeders. British Poultry Science 17, 215–223.
| Effects of food regulation during the growing and laying stages on the productivity of broiler breeders.Crossref | GoogleScholarGoogle Scholar |
Bowmaker JA, Gous RM (1989) A quantification of reproductive changes and nutrient requirements of broiler breeder pullets at sexual maturity. British Poultry Science 30, 663–676.
| A quantification of reproductive changes and nutrient requirements of broiler breeder pullets at sexual maturity.Crossref | GoogleScholarGoogle Scholar | 1:STN:280:DyaK3c%2FlvVWktg%3D%3D&md5=6fdb71b714950b85ecdc804b8124ac80CAS |
Burnham D, Gous RM (1992) Isoleucine responses in broiler chickens. The requirement for maintenance. British Poultry Science 33, 59–69.
| Isoleucine responses in broiler chickens. The requirement for maintenance.Crossref | GoogleScholarGoogle Scholar | 1:CAS:528:DyaK38XksVOiu7c%3D&md5=0420668317a6274f02d01bf4bc66b829CAS | 1571808PubMed |
Byerly TC (1979) Prediction of the food intake of laying hens. In ‘Food intake regulation in poultry’. (Eds KN Boorman, BM Freeman) pp. 327–364. Poultry Science Symposium Series No. 14. (British Poultry Science Ltd: Edinburgh)
Emmans GC (1989) The growth of turkeys. In ‘Recent advances in turkey science’. (Eds C Nixey, TC Grey) pp. 135–166. (Butterworths: London)
Emmans GC (1994) Effective energy: a concept of energy utilisation applied across species. The British Journal of Nutrition 71, 801–821.
| Effective energy: a concept of energy utilisation applied across species.Crossref | GoogleScholarGoogle Scholar | 1:STN:280:DyaK2czgsVyjtg%3D%3D&md5=b77c11defea5e00ba4d6cdc1d901c811CAS | 8031731PubMed |
Emmans GC, Fisher C (1986) Problems in nutritional theory. In ‘Nutrient requirements of poultry and nutritional research’. (Eds C Fisher, KN Boorman) pp. 9–40. (Butterworths: London)
Ferguson NS, Gous RM, Emmans GC (1997) Predicting the effects of animal variation on growth and food intake in growing pigs using simulation modelling. Animal Science 64, 513–522.
| Predicting the effects of animal variation on growth and food intake in growing pigs using simulation modelling.Crossref | GoogleScholarGoogle Scholar |
Fisher C (1998) Amino acid requirements of broiler breeders. Poultry Science 77, 124–133.
| Amino acid requirements of broiler breeders.Crossref | GoogleScholarGoogle Scholar | 1:CAS:528:DyaK1cXjvFWgtrs%3D&md5=d5a9a85820d02a0d8ef19376397e907aCAS | 9469762PubMed |
Fisher C, Gous RM (2008) Recent evidence about the protein and amino acid nutrition of broiler breeder hens. In ‘XXIII world’s poultry congress’, Brisbane, Australia.
Genstat (2002) Genstat statistical software, release 6.1. Lawes Agricultural Trust.
Gous RM, Nonis MA (2010) Modelling egg production and nutrient responses in broiler breeder hens. The Journal of Agricultural Science 148, 287–301.
| Modelling egg production and nutrient responses in broiler breeder hens.Crossref | GoogleScholarGoogle Scholar | 1:CAS:528:DC%2BC3cXltlentLs%3D&md5=4e1011eb66a773cd1a3f149cb881f7a2CAS |
Gous RM, Moran ET, Stilborn HR, Bradford GD, Emmans GC (1999) Evaluation of the parameters needed to describe the overall growth, the chemical growth, and the growth of feathers and breast muscles of broilers. Poultry Science 78, 812–821.
| Evaluation of the parameters needed to describe the overall growth, the chemical growth, and the growth of feathers and breast muscles of broilers.Crossref | GoogleScholarGoogle Scholar | 1:STN:280:DyaK1MzmsVygtg%3D%3D&md5=29b85c6d23170c2c4aa4d9359f034748CAS | 10438123PubMed |
Hancock CE, Bradford GD, Emmans GC, Gous RM (1995) The evaluation of the growth parameters of six breeds of commercial broiler chickens. British Poultry Science 36, 247–264.
| The evaluation of the growth parameters of six breeds of commercial broiler chickens.Crossref | GoogleScholarGoogle Scholar | 1:STN:280:DyaK2MzosVKnsw%3D%3D&md5=e455b72a64e5ab7a25568aabb6a7a843CAS | 7655899PubMed |
Houdijk JGM, Kyriazakis I, Coop RL, Jackson F (2001) The expression of immunity to Teladorsagia circumcincta in ewes and its relationship to protein nutrition depend on body protein reserves. Parasitology 122, 661–672.
| The expression of immunity to Teladorsagia circumcincta in ewes and its relationship to protein nutrition depend on body protein reserves.Crossref | GoogleScholarGoogle Scholar | 1:CAS:528:DC%2BD3MXlslSltLs%3D&md5=21f23555ea4a8f45b35a48818eebf518CAS |
King RH (1987) Nutritional anoestrus in young sows. Pig News and Information 8, 15–22.
Leeson S, Walsh T (2004) Feathering in commercial poultry. II. Factors influencing feather growth and feather loss. World’s Poultry Science Journal 60, 52–63.
Nonis MA, Gous RM (2008) Threonine and lysine requirements for maintenance in chickens. South African Journal of Animal Science 38, 75–82.
Nonis MK, Gous RM (2012) Broiler breeders utilise body lipid as an energy source. South African Journal of Animal Science 42, 369–378.
Pearson RA, Herron KM (1980) Feeding standards during lay and reproductive performance of broiler breeders. British Poultry Science 21, 171–181.
| Feeding standards during lay and reproductive performance of broiler breeders.Crossref | GoogleScholarGoogle Scholar |
Pearson RA, Herron KM (1981) Effects of energy and protein allowance during lay on the reproductive performance of broiler breeder hens. British Poultry Science 22, 227–239.
| Effects of energy and protein allowance during lay on the reproductive performance of broiler breeder hens.Crossref | GoogleScholarGoogle Scholar | 1:CAS:528:DyaL3MXkvFGqsbo%3D&md5=50720e5c47c6bb434c4ed5a5f4259f0aCAS |
Pearson RA, Herron KM (1982) Relationship between energy and protein intakes and laying characteristics in individual-cages broiler breeder hens. British Poultry Science 23, 145–159.
| Relationship between energy and protein intakes and laying characteristics in individual-cages broiler breeder hens.Crossref | GoogleScholarGoogle Scholar |
Péczely P (1992) Hormonal regulation of feather development and moult on the level of feather follicles. Ornis Scandinavica 23, 346–354.
| Hormonal regulation of feather development and moult on the level of feather follicles.Crossref | GoogleScholarGoogle Scholar |
Renema RA, Robinson FE, Newcombe M, Mckay RI (1999) Effect of body weight and feed allocation during sexual maturation in broiler breeder hens. 1. Growth and carcass characteristics. Poultry Science 78, 619–628.
| Effect of body weight and feed allocation during sexual maturation in broiler breeder hens. 1. Growth and carcass characteristics.Crossref | GoogleScholarGoogle Scholar | 1:STN:280:DyaK1M3ktl2lsg%3D%3D&md5=2f95450af9da17ebbc00e38a20957e8cCAS | 10228954PubMed |
Renema RA, Robinson FE, Goerzen PR (2001) Effects of altering growth curve and age at photostimulation in female broiler breeders. 1. Reproductive development. Canadian Journal of Animal Science 81, 467–476.
| Effects of altering growth curve and age at photostimulation in female broiler breeders. 1. Reproductive development.Crossref | GoogleScholarGoogle Scholar |
Shields RG, Mahan DC (1983) Effects of pregnancy and lactation on the body conditoin of first-litter female swine. Journal of Animal Science 57, 594–603.
Shields RG, Mahan DC, Maxson PF (1985) Effect of dietary gestation and lactation protein levels on reproductive performance and body composition of first-litter female swine. Journal of Animal Science 60, 179–189.
Spratt RS, Leeson S (1987) Broiler breeder performance in response to diet protein and energy. Poultry Science 66, 683–693.
| Broiler breeder performance in response to diet protein and energy.Crossref | GoogleScholarGoogle Scholar | 1:STN:280:DyaL2s3ovFCnuw%3D%3D&md5=ffc39194eb437ca7139c0503dbffee36CAS | 3615328PubMed |
Taylor StCS (1980) Genetic size-scaling rules in animal growth. Animal Production 30, 161–165.
| Genetic size-scaling rules in animal growth.Crossref | GoogleScholarGoogle Scholar |
Whittemore CT, Yang H (1989) Physical and chemical composition of the body of breeding sows with different body subcutaneous fat depth at parturition, differing nutrition during lactation and differing litter size. Animal Production 48, 203–212.
| Physical and chemical composition of the body of breeding sows with different body subcutaneous fat depth at parturition, differing nutrition during lactation and differing litter size.Crossref | GoogleScholarGoogle Scholar |
Wilson JL, Robinson FE, Robinson NA, Hardin RT (1995) Effects of feed allocation on female broiler breeders. Journal of Applied Poultry Research 4, 193–202.
| Effects of feed allocation on female broiler breeders.Crossref | GoogleScholarGoogle Scholar |
